M/M, MM, & MR/MR MK-UP IR UNITS IRT-IR MK-UP IR Modine has developed the best in direct-fired make-up air units, the M Series. irect-fired make-up air units are designed to provide an economical and efficient means of supplying tempered make-up air to a space or building. ny process which exhausts air from a building is a candidate for the application of a direct-fired make-up air unit to replace the exhausted air. Modine units are superior because: igh heat transfer efficiency results in lower fuel bills. Units are designed for indoor or outdoor mounting, affording flexibility in application and design, and simplifies installation. Natural or propane gas manifolds are factory-assembled to provide flexible fuel options. actory-wired electrical panel with numbered terminal-strip and wires ease installation. 00% factory flame-testing assures safe and reliable product is delivered every time. Weatherproof design, including a roof with drip ledge provides protection from the elements. Table of ontents Page eatures and enefits General Unit pplications Standard Model escriptions Model Nomenclature 7 General Performance ata 7 Unit onfigurations 7 Model & p Selection Guide - 0-8 Model & p Selection Guide - -0 Model & p Selection Guide - -0 0 Manifold rrangements Variable ir low Options Gas ontrols Unit and ccessory Weights M/MM/MR 0-8 imensions M/MM/MR 0-0 imensions 7 M/MM/MR -0 imensions 8 M/M/MM/MR/MR 0-0 Vertical imensions Roof urb imensions 0 vaporative ooler imensions Specifications The information presented in this literature is correct at the time of printing. Modine reserves the right to change design, dimensions and/or material specifications without notice.
M/M, MM, & MR/MR MK-UP IR UNITS TURS N NITS Profile ine urner Gas Manifold ompartment uel onnection N.P.T. 8 Gauge Galvanized Steel asing entrifugal an(s) lame Observation Port our ccess oors ( Per Side) Weatherproof ccess oors Optional Mtd. Main isconnect Switch Tool access raw Tight asteners ontrol abinet U.. Recognized/isted lectrical omponents ifting ugs djustable rives to 0 P urb daptable ase irect-fired make-up air units from Modine include the following: eatures enefits. 8-gauge galvanized steel casing. igh corrosion resistance for long life.. Gas manifold compartment Protects gas-manifold components and isolates them from electrical service.. xterior fuel connection N.P.T. pipe stub. Provides contractor/installer with easy connection point.. Weatherproof access doors Protects the unit s interior and all electrical and gas-manifold, and mechanical components from the elements.. Main disconnect switch (Optional) Insures power will be deactivated when control cabinet is open. lso provides ease of installation and single-point electrical connection.. Tooled-access, draw-tight door fasteners iscourages access by non-authorized personnel and assures positive sealing. 7. ontrol cabinet Provides easy and unobstructed access to electrical controls. 8. U.. recognized/listed electrical components ssures reliable and safe electrical components.. ifting lugs acilitates easy rigging and installation. 0. djustable drives to 0 P Simplifies onsite air balancing and eliminates need to change drives.. urb-adaptable base Simplifies installation as duct openings can be made inside curb opening.. our access doors (/side) Provides maximum access for easy adjustments and service.. lame observation port llows external observation of burner performance.. entrifugal fan(s) M-rated fans assure quality and performance.. ine burner irect-fired burner is clean, low NO x and operates at nearly 00% efficiency.. Profile plates actory set for maximum combustion efficiency. 7. T approved and certified. Third-party testing agency certifies equipment conformity to national safety standards.
M/M, MM, & MR/MR MK-UP IR UNITS GNR UNIT PPITIONS 00% Make-Up ir - Single Speed or processes which require 00% make-up air, direct-fired units provide the best fuel efficiency. The make-up air is heated directly by the gas flame, eliminating the need for a heat exchanger, and the general efficiency losses associated with indirect-fired heating equipment. In 00% make-up air applications, the amount of make-up air introduced into the building is equal, or just slightly more than the amount of exhaust air being liberated. or the best performance, the building should be kept under a slightly positive pressure. irect-fired units used for 00% make-up air are usually interlocked with an exhaust fan by means of an interlock relay (by others), which allows the make-up air unit to run only when an exhaust fan is operating. The heating load of the building is handled separately using indirect-fired unit heaters, or indirect-fired heating or heating/ventilating units. 00% Make-Up ir - Two Speed Two speed 00% make-up air units are used to serve the same function as single speed units, but they have the added advantage of providing flexibility of operation depending on load requirements. There are two common ways of applying two-speed 00% make-up air units. The first application is for buildings which have two fixed exhaust loads. The two exhaust loads should have a cfm ratio of approximately 0/0. Under these conditions, the first speed (low speed) is interlocked (interlock by others) with the first exhaust fan. The second speed (high speed) is interlocked (interlock by others) to operate when both exhaust fans are running. In this manner, one unit can accommodate two different exhaust loads. The second common application of a two speed unit is to accommodate winter exhaust and summer ventilation requirements. In this application, low speed is interlocked with the exhaust fan (interlock by others) and the unit runs on low speed whenever the exhaust fan is running. igh speed is controlled by a manual switch (by others) and the unit can be manually set to high speed whenever summer ventilation is desired. The heating load of the building is handled separately using indirect-fired unit heaters, or indirect-fired heating or heating/ventilating units. Recirculating Units irect-fired units can also be used as a combination make-up air, and heating and ventilating unit. This application requires units with the capability of operating with recirculated air as well as make-up air. There are two styles of units which can be used to achieve the heating and ventilating function. They are, fixed two-position return air units, and 80/0 floating damper recirculating units. Two Position: ixed Return ir Units - 80/0, 70/0, 0/0 and 0/0 Two position, fixed return air units can be used when there is a fixed exhaust load and it is desired to utilize the make-up air unit for heating when possible. These units are provided with a damper set consisting of a two-position burner by-pass damper and a return air damper. With this system, a fixed percentage of outside air is introduced into the building to offset the exhaust load, and the remainder of the air is recirculated through the unit to provide for heating. This system can also be used to handle two different exhaust loads, going to full outside air when both exhaust systems are running, and moving to a fixed amount of recirculated air when only one exhaust system is operating. The position of the two position fresh and return air damper can be controlled manually, with a time clock, or with exhaust fan interlocks. 80/0 loating amper Units This system is usually used when multiple exhaust loads must be handled by one make-up air unit. Properly sized, this system can accomplish both make-up air, and heating and ventilating requirements. n 80/0 make-up air system is most effective, and most economical when a building has a required minimum exhaust load of at least 0% of the air capacity of the unit, and also has varying exhaust loads throughout the day, depending on the number of processes being run. If the building does not have a minimum exhaust requirement (e.g., warehouses or other storage facilities), indirect-fired heating and ventilating equipment may provide a more economical heating system than a system designed with direct-fired equipment. With direct-fired 80/0 systems a minimum amount of outside air (0% min.) is always supplied to the building, and is mixed with recirculated room air (80% max.). set of modulating burner by-pass and return air dampers are controlled by means of a building air pressure switch, which allows the introduction of more outside air if the exhaust load of the building changes. The amount of make-up air is automatically and continually modified to meet the demands of the varying exhaust air loads.
M/M, MM, & MR/MR MK-UP IR UNITS STNR MO SRIPTIONS Single Speed 00% Make-Up ir Model Series M/M Standard 8 gauge uninsulated galvanized steel cabinet and enclosure for blower, burner, and gas and electrical controls. (Insulation and cabinet paint options are available.) abinet is designed for roof curb mounting, slab or rail mounting, and indoor suspended mounting. ll cabinets are supplied with four () full access service doors, and permanent lifting/mounting lugs. orizontal right hand straight discharge arrangement is standard. (Optional arrangements are available.) Model sizes 0 through 8 have a single WI blower wheel with spider bearings. (Optional pillow block bearings are available.) Model sizes 0 through 0 have a single WI blower wheel with pillow block bearings. Model sizes through 0 have twin WI blowers with pillow block bearings. lame supervision on standard models is accomplished with the use of a flame rod. (Ultraviolet flame supervision is available as an option.) Standard optional remote control panel includes a three position Summer/Off/Winter switch, main valve light and flame failure alarm light. (Other panels are available.) Units with motor horsepowers up to and including 0 h.p. are supplied as standard with adjustable motor sheaves. Units with motor horsepowers greater than 0 h.p. are supplied as standard with fixed drives. (Optional adjustable drives are available for motors over 0 h.p.) The standard control system is a Maxitrol System control system with discharge air temperature control. (Optional control systems are available.) IGUR. 00% Make-Up ir Units Single Speed O/. Inlet hood (opt.). Inlet dampers (opt.). urner. lower 00% S/ Two Speed 00% Make-Up ir, Model Series MM Standard 8 gauge uninsulated galvanized steel cabinet and enclosure for blower, burner, and gas and electrical controls. (Insulation and cabinet paint options are available.) abinet is designed for roof curb mounting, slab or rail mounting, and indoor suspended mounting. ll cabinets are supplied with four () full access service doors, and permanent lifting/mounting lugs. orizontal, right hand straight discharge arrangement is standard. (Optional arrangements are available.) Model sizes 0 through 8 have a single WI blower wheel with spider bearings. (Optional pillow block bearings are available.) Model sizes 0 through 0 have a single WI blower wheel with pillow block bearings. Model sizes through 0 have twin WI blowers with pillow block bearings. lame supervision on standard models is accomplished with the use of a flame rod. (Ultraviolet flame supervision is available as an option.) Standard optional remote control panel includes a three position Summer/Off/Winter switch, main valve light, a flame failure alarm light. motor speed selector switch or relay may be added (switch or relay must be specified). (Optional panels are available.) Units with motor horsepowers up to and including 0 h.p. are supplied as standard with adjustable motor sheaves. Units with motor horsepowers greater than 0 h.p. are supplied as standard with fixed drives. (Optional adjustable drives are available for motors over 0 h.p.). Two speed motors are not available below / h.p. as a standard option. The standard control system is a Maxitrol System control system with discharge air temperature control. (Optional control systems are available.) two speed motor and a two position fresh air burner by-pass damper must be added separately to the basic unit. (See two speed motor options on page.) IGUR. 00% Make-Up ir Units Two Speed O/ 00%. Inlet hood (opt.). Inlet dampers (opt.). urner. lower. urner by-pass damper S/
M/M, MM, & MR/MR MK-UP IR UNITS STNR MO SRIPTIONS Two Position 80/0, 70/0, 0/0, 0/0 Recirculating Units, Model Series MR/MR Standard 8 gauge uninsulated galvanized steel cabinet and enclosure for blower, burner, and gas and electrical controls. (Insulation and cabinet paint options are available.) abinet is designed for roof curb mounting, slab or rail mounting, and indoor suspended mounting. ll cabinets are supplied with four () full access service doors, and permanent lifting/mounting lugs. orizontal, right hand straight discharge, with bottom return air opening is the standard arrangement. (Optional arrangements are available.) Standard remote control panel includes a three position Summer/Off/Winter switch, main valve light, flame failure alarm light. damper position switch may be added (Switch must be specified). (Optional panels are available.) lame supervision on standard models is accomplished with the use of a flame rod. (Ultraviolet flame supervision is available as an option.) Model sizes 0 through 0 have a single WI blower wheel with pillow block bearings. Model sizes through 0 have twin WI blowers with pillow block bearings. Units with motor horsepowers up to and including 0 h.p. are supplied as standard with adjustable motor sheaves. Units with motor horsepowers greater than 0 h.p. are supplied as standard with fixed drives. (Optional adjustable drives are available for motors over 0 h.p.) The standard control system is a Maxitrol System control system with discharge air temperature control. (Optional control systems are available.) set of two-position fresh air burner by-pass and return air dampers must be added to the basic unit. (See two position 80/0, 70/0, 0/0 and 0/0 air flow options on page.) IGUR. Two-Position Recirculating Units 00% OUTSI IR N 0% RTURN IR 0% OUTSI IR N 0% RTURN IR O/ 00% R S/ O/ 0% R S/. Inlet hood (opt.). Inlet dampers (opt.). urner by-pass dampers. urner. Return air dampers. lower 0 % 0 % 80/0 loating amper Recirculating Units, Model Series MR/MR Standard 8 gauge uninsulated galvanized steel cabinet and enclosure for blower, burner, and gas and electrical controls. (Insulation and cabinet paint options are available.) abinet is designed for roof curb mounting, slab or rail mounting and indoor suspended mounting. ll cabinets are supplied with four () full access service doors and permanent lifting/mounting lugs. orizontal, right hand straight discharge with bottom return air opening is the standard arrangement. (Optional arrangements are available.) Model sizes 0 through 0 have a single WI blower wheel with pillow block bearings. Model sizes through 0 have twin WI blowers with pillow block bearings. lame supervision on standard models is accomplished with the use of a flame rod. (Ultraviolet flame supervision is available as an option.) IGUR. 80/0 Recirculating Units Standard remote control panel includes a three position Summer/Off/Winter switch, main valve light, flame failure alarm light, and a space temperature thermostat. (Optional panels are available.) Units with motor horsepowers up to and including 0 h.p. are supplied as standard with adjustable motor sheaves. Units with motor horsepowers greater than 0 h.p. are supplied as standard with fixed drives. (Optional adjustable drives are available for motors over 0 h.p.) The standard control system for all 80/0 units is a Maxitrol Series control system with a space temperature thermostat, and a discharge air temperature high/low limit sensor. set of floating (modulating) fresh air burner by-pass and return air dampers, modulating damper motor, and a building pressure damper position control switch must be added to the basic unit. (See variable air flow options on page.) O/ 00% 0% RTURN IR N 00% OUTSI IR R S/ O/ 0% 80% RTURN IR N 0% OUTSI IR R S/. Inlet hood (opt.). Inlet dampers (opt.). urner by-pass dampers. urner. Return air dampers. lower 0 % 80 %
M/M, MM, & MR/MR MK-UP IR UNITS MO NOMNTUR M 0 UNIT TYP M = 00% Make-Up ir (0-8) M = 00% Make-Up ir (0-0) MM = 00% Make-Up ir - Speed MR = resh & Return ir (0-8) MR = resh & Return ir (0-0) OWR SIZ N QUNTITY 0 = () 0" lower 0 = () 0" lowers etc. UNIT ONIGURTION = orz. Right and, Straight isch. (RS) = orz. eft and, Straight isch. (S) = orz. Right and, ottom isch. (R) etc. (See configurations below) T 7. General Performance ata M Max llowable Max Temp Rise llowable Model Size ➃ M/M MR/MR MM tu/r➀ Natural Propane Min Max Max igh Speed Gas Gas ➁➂ M/MM/MR 0,00,00,000,800 -,00 0,80 0-.8 M/MM/MR,000,700,00,00 -,700 8,70 0-.0 M/MM/MR,000,00,000,00 -,00 807,00 0-. M/MM/MR 8,00 0,000,000 7,000-0,000,,000 0-.0 M/MM/MR 0,000,00,000,000 -,00,7,0 0-.0 M/MM/MR 8,000,00,000,000 -,00,0,00 0-.0 M/MM/MR 0,000,00 0,000 8,000 -,00,70,00 0 0-.0 M/MM/MR 7,000,000,000,000 -,000,00,0 8 0-. M/MM/MR 0,000 0,000 8,000,000-0,000,,000 0-.7 M/MM/MR,000,000,000,000 -,000,,00 0-. M/MM/MR 8,00 8,00 7,000,000-8,00,7,800 0-.0 M/MM/MR 0 8,000 7,000,000,000-7,000,,080 0-.0 M/MM/MR,000,000,000,000 -,000,8,0 0-.0 M/MM/MR 0,000,000,000 7,000 -,000,7,00 0-.0 M/MM/MR 0,000 0,000,000 0,000-0,000 7,8,000 0-.7 ➀ Maximum tu/r based on maximum unit M @ max air temp rise and -0 entering air. ctual max tu/r may be lower depending on job conditions ➁ Total Static Pressure Range = Internal Static Pressure for accessory items + xternal Static Pressure for ductwork. ➂ Maximum Static Pressure not available at all M s. See reeze Selection Software for available static. ➃ T ertified Max llowable ischarge ir = 0. IGUR 7. Unit onfigurations ➄ Total Static Press Range Inches W.. = RS = S = R = G = VTS J = VTR = RT = T enotes direction of air flow ➄ ➅ onfigurations are shown facing the side of the unit with the gas and electrical controls. or models with return air (Series MR/MR). 7
M/M, MM, & MR/MR MK-UP IR UNITS MO & P STION GUI T 8. Median ccessory Static Pressures (Inches W..) ccessory static pressure losses are approximate values only. Please consult the Modine reeze Selection Software for static pressure losses at other than median M. V-ank ilter Inlet ood ischarge ischarge Median Inlet ischarge w/ leanable w/ leanable Inlet ood ouver ouver Size M amper amper ilters ilters w/o ilters -way -way 0/ 000 0.0 0.0 0.0 0.08 0.0 0.07 0.0 /8 000 0.0 0.07 0.7 0.0 0.0 0.08 0.07 0/ 000 0.0 0.0 0. 0.08 0.0 0.07 0.0 T 8. Model & P Selection Guide 8 TOT XTRN STTI PRSSUR (Inches W..) ➀ Size M 0. 0. 0.7... MOTOR ORSPOWR 00 / / 800 / / 0 000 / / / 0 / / / / / 00 / / / (.") 70 / / 000 (.") 00➁ 000 / 00 / / / 000 / / / 00 000 00 700➁ 000 00 / / / 000 / 00 000 00 (.") 000 00➁ 00 / 000 / / 000 8 000 7000 7 / 7 / 7 / 8000 7 / 7 / 7 / 7 / 0 000 7 / 7 / 7 / 7 / 7 / 0 0 0 0000➁ 7 / 7 / 0 0 0 0 000 7000 8000 0 000 7 / 7 / 0000 7 / 7 / 7 / 7 / 0 000 7 / 7 / 7 / 7 / 7 / 0 0 000 7 / 7 / 7 / 0 0 0 000 7 / 0 0 0 0 00➁ 0 0 0 8000 000 0000 7 / 7 / 7 / 000 7 / 7 / 7 / 7 / 000 7 / 7 / 7 / 7 / 0 0 0 000 7 / 7 / 7 / 0 0 0 000 7 / 0 0 0 000 0 0 0 000 0 0 0 00➁ 0 0 ➀ The horsepowers shown are calculated using SP only. ny accessories included must be added to this static pressure. Unit internal resistance has been included in the horsepower tables above. ll data subject to change. ➁ This M is not available for MR/MR Units.
M/M, MM, & MR/MR MK-UP IR UNITS MO & P STION GUI T. Median ccessory Static Pressures (Inches W..) ccessory static pressure losses are approximate values only. Please consult the Modine reeze Selection Software for static pressure losses at other than median M. V-ank ilter Inlet ood Inlet ood ischarge ischarge Median Inlet ischarge w/ leanable w/ leanable w/o ilters ouver ouver Size M amper amper ilters ilters ➀ -way -way /7 8000 0.0 0.0 0.0 0. 0.0 0.0 0.0 0 000 0.0 0.08 0. 0. 0.0 0.0 0.08 ➀ Maximum allowable M for a /7/0 with an Inlet ood w/ilters is,800 M. T. Model & P Selection Guide TOT XTRN STTI PRSSUR (Inches W..) ➁ Size M 0. 0. 0.7... MOTOR ORSPOWR 0000 000 000 000 7 / 7 / 000 7 / 7 / 7 / 0 000 7 / 7 / 7 / 0 0 0 000 7 / 7 / 0 0 0 7000 7 / 0 0 0 8000 0 0 0 0 000 0 0 0 0 0000 0 0 0 0 000➂ 0 0 0 00➂ 0 0 0 000 000 000 000 7 / 000 7 / 7 / 7000 7 / 7 / 7 / 0 7 8000 7 / 7 / 0 0 0 000 7 / 0 0 0 0000 0 0 0 000 0 0 0 000 0 0 000 0 0 0 000 0 0 0 000➂ 0 0 0 000➂ 0 0 0 0 000 000 000 7 / 7000 7 / 7 / 8000 7 / 7 / 7 / 000 7 / 7 / 0 0 0000 7 / 7 / 0 0 0 000 7 / 0 0 000 0 0 0 000 0 0 000 0 0 0 000 0 0 0 000 0 0 7000 0 0 0 8000 0 0 0 0 000➂ 0 0 0 0 0000➂ 0 0 0 0 ➁ The horsepowers shown are calculated using SP only. ny accessories included must be added to this static pressure. Unit internal resistance has been included in the horsepower tables above. ll data subject to change. ➂ This M is not available for MR Units.
M/M, MM, & MR/MR MK-UP IR UNITS MO & P STION GUI T 0. Median ccessory Static Pressures (Inches W..) ccessory static pressure losses are approximate values only. Please consult the Modine reeze Selection Software for static pressure losses at other than median M. V-ank ilter Inlet ood ischarge ischarge Median Inlet ischarge w/ leanable w/ leanable Inlet ood ouver ouver Size M amper amper ilters ilters w/o ilters -way -way /8 000 0.0 0.08 0. 0. 0.0 0.0 0.08 0/ 000 0.0 0.0 0. ➀ 0.0 0. 0.0 /0 000 0.0 0.0 0. ➁ 0.0 0.0 0.0 ➀ Maximum allowable M for a 0/ with an Inlet ood w/ ilters is,700 M ➁ Maximum allowable M for a /0 with an Inlet ood w/ ilters is,00 M T 0. Model & P Selection Guide 0 TOT XTRN STTI PRSSUR (Inches W..) ➂ Size M 0. 0. 0.7... MOTOR ORSPOWR 000 7 / 0000 7 / 7 / 7 / 000 7 / 7 / 7 / 7 / 7 / 0 000 7 / 7 / 7 / 7 / 0 0 0 000➃ 7 / 0 0 0 0 0 00 7 / 7 / 7 / 0 000 7 / 7 / 7 / 7 / 0 0 000 7 / 7 / 7 / 0 0 0 8 000 7 / 0 0 0 000 0 0 0 0 7000 0 0 0 0 8000➃ 0 0 0 800➃ 0 0 8000 7 / 7 / 0 0 0000 0 0 0 000 0 0 0 0 000 0 0 000 0 0 0 000 0 0 0 000 0 0 0 0 7000➃ 0 0 0 000 0 0 0 000 0 0 0 0 7000 0 0 0 0 8000 0 0 0 0 000 0 0 0 0 0 0000 0 0 0 0 000 0 0 0 0 000➃ 0 0 0 000➃ 0 0 0 0000 0 0 0 000 0 0 0 000 0 0 0 0 000 0 0 0 0 0 0 8000 0 0 0 0 0 0 0000 0 0 0 0 0 0 000 0 0 0 0 0 000 0 0 0 0 0 000 0 0 0 0 0 0 000 0 0 0 0 000 0 0 0 0 8000 0 0 0 0 0 0 0000 0 0 0 0 0 000 0 0 0 0 0 0 000 0 0 0 0 0 0 0 000 0 0 0 0 0 0 0 8000➃ 0 0 0 0 0 0 0 0000➃ 0 0 0 0 0 0 ➂ The horsepowers shown are calculated using SP only. ny accessories included must be added to this static pressure. Unit internal resistance has been included in the horsepower tables above. ll data subject to change. ➃ This M is not available for MR units.
M/M, MM, & MR/MR MK-UP IR UNITS MNIO RRNGMNTS omponent isting uxiliary Gas Shut-Off Valve ombination Main Gas Valve igh and ow Gas Pressure Switch Main ir low Proving Switch Main Gas Pressure Regulator Main Gas Shut-Off Valve 7 Main Gas Valve 8 Modulating Valve Motorized Main Gas Valve 0 N/ Orificed Pilot Needle Valve Pilot Gas Pressure Regulator Pilot Gas Shut-Off Valve Pilot Gas Valve Plugged Test Port Redundant Main Gas Valve igure. Standard, IRI, & M rrangement Up to 00,000 tu/r STRT O TORY URNIS N PIP OMPONNTS * STRT O TORY URNIS N PIP OMPONNTS,,,, * Required and field installed when gas pressure exceeds " wc (/ psi) igure. Standard, IRI, & M rrangement Over 00,000 up to 70,000 tu/r 8 8 *, * Required and field installed when gas pressure exceeds " wc (/ psi) igure. Standard & IRI rrangement Over 70,000 tu/r M (ess & With Restriction) Up to,00,000 tu/r STRT O TORY URNIS N PIP OMPONNTS 7 8 T. ield Gas Supply onnections (or Natural Gas) 8"-" W.. Supply Pressure iring Rate - M onnection Size 7 /" 0 " 00 /" 7 /" 00 " 7 /" 0 " - PSIG Supply Pressure iring Rate - M onnection Size 0 /" 000 " 0 /" 7 /" 0 " 70 /" igure. M (ess & With Restriction) Over,00,000 tu/r STRT O TORY URNIS N PIP OMPONNTS ➀ ➁ or M ess Restriction: 8 ➀ Solenoid Valve replaces Motorized Valve ➁ Not Required
M/M, MM, & MR/MR MK-UP IR UNITS VRI IR OW OPTIONS ➀ ➁ Two Speed Motor Option 800/00 RPM Model MM 00% Make-Up ir Units Only (Requires two-speed motor option) This option is used in conjunction with two-speed motors. Includes: a two-position outside air burner bypass damper and damper motor, a manual i/o speed selector switch mounted on any optional remote control panel. ( remote control panel must be selected separately.) separate inlet or outlet damper must be selected if 00% positive outside air shut off is required. When ordering, specify ontrol Type. ontrol Type Standard Sequence of Operation: When power is supplied to the make-up air unit, the fan runs on i or o speed depending where the manual i/o speed selector switch is set. The firing rate of the burner is dependent on the type of gas control system selected. ontrol Type Sequence of Operation With i/o Speed xhaust an Interlocks: Includes the addition of three optional interlock relays in lieu of the manual i/o speed selector switch. The operation of the unit is dependent on exhaust load demands. If no exhaust fans are running, the unit is off. If one exhaust fan is energized, power is supplied to the unit and the fan runs on low speed. If a second exhaust fan is energized, the interlocking relay runs the fan at high speed. Two Position Mixed ir ontrol Return ir/resh ir Percentages: 80/0, 70/0, 0/0, or 0/0 Model MR/MR resh & Return ir Units Only Includes: two-position fresh air burner bypass damper and return air damper, a two-position damper motor, and an occupied/unoccupied manual control switch mounted on any optional remote control panel. ( remote control panel must be selected separately.) When ordering, specify ontrol Type. ontrol Type Standard Sequence of Operation: The fan runs continuously and the burner firing rate is dependent on the type of gas control system selected. The position of the outside air burner bypass damper and return air damper is determined by the setting on the manual occupied/unoccupied switch. In the occupied mode, 00% outside air is delivered to the unit. In the unoccupied mode, the outside air burner bypass damper is closed and the remainder of the air is supplied to the unit via the return air dampers. ontrol Type Sequence of Operation with Occupied/ontinuous an, Unoccupied/Intermittent an ontrolled by a Manual Switch and Night Set ack Thermostat: Includes the addition of a fan relay and night set back thermostat. In the occupied mode, the fan runs continuously and the two-position damper is set to supply 00% outside air to the unit, and the burner firing rate is controlled by the occupied thermostat setting, or discharge air temperature setting depending on which gas control system has been selected. In the unoccupied mode, the fan runs intermittently and the outside air burner bypass damper is closed, providing maximum return air during unoccupied hours. t the same time, the burner firing rate is switched over for control by the night set back thermostat. ontrol Type Sequence of Operation with Occupied/ontinuous an, Unoccupied/Intermittent an ontrolled by a Time lock and Night Set ack Thermostat: Includes the addition of a time clock (in lieu of occupied/unoccupied manual control switch), fan relay, and night set back thermostat. In the occupied mode, the fan runs continuously and the two-position damper is set to supply 00% outside air to the unit, and the burner firing rate is controlled by the occupied thermostat setting, or discharge air temperature setting depending on which gas control system has been selected. In the unoccupied mode, the fan runs intermittently and the outside air burner bypass damper is closed, providing maximum return air during unoccupied hours. t the same time, the burner firing rate is switched over for control by the night set back thermostat. ➀ separate inlet or discharge air damper is required if 00% shut-off of outside air is required when the unit is not operating. ➁ Unit height of models 0 and and their inlet accessories increases from " to " when this option is selected.
M/M, MM, & MR/MR MK-UP IR UNITS VRI IR OW OPTIONS ➀ ➁ Series 0 loating Mixed ir ontrol Return ir/resh ir percentage: 80/0 Model MR/MR resh & Return ir Units Only Includes: Series 0 floating damper operator, an outside air burner bypass damper, a return air damper and a remote panel with room to outside air pressure control. ( separate system remote control panel must be selected separately.) When ordering, specify ontrol Type. ontrol Type Standard Sequence of Operation: The fan runs continuously and the burner firing rate is dependent on the type of gas control system selected. The building pressure control monitors the negative pressure in the building and adjusts the ratio of fresh to return air to maintain a constant building pressure. In this manner, this system can introduce more outside air when high exhaust demands are present and reduce the outside air to a minimum of 0% of the total air flow when exhaust loads are at a minimum. The damper operation is independent of the gas controls and will provide mixed air on demand even during summer ventilation. ontrol Type Sequence of Operation with Occupied/ontinuous an, Unoccupied/Intermittent an ontrolled by a Manual Switch and Night Set ack Thermostat: Includes the addition of an occupied/unoccupied manual control switch, two control relays and a night set back thermostat. In the occupied mode, the fan runs continuously, the burner firing rate is dependent on which gas control system has been selected, and the building pressure control monitors the negative pressure in the building and adjusts the ratio of fresh to return air to maintain a constant building pressure. In the unoccupied mode, the fan runs intermittently and the outside air burner bypass dampers are closed, providing maximum return air during the unoccupied hours. t the same time, the burner firing rate is switched over for control by the night set back thermostat. ontrol Type Sequence of Operation with Occupied/ontinuous an, Unoccupied/Intermittent an ontrolled by a Time lock and Night Set ack Thermostat: Includes the addition of a time clock, two control relays and a night set back thermostat. In the occupied mode, the fan runs continuously, the burner firing rate is dependent on which gas control system has been selected, and the building pressure control monitors the negative pressure in the building and adjusts the ratio of fresh to return air to maintain a constant building pressure. In the unoccupied mode, the fan runs intermittently and the outside air burner bypass dampers are closed, providing maximum return air during unoccupied hours. t the same time, the burner firing rate is switched over for control by the night set back thermostat. ➀ separate inlet or discharge air damper is required if 00% shut-off of outside air is required when the unit is not operating. ➁ Unit height of models 0 and and their inlet accessories increases from " to " when this option is selected.
M/M, MM, & MR/MR MK-UP IR UNITS GS ONTROS System (MXITRO) ischarge ir Temperature ontrol System is an electronic modulating discharge air temperature control system which utilizes a remote temperature dial for adjusting the discharge air temperature set point. discharge air sensor monitors the discharge air temperature and controls an electronic modulating gas valve which modulates the main burner gas flow to maintain the desired discharge air temperature. The temperature set point range for this system is -0 degrees. Note: Requires field mounting and wiring of discharge air sensor. When specifying this control system, the optional System Remote ontrol Station must be used. The System Remote ontrol Station includes a remote Temperature Set Point ial, a Summer/Off/Winter Selector switch, a Main Valve On light and a lame ailure larm light. (Optional remote stations are available.) This system can also be used with a room-temperature override. Standard ontrol Panel or Maxitrol Series System System (MXITRO) Space Temperature ontrol System is an electronic modulating room temperature control system which utilizes a modulating room thermostat to control the main burner firing rate based on the room air temperature set point. The room thermostat monitors the room air temperature and controls an electronic modulating gas valve which modulates the main burner gas flow to maintain the desired thermostat set point. The temperature set point range for this system is -0 degrees. This control system also includes a discharge air sensor which is used as a high and low temperature limit control. The discharge air sensor will prevent make-up air from being delivered to the space at temperatures which are below its set point, even if the room thermostat is satisfied and will prevent the room thermostat from over firing the burner when mild outdoor temperatures exist, and the maximum firing capacity of the burner is not required to achieve the desired winter design discharge air temperature. When specifying this control system, the optional System Remote ontrol Station must be used. The System Remote ontrol Station includes an electronic Modulating Room Thermostat, a Summer/Off/Winter selector switch, a Main Valve On light and a lame ailure larm light. (Optional remote stations are available.) Standard ontrol Panel or Maxitrol Series System imensions: 8" x "W x " ompatible ontrols (Maxitrol 00) uilding Management ontrol The compatible control system is an electronic modulating control system which utilizes a 0-0 Vdc or - 0 m input signal (by others) to control the discharge air temperature. The input signal to the electronic modulating gas valve is controlled by a discharge air sensor (by others) that is compatible with the building management system. n increase or decrease in the imensions: 0" x 8"W x " input signal modulates the main burner gas flow to maintain the desired discharge air temperature. Provided with this system is a discharge air sensor which is used as a high temperature limit control. The discharge air sensor will prevent make-up air being delivered to the space that is above the recommended operating limits. Note: This system requires a field supplied discharge air sensor that is compatible with the building management system.
M/M, MM, & MR/MR MK-UP IR UNITS UNIT N SSORY WIGTS IGUR. Unit and ccessory Weights UNIT PN VIW INT OO INT MPR V-NK ITR UNIT ISRG MPR ISRG OUVR ROO UR T. Unit and ccessory Weights W I G T S MO 0 8 0 7 0 8 0 0 UNIT ONY 0 00 800 80 00 7 7 80 0 0 80 00 0 7 INT OO 80 0 8 INT MPR 70 70 0 0 0 80 V-NK ITR 00 0 80 00 00 0 ISRG MPR 0 80 0 0 8 ISRG OUVR 80 0 8 0 " ROO UR 0 0 0 80 8 " ROO UR 80 7 0 80 8 0 0 0 0 0 7 0 70 7 780 WIGT 00 0 00 0 00 00 0 00 0 0 ISTRIUTION 0 00 0 70 0 80 0 0 7 0 0 0 0 0 0 7 0 70 7 780 VRI IR OW WIGT S RTURN IR O/ - R/ Y-PSS MPR 8 0 0 TWO SP O/ Y-PSS MPR 7 70 0 70 ITION OPTION UNIT WIGT S INTRN MTR/WR SPRNG VRTN ISOTN 0 0 7 0 0 7 VRTI UNIT WIGT S VRTI UNIT STRUTUR RNORMNT 0 0 0 0 - - - VRTI UNIT INT STN 70 80 - - - VRTI UNIT INT STN 8 7 0 0 - - - VRTI UNIT INT STN 7 0 0 0 - - - ll data subject to change.
M/M, MM, & MR/MR MK-UP IR UNITS M/MM/MR 0-8 IMNSIONS c c P - c () " I. OS OR VIRTION T/NGRS / / + + G Q OWR MOTOR / / GS MNIO OMPRTMNT TRI OMPRTMNT M VIWPORT c OPTION ISONNT SWIT () /" I. ITING OS SRVI SS OOR OT SIS c PIPING OMPRTMNT OUVR VNT ONNTION - GS ONNTION c R OPTION ISRG MPR / (Q) / (QR & QM) MPR MOTOR OPTION TR WY ISRG OUVR / / M M / P S TI '' S / / / J "TI " SING O.. OOR/S SING OOR/S O... J SIZ 0 8 ITRS IN OO () 0 x 0 x () 0 x x ITRS IN V-NK () 0 x 0 x () 0 x x I SUPPORT RQUIR Y OTRS OPTION ITR RRNGMNT OPTION INT OO WIT IRSRN / MPR MOTOR OPTION INT MPR K / ITR SS OOR OPTION V-NK ITR Outside air and recirculating units, single blower units, sizes 0-8 horizontal and bottom discharge. N / K / SIZ 0 8 / / 7 7 8 8 / / 8 / / / 7 /8 8 /8 /8 0 G 0 0 /8 /8 7 /8 7 /8 J / / K // / ➂ // / ➂ / / / / M 0 0 / / N 8 / 8 / /8 /8 P 0 0 Q R / ➁ / ➁ / / S / 7 / 8 /8 0 / Note: ll accessories shipped completely assembled for easy installation. Some accessories shipped separately. ll data subject to change. ll dimensions subject to manufacturing tolerances. MTRI GUGS: Unit asing: 8 gauge galvanized. Unit ase: (0-8) gauge galvanized. Rain ood: 8 gauge galvanized. V-ank: and 8 gauge galvanized. amper lades: 8 gauge galvanized. amper rame: gauge galvanized. ischarge ouvers: and 8 gauge galvanized. ➀ " for M models, " for MR models and MM models. ➁ /" for M models, /" for MR models and MM models. ➂ /" for M models, /" for MR models and MM models.
M/M, MM, & MR/MR MK-UP IR UNITS M/MM/MR 0-0 IMNSIONS P - () " I. ITING OS / / + + G Q GS MNIO OMPRTMNT OWR MOTOR TRI OMPRTMNT M VIWPORT / / OPTION ISONNT SWIT SRVI SS OORS OT SIS PIPING OMPRTMNT OUVRS VNT ONNTION GS ONNTION UNIT R / OPTION ISRG MPR MPR MOTOR / / OPTION TR WY ISRG OUVR M M / P S TI / / / S PN S RM TI SING / S J /8 / / S O.. SING O.. SIZ 0 7 0 ITRS IN OO () 0 x x () 0 x x () x x ITRS IN V-NK () 0 x x (0) 0 x 0 x (0) 0 x x Outside air and recirculating units, single blower units, sizes 0-0 horizontal and bottom discharge. I SUPPORT RQUIR Y OTRS OPTION ITR RRNGMNT N OPTION INT OO WIT IRSRN / / J MPR MOTOR OPTION INT MPR K / K ITR SS OOR OPTION V-NK ITR / SIZ 0 7 0 8 8 0 0 0 78 78 0 0 0 7 /8 7 /8 /8 /8 7 /8 7 /8 7 /8 /8 /8 7 /8 8 / 7 / / 0 / / G 7 7 7 / / / / / J / / K / / / / / / / / / / M N /8 /8 P 0 0 0 Q R / / / / / S / / / / / Note: ll accessories shipped completely assembled for easy installation. Some accessories shipped separately. ll data subject to change. ll dimensions subject to manufacturing tolerances. MTRI GUGS: Unit asing: 8 gauge galvanized. Unit hannel ase: (0-0) gauge galvanized. Rain ood: 8 gauge galvanized. V-ank: and 8 gauge galvanized. amper lades: 8 gauge galvanized. amper rame: gauge galvanized. ischarge ouvers: and 8 gauge galvanized. 7
M/M, MM, & MR/MR MK-UP IR UNITS M/MM/MR -0 IMNSIONS - () " I. ITING OS S / / P T OWR MOTOR R Q + + G P GS MNIO OMPRTMNT TRI OMPRTMNT M VIWPORT / / OPTION ISONNT SWIT SRVI SS OORS OT SIS PIPING OMPRTMNT OUVRS VNT ONNTION UNIT OPTION ISRG MPR GS ONNTION / / MPR MOTOR / M MOS -0 INT OO TO STIONS J SON MPR MOTOR (0 through 0 only) ITR SS OOR OT SIS / / / S PN S RM S TI SING / S TI U OPTION TR WY ISRG OUVR / /8 / / S O.. SING O.. M / SIZ 8 0 0 ITRS IN OO () 0 x 0 x () 0 x x () 0 x x () x x (8) 0 x x ITRS IN V-NK () 0 x 0 x () 0 x x (0) 0 x x () 0 x x I SUPPORT RQUIR Y OTRS OPTION ITR RRNGMNT Outside air and recirculating units, twin blower units, sizes -0 horizontal and bottom discharge N J OPTION INT OO WIT IRSRN / / MPR MOTOR OPTION INT MPR K / K OPTION V-NK ITR / SIZ 8 0 0 8 8 0 0 0 0 8 8 0 0 8 / 7 /8 7 /8 /8 7 /8 7 /8 7 /8 /8 7 /8 /8 0 / / 8 / / G 8 8 / / /8 /8 J / / K / / / / / / 8 8 88 88 0 0 M / / N /8 /8 /8 /8 P / / 8 / 8 / 8 / 8 / Q 8 8 8 8 0 0 R / 0 /8 /8 7 /8 /8 S 0 0 T 77 77 07 07 U 8 /8 0 / / / / / Note: ll accessories shipped completely assembled for easy installation. Some accessories shipped separately. ll data subject to change. ll dimensions subject to manufacturing tolerances. MTRI GUGS: Unit asing: 8 gauge galvanized. Unit hannel ase: (-8) gauge galvanized. (0-0) gauge galvanized. Rain ood: 8 gauge galvanized. V-ank: and 8 gauge galvanized. amper lades: 8 gauge galvanized. amper rame: gauge galvanized. ischarge ouvers: and 8 gauge galvanized. 8
M/M, MM, & MR/MR MK-UP IR UNITS M/M/MM/MR/MR IMNSIONS VRTI UNITS " I. ITING OS () /'' I. (0-8) Q P TRI OMPRTMNT / / GS MNIO OMPRTMNT S (SSORY RONT VIW) / R OPTION ISRG MPR MPR MOTOR / / OPTION TR WY ISRG OUVR T G M M / / / OWR MOTOR SRVI SS OORS OT SIS GS ONNTION OPTION INT IRSRN VNT ONNTION T PIPING OMPRTMNT OUVR UNIT IS TOP VY MUST NOR Y OTRS OPTION SUPPORT STN IGTS VI " 8" & 7" T ITR SS OOR 0-8: TIS SI ONY 0-0: OT SIS OPTION V-NK ITR SIZ 0 8 0 7 0 ITRS IN V-NK () 0 x 0 x () 0 x x () 0 x x (0) 0 x 0 x (0) 0 x x MPR MOTOR / K R R R / K OPTION INT MPR OPTION SUPPORT STN IGTS VI " 8" & 7" T SIZ 0 8 0 7 0 / / 78 78 7 7 8 8 0 0 0 / / 8 / 7 /8 7 /8 /8 /8 7 /8 / / 7 /8 7 /8 /8 /8 7 /8 7 /8 8 /8 /8 0 8 / 7 / / 0 / / G 0 0 7 7 7 /8 /8 7 /8 7 /8 / / / / / K / / / ➁ / / / ➁ / / / / / / / / / / / / / / M 0 0 / / P / 7 / 8 /8 0 / / / / / / Q 8 7 7 7 7 7 8 8 8 R / / 8 8 0 0 0 S T 0 0 0 0 0 Note: ll accessories shipped completely assembled for easy installation. Some accessories shipped separately. ll data subject to change. ll dimensions subject to manufacturing tolerances. MTRI GUGS: Unit asing: 8 gauge galvanized. Unit hannel ase: (0-0) gauge galvanized. V-ank: and 8 gauge galvanized. amper lades: 8 gauge galvanized. amper rame: gauge galvanized. ischarge ouvers: and 8 gauge galvanized. ➀ " for M models, " for MR models and MM models. ➁ /" for M models, /" for MR models and MM models.
M/M, MM, & MR/MR MK-UP IR UNITS ROO-UR IMNSIONS - SIZ 0-0 -/ -/ OOR/S SING GSKT WOO NIR or UR. 7/ / UR TI -/ -/ J RTURN -/ -/ S PN ISRG -/ S RM UR TI SING 7/8 or GSKT G or UR K WOO NI -/ -/ IR OW TYPI OR SIZ 0-8 TYPI OR SIZ 0-0 SIZ 0 8 0 7 0 UR I 7 / / 7 / / / 7 / / 7 / 7 / 0 / 7 / 0 / 8 / 0 / 8 / 0 / 8 / 0 / OPTION ISRG / / / / 8 / 7 /8 7 /8 7 /8 7 /8 /8 /8 /8 /8 7 /8 7 /8 / 7 / 7 /8 7 / 8 / / 0 / / / 7 /8 7 /8 8 7 /8 7 / / / / 8 / / G 7 /8 7 /8 8 7 /8 7 / 0 / 0 / / / / OPTION RTURN 0 0 0 0 0 J K 8 / 8 / 8 / 8 / / / / / / Gasket ength (eet) Weight " / " # / 80# # / 80# 0# / # 0# / # 0# / 7# 0# / 7# 0# / 0# 0# / 0# 0# / 0# ROO-UR IMNSIONS - SIZ -0 -/ -/ S PN UR TI SING S RM 7/8 GSKT -/ ISRG UR or -/ RTURN K G ISRG -/ or WOO NI -/ TYPI TYPI OR OR SING SIZ & -0 U N -/ J IR OW -/ -/ SIZ 8 0 0 UR I 88 / 7 / 88 / 7 / / 0 / / 0 / 8 / 0 / 8 / 0 / OPTION ISRG 8 / 7 /8 7 /8 7 /8 7 /8 /8 /8 7 /8 7 /8 7 /8 7 / 8 / / 0 / 8 7 /8 7 / / / / / G / 0 /8 /8 7 /8 /8 8 /8 7 / / 8 / / / OPTION RTURN J 0 0 K 77 77 07 07 8 / 8 / / / / / Gasket ength (eet) 0 0 8 8 Weight " / " 80# / 80# 80# / 80# 8# / 8# 8# / 8# # / 0# # / 0# 0
8 M/M, MM, & MR/MR MK-UP IR UNITS VPORTIV OOING OPTION GVNIZ ST INT OO SS OORS OT SIS STINSS ST VP OOR VP. MI N ISTRIUTION PS PRMNNT PR-ITRS O/ / " NPT I VV " NPT OVROW O/ 7 0 7 " NPT RIN 0 /8 WTR N RIN ONNTIONS SI VIW RONT VIW (ISRG N) SI VIW Model Size Used With 0 8 0 7 0 8 0 0 8 8 0 0 8 8 08 08 08 80 80 7 7 7 7 7 8 8 7 7 8 8 7 7 88 88 88 0 0 0 0 vaporative ooler " Pre-ilters " vaporative Media " ist. Pad Weight (bs.) 7 7 Qty M Range Min. Max.,00,00,000,700,000,00,00 0,000,000,00 8,000 0,000,000,000,000,00 8,000,000 0,000,000,00,00,000 0,000,000 8,00 7,000,000,000 0,000 Qty 8 8 7 7 Size ( x ) x 0 x 0 0 x 0 x 0 x 0 x 0 0 x 0 x 0 0 x 0 x 0 0 x x 0 x x x 0 x x 0 x x 0 0 x 0 x 0 0 x 0 0 x 0 x 0 0 x 0 x 0 Max. Vel. (PM) 8 80 8 7 78 0 0 0 ace Sq. t... 0.8 0.8.00.00.00.... 0.00 0.00 0. 0. Qty 7 7 8 8 Size (W x ) x x x 8 x 8 x 0 x 0 x 0 x 7 x 7 x 8 x 8 x 0 x 0 x 7 x x 7 x Max. Vel. (PM) 7 00 8 7 78 8 0 78 0 0 8 7 ace Sq. t. 0 0 0 0 0 0 Qty Size (W x ) x 8 x 8 x 0 x 0 x 0 x x 0 x x 8 x 0 x 8 x 0 x 8 x 0 x 8 x 8 x 7 x 7 x 0 x 0 vap. Ship. 0 0 7 8 8 0 0 0 0 7 7 ooler Oper. 70 70 0 0 0 0 0 0 0 8 8 70 70 ood dd. 7 7 0 0 0 0 0 0 0 7 7
M/M, MM, & MR/MR MK-UP IR UNITS TYPI SPIITIONS - MOS M/M, MM, N MR/MR IRT-IR UNITS General ontractor shall furnish and install Modine irsystems model(s) M/M 00% outside air direct-fired unit(s), MM 00% outside air two speed direct-fired unit(s) MR/MR Outside & Return ir direct-fired unit(s) with the performance as indicated on the equipment schedule shown in the plans. ll units shall be T certified to NSI Z8.8 Unit asing & onfiguration The unit casing shall be constructed from minimum 8 gauge galvanized steel and designed for indoor, outdoor installation. The unit base shall be constructed of minimum gauge galvanized steel and shall be designed for rail, slab, or roof curb mounting. The casing roof shall be designed with a rain drip edge to prevent water from entering the unit. The unit(s) shall include four service access doors (two on each side). ach door shall have a minimum of two tooled access draw tight fasteners. Gas piping and electrical controls shall be mounted in separate enclosures and these enclosures shall have independent service access doors. The blower motor and drives shall be accessible through an access service door. ach unit shall include a minimum of four factory installed lifting lugs for handling and installation. In addition to the basic unit cabinet, the following factory assembled unit accessories and options shall be included when checked. Inlet Rain ood with ird Screen (horizontal units only) with, without filters Inlet hood to be constructed of minimum 8 gauge galvanized steel and shall be shipped from the factory fully assembled. The maximum air inlet velocity shall not exceed 70 fpm for hoods without filters, and 0 fpm for hoods with filters. When the inlet hood is supplied with filters, the filters shall be " permanent washable aluminum filters. Motorized resh ir Inlet amper onstructed of minimum gauge galvanized steel damper frames and minimum 8 gauge galvanized steel damper blades. V-ank filter section with " permanent aluminum, 0/0 RR, Throw--Way filters The maximum air velocity through the filters shall not exceed 0 fpm. The V-ank filter section shall be constructed from minimum 8 gauge galvanized steel and shall be completely factory assembled. Motorized ischarge ir amper amper shall be constructed from minimum gauge galvanized steel for the damper frames and minimum 8 gauge galvanized steel for the damper blades. ischarge ir ouver ischarge louver shall be constructed from minimum 8 gauge galvanized steel. achlouver shall have horizontally adjustable air deflection blades for maximum field adjustment. The discharge air louvers shall be: Three-Way nd ischarge our-way ottom ischarge Support stand for vertical unit(s) Support stand height shall be inch, 8 inch, 7 inch. The support stand shall be completely factory assembled prior to shipment. The stand requires, does not require an inlet screen. ir-dried gray industrial enamel paint for added corrosion protection on: lower & urner abinet Inlet Rain ood Inlet ir amper V-ank ilter Section ischarge ir amper The following items shall be supplied with ", -/ pound-density insulation: lower abinet urner abinet V-ank ilter Section factory supplied prefabricated ", " roof curb shall be provided The roof curb shall be constructed of corrosion resistant galvanized steel with the following minimum gauges based on the unit size. Model Sizes 0-8, -8 Minimum Gauge Model Sizes 0-0, 0-0 Minimum Gauge lower(s) and Motor The basic unit shall include one, two forward curbed WI blower(s) properly sized to supply cfm against a total static pressure of " wc using a hp motor. The total static pressure shall include allowances for a minimum pressure drop of " wc for field connected ductwork, excluding the pressure drop for factory supplied accessories. The blower motor shall have the following characteristics. Open rip Proof, Totally nclosed Standard fficiency, igh fficiency Single Speed 800/00 Two Speed V/0z/ø 08V/0z/ø, 0V/0z/ø 08V/0z/ø, 0V/0z/ø 0V/0z/ø 7V/0z/ø Units having motor horsepower of 0 hp or below shall be provided with adjustable motor drive sheaves. Units with motor horsepower greater than 0 hp shall have fixed, adjustable motor drive sheaves. ll units with three phase motors shall be provided with a factory installed and wired motor starter with, without an auxiliary starter contact. Units with a single blower shall have minimum internal side wall clearances (including insulation) of not less than one half of the blower wheel diameter. Units with twin blowers shall have minimum internal side wall clearances (including insulation) of not less than one half of the blower wheel diameter, and a distance between the blowers of not less than one blower diameter. xtend blower bearing grease line are, are not required. Gas ontrols ll gas controls shall be designed for use with natural, propane gas using an inlet supply pressure of " wc, psig. or units with Volt controls, with inlet gas pressures between - PSIG a separate factory supplied regulator shall be included. or inlet gas pressures greater than PSIG a separate factory supplied gas regulator shall be included. When checked, the gas controls shall comply with the following insurance requirements. M ess Restriction M With Restriction IRI The standard gas controls and manifold system shall include, at a minimum, a main gas hand shut-off valve, hand shut-off valve, pilot gas hand shut-off valve, main gas regulator, pilot gas regulator, main gas solenoid valve, redundant main gas solenoid valve, pilot gas solenoid valve, modulating gas valve, and three gas pressure test ports.
M/M, MM, & MR/MR MK-UP IR UNITS TYPI SPIITIONS - MOS M/M, MM N MR/MR IRT-IR UNITS Ignition and Safety ontrols The unit(s) shall be supplied with intermittent pilot ignition with 00% lockout on flame failure with a manual reset. These controls shall include, at a minimum, a flame safeguard control, spark pilot ignitor generator, high temperature limit control, primary and secondary electrical circuit fuses, air flow proving switch, and a safety prepurge timed delay relay. Temperature ontrols ach unit shall be supplied with a remote control panel having a general purpose, NM enclosure and compatible with the temperature control system specified. The unit(s) shall be supplied with the control system as checked below. System (Maxitrol) lectronic Modulating ischarge ir Temperature controls shall be provided. This system shall include a remote temperature dial for adjusting the set point of the discharge air temperature sensor. The discharge air sensor shall monitor the discharge air temperature and modulate the firing rate of the main burner to maintain the desired discharge air temperature. The temperature range of the remote temperature dial shall be -0. room temperature override thermostat which acts as a room temperature low limit stat is, is not to be provided. System (Maxitrol) lectronic Modulating Room Temperature controls shall be provided. This system shall include a modulating room thermostat to regulate the firing rate of the main burner based on space temperature thermostat demand. The temperature set point range of the room thermostat is to be -0. This system is also to include a discharge air sensor which serves as a high and low temperature limit. The discharge air sensor will prevent make-up air from being delivered to the space at temperatures which are below its set point, even if the room thermostat is satisfied, and willprevent the room thermostat from over-firing the burner when mild outdoor temperatures exist, and the maximum firing capacity of the burner is not required to achieve the desired winter design discharge air temperature. compatible controls (Maxitrol 00) lectronic Modulating controls shall be provided. The system shall include and electronic modulating control system which utilizes a 0-0 Vdc or -0 m input signal (by others) to control the discharge air temperature. The input signal to the electronic modulating gas valve is controlled by a discharged air sensor (by others) that is compatible with the building management systems. n increase or decrease in input signal modulates the main burner gas flow to maintain the desired discharged air temperature. Provided with this system is a discharged air sensor which is used as a high temperature limit control. The discharged air sensor will prevent make-up air being delivered to the space that is above the recommended operating limits. lectrical The unit(s) shall be completely factory wired to provide for single point wiring for the main power supply to the unit. Supply voltage to the unit shall be: V/0z/ø, 08V/0z/ø 08V/0z/ø, 0V/0z/ø 0V/0z/ø 0V/0z/ø, 7V/0z/ø The main control panel shall include a number terminal strip for all factory wiring and field wiring connections. The unit(s) shall also include a factory mounted and wired control transformer as required to provide a completely prewired unit with the exception of accessory temperature control devices and remote control station and damper operates when these accessories are shipped separately. Units which must be split shipped because of their physical size shall have electrical wire connections tagged and numbered for ease of reconnection during installation. The unit(s) shall be provided with the following main power disconnect switch when checked. Indoor ield Mounted General Purpose isconnect Outdoor ield Mounted NM R isconnect Indoor/Outdoor actory Mounted ead ront isconnect The following additional controls or electrical devices shall be supplied when checked. igh Gas Pressure Switch ow Gas Pressure Switch irty ilter ight & Pressure Switch reeze Protection with utomatic Timed elay ire Stat xhaust an Interlock Interlocking Relay Mild Temperature Inlet On/Off uct Stat dditional Switch on Remote ontrol Panel dditional ight on Remote ontrol Panel dditional urner igh imit Substitute Motorized Main Gas Valve Proof of losure Switch for Motorized Valve 0 Point ircuit nalyzer Point ircuit nalyzer Point ircuit nalyzer 7 ay Time lock 7 ay Time lock with Set ack Thermostat igital 7 ay Time lock with attery arryover igital 7 ay Time lock with attery arryover and Night Set ack Thermostat Night Set ack Thermostat Room Override Thermostat uilding oor Switch larm orn with Silencing Switch Unit Service oor lectrical Interlocks Service Receptacle Service Receptacle with ight & ight Switch ood/v-ank Support Installation ontractor is to install units according to manufacturers published installation instructions, NSI Z. (also known as NP National uel Gas ode), and in accordance with all local codes. fter installation, installer is to perform a complete start-up check as recommended by the manufacturer. copy of the start-up report shall be left with the owner, and one copy sent to the manufacturer.