E L E CT R I C DUCT HEATER FLIPPABLE EK SERIES SHOWN RH SERIES RH-W SHOWN RENEWAIRE ERV + ELECTRIC DUCT HEATER: A SINGLE-SOURCE SOLUTION RENEWAIRE EVERYWHERE EVERY GEOGRAPHY, EVERY CLIMATE, EVERY HOME, EVERY BUILDING AND EVERY APPLICATION
RH SERIES ELECTRIC DUCT HEATER RH-D (Integral Thermostat) NEW Electric Dct Heater (1-11.5 kw) Accessory SPECIFICATIONS Heater Type: Electric Dct Heater Typical KW Range: 1 11.5 kw (1, 2, 3, 4, 5, 6, 8, 10, 11.5 kw) Voltages & Phase: Single phase - 120, 208 and 240V Control Voltage: 24 VAC Standard Featres: Open-coil element High grade nickel-chrome element wire Thermostat - Integral (RH-D), Wall mont (RH-W) Modlating heat otpt (SCR control) Vertical or horizontal operation Atomatic limit switch for primary Manal reset limit switch for secondary Airfl ow sensor Standard control transformer - 24 VAC Corrosion resistant galvanized steel Rond dct collars High voltage terminal block connections Gronding lg Monting fl anges LR 30551 Note: Electric dct designed for indoor dctwork installation only. Dct Collars kw V Size Width (X) Height (Y) Depth (Z) 6" 1, 2 120, 208, 240 A 11 1/2" 8" 11 1/2" 8" 3, 4, 5 208 B 11 1/2" 10" 13 1/2" 8" 3, 4, 5, 6 240 B 11 1/2" 10" 13 1/2" 10" 3, 4, 5 208 B 11 1/2" 10" 13 1/2" 10" 3, 4, 5, 6 240 B 11 1/2" 10" 13 1/2" RH-W (Wall Mont Thermostat) 10" 8, 10, 11.5 240 C 15 1/2" 12" 15 1/2" 12" 6, 8, 10, 11.5 240 C 15 1/2" 12" 15 1/2" Download specification at: renewaire.com/specifications Y Z X A B C DIMENSIONS IN INCHES SIZE X Y Z A 11.5 8.0 11.5 B 11.5 10.0 13.5 C 15.5 12.0 15.5 Minimm Airflow (CFM) Heater Capacity (kw) 30 1.00 60 2.00 90 3.00 120 4.00 150 5.00 180 6.00 240 8.00 HEATER CAPACITY - kw 13 12 11 10 9 8 7 6 5 4 3 2 1 0 RH SERIES HEATER CAPACITY SAFE OPERATING RANGE 30 60 90 120 150 180 210 240 270 300 330 360 500 750 1000 AIRFLOW - CFM 300 10.00 345 11.50 Specifi cations may be sbject to change withot notice. 2
E L E C T R I C D U C T H E AT E R ( 1-1 7 5 K W ) RenewAire offers the highest-efficiency Energy Recovery Ventilators (ERVs) on the market. However, dring winter conditions, spply air from the ERV may be less than optimal for space conditions. By adding C O N F I G U R A B L E E L E C T R I C D U C T H E AT E R S as an option to or commercial ERVs, RenewAire can now heat spply air dring cooler months to enhance indoor comfort, all via one package for ERVs and s from a single sorce. KEY BENEFITS S T A N D A R D F E AT U R E S pen-coil element with slip-in O mont installation A irflow switch D ct stat and dct sensor isconnect switch, control terminal D board and transformer Power fsing over 48 amps inclded G ronding lgs L eft-hand offset control box A disconnecting magnetic control contactor per stage or each 48-amp circit within a stage A tomatic limit switch for primary anal reset limit switch for secondary M T he wire rack element sspension system allows for a low-pressre drop across the coils with its aerodynamic design I n horizontal applications, airflow can travel in either direction withot any modification, allowing for easy field modifications ontrol-box featres hinge and latch C for easy access OPTIONS AND ACCESSORIES A single-sorce responsibility redces time and costs: A single information sorce, a single prchase point and a single approval package for ERVs and s redces design time and costs, and streamlines logistics for design engineers and contractors. E asy installation: A ZERO clearance rating to combstibles allows designers and contractors to apply RenewAire s with less restrictions onsite. E LECTRONIC STEP CONTROLLER Provides electronic seqencing control of an electric dct p to 4 steps. When interrption of power occrs, all the stages will recycle to off. Upon the restoration of power, re-energize the switches in a stepping seqence. Commonly sed with a 2 10 vdc from a stand-alone T-stat, 2-10 vdc from a DDC bilding atomation system and 4-20 ma from a bilding atomation system. P ILOT LIGHTS H ighly certified: UL Listed (UL1996 Standard) and CSA certified. Side-panel installation for indicating is energized. Control voltages are available as 24 or 120 volts. S CR CONTROLS INSTALLATION SCRs MANUAL provide the finest in electric dct control with 100% step-less modlating INSTALLATION MANUAL control. Utilizes Solid State Relays (SSR) to switch crrent to the heating elements on a TUTCO time-proportioned basis. Heaters with SCR controls have internal thermal protection to TUTCO DUCT DUCT HEATERS HEATERS prevent overheating. A P P L I C AT I O N S RenewAire ERV and combinations can be applied anywhere ERVs are installed, with a focs on commercial and instittional bildings. However, VRF systems, hydronic panels and areas where non-dcted systems are applied offer an exclsive installation opportnity. RenewAire s can sit site restrictions in size, configration or orientation, and can be designed for preheat capabilities in certain extreme weather conditions. The information and instrctions in this sheet apply to Dct Heater The information and instrctions in this sheet apply to Dct Heater models for zero clearance installation in dcts. models for zero clearance installation in dcts. The Dct Heaters are approved for se with heat pmps, air The Dct Heaters are approved for se with air conditioners, or other forced air systems. Theyheat maypmps, be controlled by conditioners, or other forced air They may be controlled by contactors, relays, seqencers orsystems. solid state devices. contactors, relays, seqencers or solid state devices. The Dct Heaters are prewired, have voltage ratings to 600 volts, both The Dct Heaters are phase. prewired, have voltage ratings to 600 volts, both single phase and three single phase and three phase. The Dct Heaters are frnished with integral controls, except for the DD Heaters integral controls, except forfor the DD & The DHDDct series, whichare arefrnished frnishedwith with a separate control panel & DHDmonting. series, which are frnished with a separate control panel for remote remote monting. GENERAL: GENERAL: Inspect for any possible shipping damage. Check all inslators Other applications inclde existing installations that reqire additional heat, increased heat or simply replacement s. RenewAire s can be designed for 75 F comfort conditions, or warmer, and since ERV spply air is dcted into the space, tempering otdoor air for space conditions or offering spplemental heat is easy and simple. any possible shipping wire damage. Check all inslators forinspect breakage andfor inspect element for any deformation that for breakage and inspect element deformation that cold case a short circit or grond. Makewire sreforallany fasteners are tight. cold case a short circit or grond. sre all fasteners are tight. Electrical connections sch as pressremake terminals shold be checked for Electrical connections sch as pressre terminals shold be checked for tightness. tightness. INSTALLATION: INSTALLATION: For safe operation and best performance, the following installation For safe operation best to. performance, the following installation procedres mst be and adhered procedres mst be adhered to. Heaters may be installed in the sides of either horizontal or vertical Heaters may be installed in the sides of either horizontal or vertical dcts bt never in the top or bottom of a horizontal dct. Heaters dcts bt never in the top or bottom of a horizontal dct. Heaters installed in vertical dcts are tested and approved for p airflow only! installed in vertical dcts are tested and approved for p airflow only! C O N S T R U C T I O N A N D I N S T A L L AT I O N RenewAire s have been designed to match or existing prodct offering heat capacities that range from 1 175 kw and the ability to handle airflows from 200 11,000 CFM. Or s are factory-assembled and wired for the electrical specialties and controls of each project, and can be installed as a slip-in or flanged configration. The s are shipped loose, can be dct-installed onsite and are designed for post-installation if necessary. Heaters are wired with a separate power sorce to be placed anywhere downstream of the ERV orinstallation to be split to servemanual different areas with a single ERV. TUTCO DUCT HEATERS FLANGE INSTALLATION 1.Install a a minimm of (4) feet from heat pmps or central air The information and by instrctions in thisthe sheet applybetween to Dct Heater Installed connecting two sections 1.Install a a minimm of (4) feet from heat pmps or central air conditioners. models for zero clearance installation in dcts. conditioners. RenewAire s are for indoor se only. 2. At least 4 feet downstream from an air handler. 2. At least 4 feet downstream from an air handler. 3.3. least2 2feet feeteither eitherside sideofofan anelbow elboworortrn. trn. The Dct Heaters are approved for se with heat pmps, air conditioners, or other forced air systems. They may be controlled by DOUBLE contactors, relays, seqencers or solid state devices. LIP MODELS RenewAire EK s can be rotated 180, and are capable of vertical p/down airflow. 5.5. least4 4feet feetdownstream downstreamfrom froman anair airfilter. filter. Refer Refertotothe theback backofofthis thissheet sheetfor: for:dct, dct,electrical electricaland andair airvelocity velocity reqirements. reqirements. (FLIPPABLE) CAPACITY 3 1-175 kw MIN. DUCT SIZE (H x W) 8" x 8" MAX. DUCT SIZE (H x W) 99" x 99" EK SERIES SCR HEAT SINKS CONTACTOR AIRFLOW FRAME FRAME GENERAL: ELEMENTS Interior shown CERAMIC MOUNTING COILS The Dct Heaters are frnished with integral controls, except for the DD & DHD series, which are frnished with a separate control panel for remote monting. Inspect for any possible shipping damage. Check all inslators for breakage and inspect element wire for any deformation that ToTo install installa aslip-in slip-in FIG.1, FIG.1,ct ctan anopening, opening,as asreqired reqiredininthe theside side cold case a short circit or grond. Make sre all fasteners are tight. ofof the thedct. dct.slide Slide ininthe thedct dctsing singcontrol controlbox boxas astemplate templatetoto Electrical connections sch as pressre terminals shold be checked for mark markthe themonting montingscrew screwholes. holes.remove Removenit nitand anddrill drillmonting montingholes. holes. tightness. Mont Montnit nittotodct dctwith withsheet sheetmetal metalscrews. screws.connect Connecthigh highand andlow low voltage voltagespplies sppliesalong alongwith withfan faninterlock interlockcircit circit(if(ifno noairflow airflowswitch switchisis INSTALLATION: frnished). HEATING frnished).larger Largers smay mayreqire reqirehangers. hangers. For safe operation and best performance, the following installation E K SE R I E S Installed by slipping the into a dctwork opening. of flanged dctwork. 4.4. The least4 4feet feetfrom fromany anycanvas canvasdct dctconnector connectororortransition transitionsection sectionfor for Dct Heaters are prewired, have voltage ratings to 600 volts, both change single phase and three phase. changeinindct dctsize. size. 6.6. least4 4feet feetpstream pstreamfrom froma ahmidifier. hmidifier. SLIP-IN INSTALLATION procedres mst be adhered to. ToTo install installa aflange flangetype type FIG.2, FIG.2,Insert Insert between betweentwo twosections sections TERMINAL OR ofof flanged flangeddct dctand andbolt boltininplace. place.for Foradditional additionalstrength, strength,the thedct dctflange flange Heaters may be installed in thecontrol sides of either horizontal or vertical BOX shold sholdbebedobled dobledasasshown shownininthe thefigre. figre.large Larges smay mayreqire reqire dcts bt never in the top or bottom of a horizontal dct. Heaters hanger hangerstraps. straps.connect Connecthigh highand andlow lowvoltage voltagespplies sppliesalong alongwith withfan fan installed in vertical dcts are tested and approved for p airflow only! interlock interlockcircit circit(if(ifnonoairflow airflowswitch switchisisfrnished). frnished). SCR FUSING DISCONNECT PILOT TRANSFORMER 1.Install a a minimm of (4) feet from heat pmps or central air CONTROL LIGHT conditioners. 2. At least 4 feet downstream from an air handler. INC. INC. 4 500 500GOULD GOULDDRIVE DRIVE 3. At COOKEVILLE, COOKEVILLE, TN 38506 least 2 feet eithertn side38506 of an elbow or trn. FAX PHONE FAX(931)432-4140 (931)432-4140 PHONE (931)432-4141 (931)432-4141 4. At least 4 feet from any canvas dct connector or transition section for HEATING ELEMENTS TERMINAL OR CONTROL BOX
E L E C T R I C D U C T H E AT E R ( 1-1 1. 5 K W ) RenewAire offers the highest-efficiency ERVs on the market. However, dring winter S T A N D A R D F E AT U R E S conditions, spply air from the ERV may be less than optimal for space conditions. By adding O pen-coil element H igh-grade, nickel-chrome element wire W all-mont thermostat (wall mont only) R E N E W A I R E S R O U N D E L E C T R I C D U C T H E AT E R as an option to or residential and light commercial ERVs, RenewAire can now heat spply air dring cooler months to enhance indoor comfort, all via one package for ERVs and s H SERIES from a single sorce. KEY BENEFITS Vertical or horizontal operation Atomatic limit switch for primary M anal reset limit switch for secondary Temperatre (dct) sensor (dct mont only) Modlating heat otpt (SCR control) Airflow sensor S tandard control transformer 24 VAC C orrosion-resistant galvanized steel R ond dct collars H igh-voltage terminal block connections G ronding lg M onting flanges C O N S T R U C T I O N A N D I N S T A L L AT I O N A single sorce redces time and costs: A single information sorce, a single prchase point and a single approval package for ERVs and s redces design time and costs, and streamlines logistics for design engineers and contractors. E asy installation: A ZERO clearance rating to combstibles allows designers and contractors to apply RenewAire s with less restrictions onsite. H ighly certified: CSA certified and evalated to the applicable ANSI/UL and CSA Standards, for se in the U.S. and Canada. RenewAire RH series s complement RenewAire EK Series electric dct offering heat capacities that range from 1 11.5 kw for rond-dct diameters from 6" to 12". They have the ability to handle airflows from 30 1,000 CFM. Each electric dct 's niqe design allows air to flow freely for the lowest possible pressre drop. Or s are factory-assembled and wired for the electrical specialties and controls of each project, and are available with rond dct connection collars. The s are shipped loose, can be dct-installed onsite and are designed for post-installation if necessary. Heaters are wired with a separate power sorce to be placed anywhere downstream of the ERV or to be split to serve different areas with a single ERV. A P P L I C AT I O N S RenewAire ERV and rond electric combinations can be applied anywhere residential and light commercial ERVs are installed with 6", 8", 10" and/or 12" rond dctwork. The varying kw sizes and single phase electric power offerings allow the rond electric s to be applied to sit any project s reqirements for spplemental electric heating. Other applications inclde existing installations that reqire additional heat, increased heat or simply replacement s. TRANSFORMER RH-D AUTOMATIC RESET AIRFLOW SENSOR CONTROL TERMINAL BLOCK RH-W (Integral Thermostat) AUTOMATIC RESET AIRFLOW SENSOR TRANSFORMER (Wall-Mont Thermostat) RenewAire s can be designed for 75 F comfort conditions, or warmer, and since ERV spply air is dcted into the space, tempering otdoor air for space conditions or offering spplemental heat is easy and simple. RenewAire s are for indoor se only. MODELS RenewAire s RH series single-phase rond electric dct are available in two models: RH-D and RH-W. In the RH-W model the temperatre control is wall monted in the room, while for the RH-D the temperatre controller is integral to the nit. R H SERIES CAPACITY 1-11.5 kw MIN. DUCT COLLAR 6" MAX. DUCT COLLAR 12" ELECTRONIC CONTROLLER 5 MANUAL RESET POWER TERMINAL BLOCK SOLIDSTATE RELAY SOLIDSTATE CONTROLLER MANUAL RESET POWER TERMINAL BLOCK 6
EK SERIES Electric Dct Heater (1-175 kw) Accessory ELECTRIC DUCT HEATER Download specification at: renewaire.com/specifications SPECIFICATIONS Heater Type: Electric Dct Heater Typical KW Range: 1 175 kw Standard Featres: A disconnecting magnetic control contactor per stage or each 48 Amp circit within a stage Open-coil element Staged on/off Control terminal board Gronding lgs Atomatic limit switch for primary overtemperatre protection Manal reset limit switch for secondary overtemperatre protection Non-adjstable airfl ow switch Standard control transformer - 24 VAC Disconnect switch Dct thermostat with sensor for on/off control 60-20-20 (Ni/Cr/Fe) C Grade element wire with nickel-plated terminals Slip-in mont No left/right hand Vertical p/down fl ow Voltages & Phase: Single phase - 120, 208, 240, 277 Three phase - 208, 240, 480, 600 Control Voltage: 24 VAC Dimensions: Minimm - 8" x 8" (W x H) Maximm - 99" x 99" (W x H) Options: Flange mont 80-20 (Ni/Cr) A Grade element wire with stainless steel terminals Recessed control box 1" Gasketed cover - dst tight Power fsing, standard for s drawing more than 48 Amps 2-stage Electronic step controller (4-stage) SCR (p to 96 Amps) SCR Vernier (over 96 Amps) Pilot light Accessory: Room thermostat Room/dct thermostat-sensor kit for SCR control Note: Electric dct designed for indoor dctwork installation only. HEATER CAPACITY - kw 200 175 150 125 100 75 50 EK SERIES HEATER CAPACITY SAFE OPERATING RANGE Static Pressre Drop - Inches of Water 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 PRESSURE DROP THROUGH HEATER 4 3 2 1 25 0 0 2500 5000 7500 10000 12500 AIRFLOW - CFM 0 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 Air Velocity - FPM (1, 2, 3 and 4 - the nmber of rows of coils) When the nmber of rows of coils is nknown, assme 4. FLIPPABLE CAPABILITIES Uniqe to the EK series, this nit has the ability to flip 180. Additionally, EK s featre both vertical p and vertical down airflow. 7
EK SERIES DETERMINING MAXIMUM HEATER KW Maximm Watts per Sq. In. of Dct Area Dct width (inches) x dct height (inches) = dct watts total sq. in. Max W = X w x dct area in 2 in 2 RH SERIES For EK, X = 208.33 w MINIMUM AIR VELOCITIES MINIMUM AIRFLOW AND AIR VELOCITIES Minimm Airflow (CFM) = 30 (CFM) x Heater Capacity (kw) Example: Heater Capacity = 4 kw 30 CFM x 4 kw = 120 CFM Minimm Airflow Minimm Velocity = Minimm Airflow (CFM) Rond Dct Area (ft 2 ) Example: Heater Capacity = 4 kw Area of 8" Rond Dct Size = 0.349 ft 2 120 CFM Minimm Airflow / 0.349 sqare feet dct area = 344 FPM minimm cross sectional velocity LINE CURRENT CALCULATION Maximm kw for Sq. Ft. of Dct Area Dct width (feet) x dct height (feet) = dct area total ft 2 Max W = X kw x dct area ft 2 Line Crrent (Amperes (A)) = Watts (W) / Line Voltage (V) Example: 4 kw Heater = 4000 W Line Voltage = 240 V Line Crrent = 4000 W / 240 V = 16.7 A in 2 ft 2 For EK, X = 30 kw The minimm niform airflow in a dct is directly related to the inlet air temperatre. Consideration mst be given to both airflow across the and inlet air temperatre. 1. To calclate the kilowatts per sq. ft. of dct area, divide the total kilowatts reqired by the dct area. Example: Dct Size = 2ft. x 3ft. Total Kilowatts = 20 20 6 = 3.333 kw / Sq. Ft. 2. If the air handler eqipment is expressed in FPM, then a direct cross reference can be made by comparing the temperatre of the air (as it enters the dct ) to the kw rating on the chart of rated velocity (refer to chart at right). a. Draw a line horizontally from the kilowatt per sq. ft. reqired to the inlet air temperatre being sed. b. From this point of intersection on the inlet air crve, draw a line down vertically to establish the air velocity. c. The velocity shold never be lower than the velocity as determined from the chart. In cases where this is not tre, the velocity mst be increased or the kw reqired mst be redced. 3. In cases where the air handling eqipment is expressed in CFM, then convert to FPM by dividing the CFM by the dct area. Example: FPM = CFM Dct Area EK & RH SERIES KW AND TEMPERATURE RISE The following formla may be sed to determine the approximate total kw reqired when the CFM (air volme) and desired temperatre are known: kw = CFM x rt 3150 DUCT HEATER TEMPERATURE RISE The following formla may be sed to determine the approximate temperatre rise of a dct when the kw and CFM are known: rt = kw x 3150 CFM ft 2 RenewAire.com 800.627.4499 LIT069_02 (12/18)