Envision Air Handler Specification Catalog

Air Handler Design Features Factory ptions Accessories Dimensional Data Physical Data Performance Data Engineering uide Specifications Envision Air Handler Specification atalog S00HN 0/

ENVISIN AI HANDLE SPEIFIATIN ATAL Table of ontents Model Nomenclature.............................................................. Physical Data..................................................................... Design Features and Benefits.................................................... - Dimensional Data (abinet & onnections)....................................... -0 Electrical Data.................................................................... ompatibility..................................................................... Wiring Schematics.............................................................- Blower Performance.............................................................. oil Performance..............................................................- Envision oil Nomenclature....................................................... Dimensional Data (oils)........................................................- Engineering uide Specifications.................................................. evision uide...................................................................

ENVISIN AI HANDLE SPEIFIATIN ATAL Nomenclature - - - 0 NAH 0 * 00 0 Model NAH Envision Series Air Handler Unit apacity efrigeration (DX) Models with Nominal FM 0 MBTUH 00 0 MBTUH 00 MBTUH 0 0 MBTUH 0 MBTUH 0 MBTUH 00 MBTUH 0 Hydronic Models with Nominal FM 0 MBTUH 0 MBTUH 0 MBTUH 00 MBTUH 0 Vintage * = Factory Use nly Air oil efrigerant H - Hydronic Motor EM 0-0/0/ Disconnect 0 No Breaker Installed (only on kw & 0kW Heaters) Breaker Installed (only on kw & 0kW Heaters) Electric Heat 00 None 0 kw (0 0 only) 0 0kW (00 00 only) kw (0 00 only) 0 0kW (00 only) ev.: 0 April 0D TE: To field convert the NAH0-00 to bottomflow air discharge, the NAHB kit must be ordered. Physical Data Air Handler Model Number (efrigerant) Evaporator oil efrigerant Air oil Total Face Area, ft [m] Tube outside diameter - in. [mm] Number of rows Fins per inch Suction line connection - in. [mm] sweat Liquid line connection - in. [mm] sweat NAH0 NAH0 NAH00 NAH0 NAH0 NAH0 NAH00. [0.] / [.] / [.] / [.] / [.] Nominal cooling capacity - tons [kw]. [.]. [.]. [.] [0.]. [.0] [.0] [.] ondensate drain connection - (.D.) in. [mm] / [.0] Blower Wheel Size (Dia x W), in. [mm] Blower motor type/speeds x 0 [ x ] Variable Speed EM Blower motor output - hp [W] / [] [] Filter Standard - " [mm] MEV disposable, in. [mm] Electrical characteristics (0hz) 0 x [0 x ] 0/0 - ph Shipping weight - lbs. [kg] perating weight - lbs. [kg] [.] [.] 0 [.] 00 [0.] // -0a Air Handler Model Number (Hydronic) NAH0 NAH0 NAH0 NAH00 Air oil Total Face Area, ft [m] Tube outside diameter - in. [mm]. [0.] / [.] Hydronic oil Number of rows Fins per inch Water In connection - in. [mm] sweat Water ut connection - in. [mm] sweat / [.] / [.] Nominal cooling capacity - tons [kw]. [.] [0.] [.0] [.] ondensate drain connection - (.D) in. [mm] Blower Wheel Size (Dia x W), in. [mm] Blower motor type/speeds / [.0] x 0 [ x ] Variable Speed EM Blower motor output - hp [W] / [] [] Filter Standard - " [mm] MEV disposable, in. [mm] Electrical characteristics (0hz) Shipping weight - lbs. [kg] perating weight - lbs. [kg] 0 x [0 x ] 0/0 - ph 0 [.] 00 [0.] TE: Water connection dimensions are.d. //0

ENVISIN AI HANDLE SPEIFIATIN ATAL Envision Air Handler Features and Benefits Easy to access control panel Slide out blower assembly Factory installed Internal Electric Heat with circuit breakers on kw and 0kw models. Field switchable, four position design (Horizontal Left/ight, Vertical & Bottomflow Variable speed EM blower motor Narrow design for attic access Width - [. cm] Height -. [. cm] Depth -. [. cm]` Foil lined, cleanable insulation FormiShield coated air coil Factory installed TXV DX or Hydronic A oil Filter ack oated galvanized steel drain pan Ease of onversion

ENVISIN AI HANDLE SPEIFIATIN ATAL Envision Air Handler Features and Benefits Air oil Designed for -0A refrigerant. onfigured as a 'A' coil, rifled copper tubes and enhanced corrugated lanced aluminum fins to provide high efficiencies at low face velocities. Exclusive FormiShield coated for added protection. abinet onstructed of heavy gauge environmentally-responsible galvanized steel for maximum corrosion resistance. All units are painted with a powder coat finish. All interior surfaces are lined with / thick, foil lined acoustic type fiber insulation, applied in a manner that prevents the introduction of glass fibers into the air stream. Multiple knockouts in various sizes facilitate power and low voltage wiring. Multiple access panels for ease of service. ontrols EM interface board allows for blower speed selection and thermostat inputs. Auxiliary/Emergency Heat ptional factory installed electric heat. Installation Ease abinets are shipped in one piece but can be separated into two pieces for ease of installation in tight spaces. Auxiliary/ Emergency Electric Heat Electric heat packages can be factory or field installed. For field installed electric heat the Auxiliary Heat ompatibility table below shows the available heater packages for the air handler. onfigurations abinets are factory configured for upflow and horizontal left hand air discharge installation but can be easily configured for horizontal right hand or bottomflow air discharge. Drain Pans Two e-coated galvanized steel drain pans included. ne for vertical and one for horizontal applications. The pans come equipped with primary and secondary drain connections. Electrical Disconnect Factory installed circuit breaker on kw/0kw heaters. Expansion Device Factory installed TXV with internal check valve inside of cabinet. efrigerant onnections Suction and liquid lines have sweat connections extended outside of cabinet for ease of connection. Auxiliary Heat ompatibility Model kw Stages Min FM NAH Envision Series Air Handler ompatibility 0-0 00-0 0-0 00 P-0A 0 P-0A 0 00 P-0A P-0A 0 00 /0/0

ENVISIN AI HANDLE SPEIFIATIN ATAL Dimensional Data - DX Air Handler Top Flow/Horizontal Unit onfiguration DD EE FF W D HH II E K J L AA BB N M F JJ P Q S H I B LL MM T U V A Topflow/ verall abinet efrigerant/water onnections Horizontal D E F onfiguration A B /" cond /" cond eturn H I J K L M N P Q S Power Low Air Duct Suction / Liquid / Width Depth Height Supply Voltage Flange Water ut Water In in..0...0. 0.......0..0. 0.. 0.. 0-00 cm............ 0.. 0...0... HH II S T U V W X Y Z AA BB DD EE FF " cond /" cond JJ KK LL MM Power Supply Low Voltage..0. 0.........0..0.0.0.0..0......0... 0............0..0 ondensate is stainless steel /".D. tube Discharge flange is field installed and extends " (. mm) from cabinet ev: //

ENVISIN AI HANDLE SPEIFIATIN ATAL Dimensional Data - DX Air Handler Bottom Flow Unit onfiguration A X W I B JJ T V U 0. F S KK LL MM H Y DD EE J K FF AA BB N M L D E P HH II Z Q verall abinet efrigerant/water onnections Bottomflow D E F onfiguration A B /" cond " cond eturn H I J K L M N P Q 0-00 Width Depth Height Low Voltage Power Supply Air Duct Flange Suction / Water ut Liquid / Water In in..0.... 0............ 0. cm............ 0..... 0.. DD EE S T U V W X Y Z AA BB " cond /" cond FF HH II JJ KK LL MM Power Supply Low Voltage. 0...0. 0.... 0..0.0.0.0..0...0........0 0.0............0..0 ondensate is stainless steel /".D. tube ev: // Discharge flange is field installed and extends " (. mm) from cabinet

ENVISIN AI HANDLE SPEIFIATIN ATAL Dimensional Data - Hydronic Air Handler Top Flow/Horizontal Unit onfiguration DD EE FF W D HH II E K J L AA BB N M F JJ P Q S H I B LL MM T U V A Topflow/ verall abinet efrigerant/water onnections Horizontal D E F onfiguration A B /" cond /" cond eturn H I J K L M N P Q S Power Low Air Duct Suction / Liquid / Width Depth Height Supply Voltage Flange Water ut Water In in..0...0. 0.........0. 0.. 0.. 0-00 cm............ 0..0 0...0... HH II S T U V W X Y Z AA BB DD EE FF " cond /" cond JJ KK LL MM Power Supply Low Voltage..0. 0.........0..0.0.0.0..0......0... 0............0..0 ondensate is stainless steel /".D Discharge flange is field installed and extends " (. mm) from cabinet ev: //

ENVISIN AI HANDLE SPEIFIATIN ATAL Dimensional Data - Hydronic Air Handler Bottom Flow Unit onfiguration A X W I B JJ T U V 0. F S KK LL MM H Y DD EE J K FF AA BB N M L D E P HH II Z Q verall abinet efrigerant/water onnections Bottomflow D E F onfiguration A B /" cond " cond eturn H I J K L M N P Q 0-00 Width Depth Height Low Voltage Power Supply Air Duct Flange Suction / Water ut Liquid / Water In in..0.... 0............ 0. cm............ 0..... 0.. DD EE S T U V W X Y Z AA BB " cond /" cond FF HH II JJ KK LL MM Power Supply Low Voltage. 0...0. 0.... 0..0.0.0.0..0...0........0 0.0............0..0 ondensate is stainless steel /".D ev: // Discharge flange is field installed and extends " (. mm) from cabinet 0

ENVISIN AI HANDLE SPEIFIATIN ATAL Electrical Data Model Electric Heat apacity Aux. Heat Supply Minimum ated Voltage Voltage Heater Minimum ircuit Maximum Fuse/ Blower Total Unit FLA Ampacity Ampacity HA KW BTUH ircuit Min/Max Motor FLA FM 0v 0v 0v 0v 0v 0v 0v 0v 0v 0v 0 0 0 -.0 - -.0.0.0.0 0 0., single 0.0. 0.0..0. 0.0 0 0 0 0 0 -.0 - -.0.0.0.0 0 0., single 0.0. 0.0..0. 0.0 0 0 0 0 -.0 - -.0.0.0.0 0 0 00., single 0.0. 0.0..0. 0.0 0 0., single 00.0. 0.0..0..0 0 0 0 0 -.0 - -.0.0.0.0 0 0 0., single 0.0. 0.0..0. 0.0 0 0., single 00.0. 0.0..0..0 0 0 0 0 -.0 - -.0.0..., single 00.0. 0.0..0.. 0 0 0., single.0.0 0.0.0.0.. 0 0., L/L,.0. 0.0..0.. 0 0 0-0/0/ / L/L -. 0.0. 0.0..0 0 0 -.0 - -.0.0..., single 00.0. 0.0..0.. 0 0 0., single.0.0 0.0.0.0.. 0 0., L/L,.0. 0.0..0.. 0 0 L/L -. 0.0. 0.0..0 0 0 -.0 - -.0.0..., single 00.0. 0.0..0.. 0 0., single.0.0 0.0.0.0.. 0 0 00., L/L,.0. 0.0..0.. 0 0 L/L -. 0.0. 0.0..0.,0 single.0. 0.0..0. 0. 00 0.,0 //0 L/L,00.0. 0.0..0.. 0 0 L/L -. 0.0. 0.0. 0.0 0 0 ated Voltage of 0/0/0/ HA circuit breaker in USA only ompatibility Air Handler Sizing Selection The Envision Air Handlers are designed for -0A refrigerant and should be matched with Series Split compressor section according to the table below. Air Handler Indoor Split Model (Single) Indoor Split Model (Dual apacity) utdoor Split Model (Dual apacity) Airflow(FM) Electric Heat (kw) NAH0B*** NSZ0-00 NAH0B*** - NDZ0 NDS0 NAH00B*** NSZ00 - - 0, 0 NAH0B*** NSZ0 - -, 0 NAH0B*** - NDZ0 NDS0, 0 NAH0B*** NSZ0 - - 0, NAH0B*** NSZ0 - - 0, NAH0B*** - NDZ0 NDS0 0, NAH00B*** NSZ00 - - 0 0,, 0 NAH00B*** - NDZ0 NDS0 0 0,, 0 NAH00B*** NSZ00 - - 0 0,, 0 NAH00B*** - NDZ0 NDS0 0 0,, 0 0//

ENVISIN AI HANDLE SPEIFIATIN ATAL Wiring Schematics Air Handler Wiring Schematic - 0-0/0/ P-0 TS L Factory Low voltage wiring Factory Line voltage wiring Field low voltage wiring Field line voltage wiring ptional block D Voltage PB traces Internal junction Quick connect terminal Thermal Limit Switch Field wire lug round N.., N.. E to E - Aux heat stage relays Legend P Notes: To operate in 0V mode replace the blue transformer wire connected to PB-L with red transformer wire. Jumper wires are Factory Installed, and are needed for electric heat operation. Dip switches are used to select the air flow. Use manufacturer s part number P-0 (jumper bar assembly) when single source power is required. Low voltage wiring LASS. EH EH PB - SW - HE - Light emitting diode - reen 0-0V elay coil Electric Heat ontactor Polarized connector Power block DIP package 0 position Heater element Breaker Dual Power Supply onnections If two separate circuits are used to supply power to the auxiliary heat kit, the Installer will need to verify that each leg of the auxiliary heat circuit breakers are wired from the power supply correctly in order for the electric heat kit to operate properly. This can be done by measuring the supply side voltage of the auxiliary heat circuit breakers. Put a voltmeter on the L side of ircuit Breaker ne and on the L side of ircuit Breaker Two. The voltmeter should read approximately 0 volts. If the meter reads high voltage, the auxiliary heat breakers need to be rewired so that breakers in the auxiliary heat kit match the wiring of the Disconnect Panel breakers. Meaning, L and L from one breaker in the disconnect panel must connect to L and L at one of the auxiliary heat circuit breakers and L and L from the other breaker in the disconnect panel must connect to L and L of the other auxiliary heat circuit breaker, making sure that the L and L from each disconnect breaker matches the L and L at each of the auxiliary heat breakers. Yel Thermostat Y Y W rn/yel() V Transformer Blk/Wh XFM SE P DD Y Y /B W W Black Blue ed TE Note 0 SW n W 0-0/0/ L LED W Air Handler No Electric Heat PB L 0 P Black () Black () Black () Black () Black () Black () Black () Black () Black () Black (0) Black () Black () Black () Black () Black () Black () Brown range 0 rn PM grnd PM BK L ADJUST HEAT DELAY Y Y /Y n/ff W / W EM / W EM Blower Motor

ENVISIN AI HANDLE SPEIFIATIN ATAL Wiring Schematics cont. 0-0/0/ PB Transformer Black L L ry() ry() Yel V Blk/Wh ed TE Blue Brown range rn rn() Thermostat Y Y rn/yel() XFM SE P DD Y Y LED Note 0 SW n P 0 Black () Black () Black () Black () Black () Black () Black () Black () Black () Black (0) Black () Black () Black () Black () Black () Black () 0 PM grnd PM L ADJUST HEAT DELAY BK Y Y /Y n/ff W / W EM / W ray E E TE P E E P ry() ry() HE TS /B W EM Blower Motor W W W W Wht() Air Handler kw Electric Heat rn() Electric Heat 0-0/0/ Yel V Transformer Blk/Wh Black ed TE Blue L PB L Brown range ry() Yel() rn ry() Yel() rn() Thermostat Y Y rn/yel() XFM SE P DD Y Y /B LED Note 0 SW n P 0 Black () Black () Black () Black () Black () Black () Black () Black () Black () Black (0) Black () Black () Black () Black () Black () Black () 0 PM BK n/ff PM grnd L ADJUST HEAT DELAY Y Y /Y W / W EM / W EM Blower Motor TE P Wht(0) Blu() ray E E E E P ry() HE ry() Yel() HE Yel() TS TS W W W W W Wht() TD Air Handler 0kW Electric Heat rn() Electric Heat

ENVISIN AI HANDLE SPEIFIATIN ATAL Wiring Schematics cont. 0-0/0/ ircuit 0-0/0/ ircuit Note L L L L PB BK BK rn() Yel Thermostat Y Y W rn/yel() V Transformer Blk/Wh XFM SE P DD Y Y /B W W Black ed TE Blue L Note 0 SW n W LED W L 0 P Black () Black () Black () Black () Black () Black () Black () Black () Black () Black (0) Black () Black () Black () Black () Black () Black () Brown range ed () Black() Air Handler w/ kw Electric Heat 0 rn PM grnd PM L ADJUST HEAT DELAY BK Y Y /Y n/ff W / W EM / W EM Blower Motor Wht() rn() P TE TD Blk() Yel() Wht(0) ry() ray E ry() Blu EH E Blu() E E P Blk() ry(0) Yel() Blk() Yel() Blu EH HE TS HE TS HE TS Electric Heat ry() Blk() Yel() 0-0/0/ ircuit 0-0/0/ ircuit Note L L L L PB BK BK rn() Yel Thermostat Y Y W rn/yel() V Transformer Blk/Wh XFM SE P DD Y Y /B W W Black ed TE Blue L LED Note 0 SW n W W L 0 P Black () Black () Black () Black () Black () Black () Black () Black () Black () Black (0) Black () Black () Black () Black () Black () Black () Brown range ed () Black() Air Handler w/ 0kW Electric Heat 0 rn PM BK PM grnd L ADJUST HEAT DELAY Y Y /Y n/ff W / W EM / W EM Blower Motor Wht() rn() P TE TD Blk() Yel() Pnk() P Wht(0) ry() ray E ry() Blu EH E Blu() E E Blk() ry(0) Yel() Pnk() Blk() Yel() Blu Pnk() EH HE TS HE TS HE TS HE TS Electric Heat ry() Blk() Yel() PNK()

ENVISIN AI HANDLE SPEIFIATIN ATAL Blower Performance Blower Performance Variable Speed EM Model 0 0 00 0 0 0 Max ESP (wg) Blower Motor (hp) HP FM Setting Normal Mode Htg & lg Dehumidification Mode lg Aux FM Setting Aux Emerg S S Stg Stg Blower S Stg Stg Blower S S Mode 0.0 / n n 00 00 0 ff 00 0 n n 000 0.0 / ff n 00 00 ff 0 0 00 ff n 00 0.0 / n ff 00 0 ff 00 0 n ff 0.0 / ff ff 0 0 0 ff ff 0 0.0 / n n 00 00 ff 0 00 n n 0 0.0 / ff n ff 0 0 ff n 0 0.0 / n ff 00 ff 0 0 n ff 0.0 / ff ff 0 00 ff ff 0.0 / n n 0 0 00 ff 00 n n 0 0.0 / ff n 0 0 00 ff 0 00 ff n 000 0.0 / n ff 00 00 0 ff 0 0 0 n ff 0.0 / ff ff 00 0 ff ff 00 0.0 / n n 00 0 0 ff 0 0 n n 00 0.0 / ff n 0 ff 0 0 ff n 0 0.0 / n ff 0 0 0 ff 0 0 0 n ff 0.0 / ff ff 0 00 0 ff ff 00 0. n n 00 00 0 ff 0 00 0 n n 0 0. ff n 00 0 ff 0 0 0 ff n 0 0. n ff 00 ff 00 00 n ff 00 0. ff ff 0 0 ff ff 0. n n 00 00 ff 00 00 n n 00 0. ff n 0 ff 0 0 ff n 0 0. n ff 0 00 0 ff 00 00 0 n ff 0. ff ff 00 000 ff ff 00 0. n n 0 0 ff 0 0 n n 0 0. ff n 0 00 ff 0 0 00 ff n 0 00 0. n ff 0 0 ff 00 0 n ff 0. ff ff 0 ff ff 00 Factory FM settings are in boldface //0 FM is controlled within % up to maximum ESP Maximum ESP includes allowance for wet coil and standard filter DIP switch must be 'FF' to select dehumidification mode Air Handler DIP Switches DIPS Switch Description Used to set normal FM Not used Used to set aux./emergency heat FM Not used Used to set dehumidification FM 0 Not used

ENVISIN AI HANDLE SPEIFIATIN ATAL Hydronic oil Performance 0-0 Heating/ooling (efer to Indoor Split or utdoor Split Specification atalogs for apacity tables)

ENVISIN AI HANDLE SPEIFIATIN ATAL Hydronic oil Performance 0-00 Heating/ooling (efer to Indoor Split or utdoor Split Specification atalogs for apacity tables)

ENVISIN AI HANDLE SPEIFIATIN ATAL Envision oil Nomenclature - N A - 0 Model Type N = Envision efrigerant oil NH = Envision Hydronic oil onfiguration A = "A" oil oil abinet = Encased U = Uncased apacity efrigerant Models 0 MBTUH 0 MBTUH 0 MBTUH 00 MBTUH Hydronic Models 00 MBTUH TE: All efrigerant oils include TXV. efrigerant oil ompatibility Encased/Uncased oil Indoor Split Model Indoor Split Model utdoor Split Model ecommended Airflow (Single) (Dual apacity) (Dual apacity) (FM) NA0* NSZ0-00 NA0* - NDZ0 NDS0 NA0* NSZ00 - - 0 NA0* NSZ0 - - NA0* - NDZ0 NDS0 NA0* NSZ0 - - NA0* NSZ0 - - NA0* - NDZ0 NDS0 NA00* NSZ00 - - 0 NA00* - NDZ0 NDS0 0 NA00* NSZ00 - - 0 NA00* - NDZ0 NDS0 0 //0 oil Physical haracteristics Air oil Model Number (efrigerant) NA0 NA0 NA0 NA00 Air oil Total Face Area, ft [m]. [0.] Tube outside diameter - in. [mm] / [.] Evaporator oil Number of rows Fins per inch Suction line connection - in. [mm] sweat / [.] / [.] Liquid line connection - in. [mm] sweat / [.] efrigerant -0a Nominal cooling capacity - tons [kw]. [.] [0.] [.0] [.] ondensate drain connection - (.D.) in. [mm] / [.0] Air oil Model Number (Hydronic) NHA00 Air oil Total Face Area, ft [m]. [0.] Tube outside diameter - in. [mm] / [.] Hydronic oil Number of rows Fins per inch Water In connection - in. [mm] sweat / [.] Water ut connection - in. [mm] sweat / [.] Nominal cooling capacity - tons [kw] [.] ondensate drain connection - (.D) in. [mm] / [.0] TE: Water connection dimensions are.d.

ENVISIN AI HANDLE SPEIFIATIN ATAL Dimensional Data Hydronic oil H I J. [.cm] B L K D E IHT SIDE FNT BTTM onnections verall Dimensions ondensate onnections Hydronic onnections Uncased Models A B Water Water ondensate D E F H I J K L Width Depth Height Sweat Sweat Tube in. 0.0.. / / /.0. 0.. 0.0...0. NHA00U cm. 0............... A F efrigerant oil I H J. [.cm] L B K D E A IHT SIDE FNT BTTM onnections verall Dimensions Uncased Models A B Suction Liquid ondensate Width Depth Height Sweat Sweat Tube F ondensate onnections efrigerant onnections D E F H I J K L NA0-0U in. 0.0. 0. / / /.0. 0.. 0.0.0..0. cm. 0.....0.......... NA0-00U in. 0.0. 0. / / /.0. 0.. 0.0.0..0. cm. 0.....0.......... TE: All refrigerant coils feature factory installed TXV. Water connection dimensions are.d.

ENVISIN AI HANDLE SPEIFIATIN ATAL Dimensional Data - DX ased oils TP A E AD D LEFT SIDE FNT V W AB BTTM. [.cm] M P Q J X Y K L AA Z F H I B N S T U A Encased Models NA0-0 NA0-00 Encased Models NA0-0 NA0-00 A Width verall abinet onnections Supply onnection Suction Liquid Water Water ondensate B Depth Height* Sweat Sweat Sweat Sweat Tube D Supply Width E Supply Depth Inlet onnection F H I in. 0..0. / / - - /.0.....0 cm...0...0 - -....... in. 0..0. / / - - /.0.....0 cm...0...0 - -....... efrigerant & Water onnections ondensate onnections Miscellaneous J K L M N P Q S T U V W X Y Z AA AB A AD in. 0..0...... 0.......... 0..0.0 cm.. 0........... 0....0..... in. 0..0...... 0.......... 0..0.0 cm.. 0........... 0....0..... TE: All refrigerant coils feature factory installed TXV. //0 0

ENVISIN AI HANDLE SPEIFIATIN ATAL Dimensional Data - Hydronic ased oils TP A E AD D LEFT SIDE FNT V W AB BTTM. [.cm] M P Q J X Y K L AA Z F H I B N S T U A Encased Models NHA00 Encased Models NHA00 A Width verall abinet onnections Supply onnection Suction Liquid Water Water ondensate B Depth Height* Sweat Sweat Sweat Sweat Tube D Supply Width E Supply Depth Inlet onnection F H I in. 0..0. - - / / /.0.....0 cm...0. - -......... efrigerant & Water onnections ondensate onnections Miscellaneous J K L M N P Q S T U V W X Y Z AA AB A AD in. 0..0...... 0.......... 0..0.0 cm.. 0........... 0....0.....

ENVISIN AI HANDLE SPEIFIATIN ATAL Engineering uide Specifications eneral The air handler shall provide vertical upflow, downflow, or horizontal configurations in one package. Units shall be listed by a nationally recognized safety-testing laboratory or agency, such as Underwriter s Laboratory (UL) or Environmental Testing Laboratories (Intertek-ETL). The air handler units shall be designed and AHI performance listed to operate with the Series geothermal split condensing units as provided by WaterFurnace, International of Fort Wayne, Indiana. Each unit shall be pallet mounted and shipped using dense cardboard corners/top and stretch wrap for easy shipping damage inspection. asing and abinet The cabinet shall be fabricated from heavy-gauge galvanized steel and polyester powder coat paint to withstand 000 hours of salt spray testing. The interior shall be insulated with in. thick, multi-density, cleanable aluminum foil coated glass fiber with edges sealed or tucked under flanges to prevent the introduction of glass fibers into the discharge air. ne large blower compartment access panel shall be provided and shall be removable with supply and return ductwork in place. The internal components layout shall provide for major service with the unit in-place for restricted access installations. The blower assembly access shall be slide-out serviceable via a works-in-a-drawer design. The cabinet shall be convertible to horizontal or downflow applications by reconfiguring the cabinet using only a nut driver. The unit shall be zero clearance approved on any of its surfaces. The cabinet shall be divided into two cubes to facilitate easy transport up attic ladders when needed. Standard-size MEV in. filters shall be provided with each unit. Blower Motor and Assembly The blower shall be an oversized direct drive centrifugal type with a dynamically balanced wheel. The housing and wheel shall be designed for quiet low outlet velocity operation and of galvanized or galvalume steel construction. Tight blower housing geometry shall not be permitted. The blower housing shall be removable from the unit without disconnecting the supply air ductwork for servicing of the blower motor through a works-in-a-drawer design. The high efficiency blower motor shall be a variable speed EM type. The blower motor shall be isolated from the housing by rubber grommets. The motor shall be permanently lubricated ball bearings and have thermal overload protection. Electrical A solid state electronic control module shall be provided for the control of the blower and each stage of electric heat. Single or dual circuit line voltage terminal blocks shall be provided for the air handler power supply. Fuse protection shall be provided for the VA control transformer. Units shall have knockouts for entrance of the low and line voltage wiring. The blower motor shall incorporate a harness plug-connection for easy removal. An integral circuit breaker shall be provided on all units employing or 0kW electric heat. The control shall maintain the blower operation 0 seconds after the compressor or electric heat have shut off to improve efficiency. Piping efrigerant connections shall be made using sweat copper joints. The condensate connections shall be a / in..d. tube. efrigeration ircuit All units shall provide a fin tube air-to-refrigerant heat exchanger of the A coil design. The finned tube coil shall be sized for low-face velocity and constructed of lanced aluminum fins bonded to rifled copper tubes in a staggered pattern. The coil shall include an integral corrosion resistant e-coated galvanized drain pan. The thermal expansion valve shall be factory installed and provide proper superheat over the entire liquid temperature range with minimal hunting. The valve shall operate in the cooling mode through the use of an internal check valve.

ENVISIN AI HANDLE SPEIFIATIN ATAL evision uide Pages: Description: Date: By: - Updated Wiring Schematics 0 April 0 MA -0, - Update Hydronic Data Aug 0 MA -0 Updated Drain Pan 0 May 0 DS/MA All Updated Dimensional Data for New Vertical ondensate Drain 0 May 0 DS All Updated Nomenclature For New EM Motor 0 Feb 0 DS - Added Additional Dimension on eturn Side pening on Hydronic & DX oils 0 Feb 0 DS Added evision uide 0 Feb 0 DS

Manufactured by WaterFurnace International, Inc. 000 onservation Way Fort Wayne, IN 0 www.waterfurnace.com S00HN 0/ Product: Type: Size: Document: Envision Series - Air Handler Hydronic or -0A - Tons Specification atalog 0 WaterFurnace International, Inc., 000 onservation Way, Fort Wayne, IN 0-. WaterFurnace has a policy of continual product research and development and reserves the right to change design and specifications without notice. 00 WaterFurnace International, Inc.