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Winchester,

 

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43110

 

61MH0037A

 

INSTALLATION MANUAL 

DOWNFLOW SINGLE AND TWO STAGE ELECTRIC FURNACE WITH: 

FACTORY INSTALLED ELECTRIC HEAT, OR

NO HEAT MODELS WITH FIELD INSTALLED ELECTRIC HEAT KITS

MODELS: WE30 SERIES 

LIST OF SECTIONS 

– 

General

– 

Line 

Voltage 

Wiring

8

– 

Safety

– 

Field 

Installed 

Heat 

Kit

12

3 – Downflow Return Air and Clearance Requirements 

9 – Thermostat Wiring and Connections 

13 

4 – Downflow Supply Air and Duct Connector Installation 

10 – Motor, Blower and Furnace Start Up 

16 

– 

Furnace 

Installation

11 

– 

Final 

System 

Checkout

17

– 

Upflow 

Configuration

12 

– 

Wiring 

Diagrams

18

LIST OF FIGURES 

1 – Furnace Dimensions 

16 – Separate Thermostats, Separate Furnace Wiring Diagram 

14 

2 – Closet Clearances 

17 – Separate T’stat, Separate Furnace & Trans Wiring Diagram 

14 

3 – Typical Closet Installations 

18 – Same T’stat, Separate Furnace, Trans and Heat Pump 

14 

4 – Typical Alcove Installations 

19 – Same T’stat, Separate Furnace, Trans and Cool Unit 

14 

5 – Clearance – Access for Service 

20 – Single Stage Heat / Cool T’stat, with a Two Stage Furnace 

15 

6 – Duct Connector Depths   

21 – Two Stage Heating / Cooling T’stat, Furnace Connections 

15 

7 – Duct Connector and Floor Base Installations   

22 – Typical Two Stage Heat Pump/Heating/Cooling T’stat, Furnace  16 

8 – Duct Connector Measurements 

23 – Constant Torque motor Terminals 

17 

9 – Duct Connector Installation in the floor 

24 – Blower Assembly and Blower Deck 

17 

10 – Return Air Grille Frame Assembly  

25 – Wiring Diagram No Heat Model w/ Blower Motor 

18 

11 – Return Air Filter Frame Assembly  

26 – Wiring Diagram 10 kW, w/ C.T. Blower Motor 

19 

12 – Typical Upflow Installation 

27 – Wiring Diagram 12 kW, w/ C.T. Blower Motor 

20 

13 – Control Box Component Locations 

11 

28 – Wiring Diagram 15 kW w/ C.T. Blower Motor 

21 

14 – Control Box Cover and Circuit Breaker Location 

11 

29 – Wiring Diagram 20 kW w/ C.T. Blower Motor 

22 

15 – Control Box Power, Low Voltage Wire Locations 

13 

LIST OF TABLES 

1 – Electric Furnace Model Specifications 

– 

Electrical 

Data

10

2 – Model Nomenclature 

9 – Field Installed Electric Heat Kit Model Numbers 

12 

3 – Optional Cooling Cabinets and Return Air Grille 

10 – Field Installed Electric Heat Kit Model Nomenclature 

12 

4 – Clearances to Combustibles 

11 – Low Voltage Wire Gauge and Max Lengths   

13 

5 – Duct Connectors 

12 – Recommended Heat/Cool T’stat Wire Color Code 

15 

6 – Wiring Requirements – Single Branch Circuit  

13 – Recommended Heat/Cool/HP T’stat Color Code 

15 

7 – Wiring Requirements – Dual Branch Circuit   

10 

14 – Constant Torque (C.T.) Motor Terminal Connections 

16 

SECTION I: GENERAL 

The following list includes important facts and information 
regarding the electric furnace and its inclusions.  

1.

Furnace is rated at 240 volts AC at 60 Hertz

2.

Furnace is the same size for all models

3.

Four-wire thermostat operation for heating and cooling

4.

A/C ready furnaces equipped with blower for A/C or
Heat Pump operation

5.

Holding Strap furnished with furnace

6.

This furnace is designed for downflow application

7.

This furnace must not be operated without furnace door
installed

NOTE: This furnace and its components listed on the 
A/C and Heat Pump equipment sticker were listed in 
combination as a system by ETL for the United States. 

Blower Speed Tap Description  

Tap 5 – High Speed – Cooling or Heat Pump Operation 
Tap 4 – Med-High Speed – Cooling or Heat Pump Operation 
Tap 3 – Medium Speed – Cooling or Heating Operation 
Tap 2 – Med-Low Speed – Heating Operation 
Tap 1 – Low Speed – Constant Circulation Operation Only. 
Tap 1 air circulation is around 200 CFM. This is not enough 
air flow for heating, cooling or heat pump operation. If Tap 1 
is used for cooling the evaporator will freeze up. If Tap 1 is 
used for heating with electric heat the limits will open in a 
very short time frame. 

DO NOT USE SPEED TAP 1 FOR HEATING OR 
COOLING

SAVE THIS MANUAL FOR FUTURE 
REFERENCE

 

Summary of Contents for WE30B Series

Page 1: ...er Location 11 29 Wiring Diagram 20 kW w C T Blower Motor 22 15 Control Box Power Low Voltage Wire Locations 13 LIST OF TABLES 1 Electric Furnace Model Specifications 2 8 Electrical Data 10 2 Model No...

Page 2: ...Single Stage Heating 30 Table 2 Furnace Model Nomenclature Coil Cabinet Model Front Door of Cabinet Open Top 17 3 4 x 21 3 4 Maximum Air Flow CFM 1 Pleated Air Filter In The Door 2 Pleated Air Filter...

Page 3: ...ce heating cooling equipment Untrained service personnel can perform basic maintenance functions such as cleaning of exterior surfaces and replacing the air filters Observe all precautions in the manu...

Page 4: ...y a closet or alcove must have a certain total free area opening for the return air For A C and HP Furnaces 1 3 HP Blower Minimum 200 in free area opening Use Return Grille or Coil Cabinet For A C and...

Page 5: ...to use SECTION IV SUPPLY AIR AND DUCT CONNECTOR INSTALLATION Duct Connectors 90 DCU0 XX Duct Connectors The duct connector is used to provide a sealed connection between the furnace base and a under...

Page 6: ...the insulation around the perimeter of the duct connector opening 5 Install the floor base over the floor opening with the flanges on the 11 x 13 inch opening facing down Refer to Figures 8 and 9 6 Lo...

Page 7: ...to the floor by drilling two holes through the furnace base and the floor base at the right and left front inside corners of the cabinet Use two screws to secure the furnace to the floor Figure 10 Re...

Page 8: ...e coil cabinet 11 Place the cooling cabinet front door on the unit by inserting the tabs in the bottom of the door into the slots in the coil shelf line up the strike in the front flange of the top co...

Page 9: ...Electrical Code Part I CSA C22 1 and local codes for additional requirements concerning supply circuit wiring Electrical data can be found in Tables 6 7 and 8 IMPORTANT All installation on field wiri...

Page 10: ...er supply will require circuit breaker jumper bar or a jumper wire Refer to the National Electrical Code Table 250 95 for Non Sheathed Conductor Ground Wire Ground conductor must be the same size and...

Page 11: ...le codes Figure 14 Control Box Cover and Circuit Breaker Location Dual Element Box For personal safety be sure to turn the electrical power OFF at the main circuit panel Home Circuit Breaker Box and a...

Page 12: ...cated on the blower housing 6 Follow the instructions in the USERS INFORMATION MANUAL to properly start up the air handler POWER SUPPLY CONNECTIONS If the air handler has been installed prior to insta...

Page 13: ...Installation The thermostat heat anticipator must be set at 0 7 Amps if the thermostat has a manual heat anticipator adjustment This setting should be checked at the time of installation The thermost...

Page 14: ...R Figure 16 Separate Thermostats Separate Air handler and Cooling Unit G R W R G Y Heating Thermostat Cooling Thermostat C Y R G W C COM HEAT COOL Thermostat Interlock Switch Air Handler 24 VAC Transf...

Page 15: ...8 strain relief in the control box and place the thermostat wire cable next to the low voltage terminal block 6 Connect the Red 24 VAC supply thermostat wire to the red pigtail wire and secure the two...

Page 16: ...peratureSwitch W2 J u m p e r Figure 22 Typical Heat Pump 2 Stage Heating Cooling Connections SECTION X MOTOR BLOWER AND FURNACE START UP Selecting the Constant Torque Blower Speed This furnace uses t...

Page 17: ...s to the furnace at the main circuit panel House Circuit Breaker 14 Set the thermostat to the desired temperature Figure 24 Blower Assembly and Blower Deck SECTION XI FINAL SYSTEM CHECKOUT 1 Refer to...

Page 18: ...BLK W H T G R N Y E L L2 B L K WHT B LU B L K BM G R N GGS Y E L C L A S S 2 CLASS 2 CC COMPRESSOR CONTACTOR RVS REVERSING VALVE SOLENOID LEGEND TB TERMINAL BLOCK BMFP 6 PIN MOLEX BLOWER MOTOR PLUG A...

Page 19: ...L1 HC1 T2 L2 G R N GGS C L A S S 2 WHT W H T WHT CLASS 2 CC COMPRESSOR CONTACTOR RVS REVERSING VALVE SOLENOID LEGEND TR TRANSFORMER BMFP 6 PIN MOLEX BLOWER MOTOR PLUG ASSEMBLY GND GROUND CONNECTION B...

Page 20: ...N B R N BRN BLK WHT BLK BLK THERMOSTAT W2 BLK BLK BLK BLK B L K B L K B R N BRN B R N BRN B R N HPM 7 RED ST1 8 BLK L1 9 BLU ST4 Y E L L 2 G R N G N D P R P S T 3 B L K S T 5 B R N 2 4 V C O M BRN G N...

Page 21: ...40 VAC 24 VAC BLK 1 BLK SUPPLY WIRING XMC0 402EBBC Contactor L1 T1 L2 T2 HC1 BLU BLU L1 GND G BLK WHT G R N R E D HC1 HTR1 BLK BLU RED RED T1 C B L1 C irc u it 1 L2 C B C irc u it 1 B L K HC1 T2 L2 1...

Page 22: ...BRN BLU GND BLU PRR ST3 ORN ST2 B R N 2 4 V C O M B L U S T 4 O R N S T 2 P R P S T 3 B L U O R N P U R B L U B L U W H T W B R N BLU B L U B L K B L K R E D R E D FOR A TWO STAGE HEATING THERMOSTAT R...

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