Installation Guide

ManualsBrandsWinchester ManualsForced Air Furnaces40,878 BTU 2 - 3.5 Ton Mobile Home Electric Furnace with EMC Blower Motor

HamiltonHomeProducts CanalWinchester,OH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

1 – General 1 7 – Line Voltage Wiring 8

2 – Safety 3 8 – Field Installed Heat Kit 12

3 – Downflow Return Air and Clearance Requirements 4 9 – Thermostat Wiring and Connections 13

4 – Downflow Supply Air and Duct Connector Installation 5 10 – Motor, Blower and Furnace Start Up 16

5 – Furnace Installation 7 11 – Final System Checkout 17

6 – Upflow Configuration 8 12 – Wiring Diagrams 18

LIST OF FIGURES

1 – Furnace Dimensions 2 16 – Separate Thermostats, Separate Furnace Wiring Diagram 14

2 – Closet Clearances 4 17 – Separate T’stat, Separate Furnace & Trans Wiring Diagram 14

3 – Typical Closet Installations 4 18 – Same T’stat, Separate Furnace, Trans and Heat Pump 14

4 – Typical Alcove Installations 5 19 – Same T’stat, Separate Furnace, Trans and Cool Unit 14

5 – Clearance – Access for Service 5 20 – Single Stage Heat / Cool T’stat, with a Two Stage Furnace 15

6 – Duct Connector Depths 5 21 – Two Stage Heating / Cooling T’stat, Furnace Connections 15

7 – Duct Connector and Floor Base Installations 6 22 – Typical Two Stage Heat Pump/Heating/Cooling T’stat, Furnace 16

8 – Duct Connector Measurements 6 23 – Constant Torque motor Terminals 17

9 – Duct Connector Installation in the floor 6 24 – Blower Assembly and Blower Deck 17

10 – Return Air Grille Frame Assembly 7 25 – Wiring Diagram No Heat Model w/ Blower Motor 18

11 – Return Air Filter Frame Assembly 7 26 – Wiring Diagram 10 kW, w/ C.T. Blower Motor 19

12 – Typical Upflow Installation 8 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 2 8 – Electrical Data 10

2 – Model Nomenclature 2 9 – Field Installed Electric Heat Kit Model Numbers 12

3 – Optional Cooling Cabinets and Return Air Grille 2 10 – Field Installed Electric Heat Kit Model Nomenclature 12

4 – Clearances to Combustibles 4 11 – Low Voltage Wire Gauge and Max Lengths 13

5 – Duct Connectors 5 12 – Recommended Heat/Cool T’stat Wire Color Code 15

6 – Wiring Requirements – Single Branch Circuit 9 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 content (22 pages)

PAGE 1
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 1 – General 2 – Safety 3 – Downflow Return Air and Clearance Requirements 4 – Downflow Supply Air and Duct Connector Installation 5 – Furnace Installation 6 – Upflow Configuration 1 3 4 5 7 8 7 – Line Voltage Wiring 8 – Field Installed Heat Kit 9 – Thermostat Wiring and Connections 10 – Motor, Blower and
PAGE 2
Figure 1: Furnace Dimensions Models Input kW With "A" Coil Air Temperature Range - °F Max Outlet Air Temperature Blower Size Max. External Static Pressure In W.C. Thernostat Circuit Air Handler Cabinet Height ALL 10 NO 40-100 180 ALL ALL 12 15 NO NO 40-100 40-100 180 185 10 x 9 0.3 24 VAC, 60 HZ, 40 VA 33 Inches ALL 20 NO 40-100 185 Table 1: Electric Furnace Model Specifications Available Blower Motors 1.
PAGE 3
Safety Requirements SECTION II: SAFETY This is a safety alert symbol. When you see this symbol on labels or in manuals; be alert to the potential for personal injury. Understand and pay particular attention to the signal words DANGER, WARNING, or CAUTION. DANGER: indicates an imminently hazardous situation, which if not avoided, will result in death or serious injury. WARNING: indicates a potentially hazardous situation, which if not avoided, could result in death or serious injury.
PAGE 4
Codes The furnace must be installed in accordance with the following codes.  Standard for the Installation of Air Conditioning and Ventilating Systems (NFPA 90A)  Standard for the Installation of Warm Air heating and Air Conditioning Systems (NFPA 90B)  National Electrical Code (NFPA 70)  Canadian Electrical Code, Part I (CSA C22.1)  All local codes (State, City, and Township) SECTION IlI: RETURN AIR AND CLEARANCE REQUIREMENTS Access for servicing is an important factor in the location of any furnace.
PAGE 5
Provisions shall be made to permit the air in the rooms and the living spaces to return to the furnace. Failure to comply may cause a reduction in the amount of return air available to the blower, causing reduced air flow resulting in improper heating of the living space. The reduced air flow may cause the furnace to cycle on the limit causing premature heating element failure.
PAGE 6
Installing the Duct Connector 1. Attach the four (seal strip) foam tape gaskets provided with the duct connector alongside the perimeter of the duct opening to seal the duct connector where it attaches to the top of the duct as shown in Figures 7, 8 and 9. 2.
PAGE 7
SECTION V: FURNACE INSTALLATION Installing the Furnace with a Return Air Grille Frame Assembly Alcove Installation This kit is approved for use in an alcove – heating only installation without an air conditioning coil. The return air grille frame assembly is available in 18” height and 24” height.
PAGE 8
SECTION VI: UPFLOW CONFIGURATION This kit is approved for use in an alcove or closet installations with an approved air conditioning coil. The upflow coil cabinets are available in a 28” and 36” height. The upflow configuration requires either a 20” tall return air cabinet or a 24” tall return air cabinet under the coil cabinet making the total height of the furnace, coil cabinet and return air cabinet heights 81” or 93”.
PAGE 9
8. Insert the green wire into the ground lug and tighten the set screw. Dual Circuit Line Wiring Connections: 12kW, 15kW or 20kW Models 9. You will need to insert the black wire from the second power supply into the L1 screw terminal on the second circuit breaker down from the top and tighten the set screw to clamp down on the wire. 10.
PAGE 10
12 kW Heater Amps ‐ 208/240 CAC 15 kW Heater Amps ‐ 208/240 VAC 20 kW Heater Amps ‐ 208/240 VAC Indoor Blower Type Indoor Blower Amps Total Electric Heater kW Circuit Number Circuit Load ‐ FLA ‐ 230 VAC Heater ‐ kW Min. Wire Size (90°C) Minimum Wire Size (75°C) Minimum Wire Size (60°C) Ground Wire Size Max Fuse/Circuit Breaker Amps AIR HANDLER MODELS WE30B4 43.88/50 54.84/62.5 N/A Constant Torque 3.20 12 15 20 1 2 1 2 1 2 28.20 25.00 44.87 20.83 44.87 41.
PAGE 11
Figure 13: Control Box Component Locations Casing or cabinet must be permanently grounded in accordance with the National Electrical Code or other applicable codes. For personal safety be sure to turn the electrical power “OFF” at the main circuit panel (Home Circuit Breaker Box) and at the control box circuit breakers before attempting any service or maintenance operations. Homeowners should never attempt to perform any maintenance which requires opening the furnace control box door. Refer to Figure 14.
PAGE 12
SECTION VIII: FIELD INSTALLED ELECTRIC HEATER KITS This instruction covers the physical installation of the following electric heat kits on the WE30 series models. Refer to Tables 68 for electrical specifications. To prevent damage, carefully insert the electric heating assembly through the rectangular opening in the front of the discharge opening so the heat element support rod is seated into the hole on the back side of the discharge opening. Field Installed Electric Heat Kit Model No.
PAGE 13
SECTION IX: THERMOSTAT WIRING AND CONNECTIONS Thermostat Wiring Thermostat wires connect through side of furnace and should be no smaller than 24 gauge. Refer to Table 11 for recommended wire gauge, lengths and maximum current for each wire gauge. Maximum Wire Length 0 - 112 Feet 0 - 70 Feet 0 - 30 Feet Thermostat Thermostat Wire Wire Gauge Maximum Current 18 3.0 Amps 20 3.0 Amps 22 3.
PAGE 14
Separate Heating and Cooling Units, Separate Thermostats If the heating/cooling system in your house is a central heating and cooling system using the furnace transformer but the furnace and the cooling unit are controlled by separate thermostats then the use of a thermostat interlock switch is required in order to prevent the furnace and the air conditioner from operating at the same time. Refer to Figures 16 and 17.
PAGE 15
Wire Color RED WHITE GREEN YELLOW BROWN BLACK Description 24 VAC HEAT (1st Stage Heat) Indoor Fan Cooling - Stage 1 24 VAC Common HEAT (Optional 2nd Stage Heat) Letter Code R W G Y BRN BLK Air Handler Pig Tail Thermostat Wire Color Connection Red R White W or W1 Green G Yellow Y or Y1 Brown C Black W2 Condenser Connections N/A N/A N/A Y or Y1 C W2 Note: Single stage thermostat on two stage models must connect white (W1) pigtail wire and black (W2) pigtail wire together in low voltage box with W wire fr
PAGE 16
R 24 VAC Transformer Optional Outdoor G Temperature Switch G G W/E W C C W2 W2 W2 Y Y Y Air Handler O O Thermostat Add Jumper if Outdoor Stat is not used W/E Transformer Common To avoid personal injury or property damage, make certain that the motor leads cannot come into contact with non-insulated metal components of the unit. Selecting the Constant Torque Blower Speed This furnace uses the constant torque high efficiency motor. This motor operates on 240 VAC.
PAGE 17
6. Turn on all electrical supply circuits to the furnace at the main service (House Circuit Breaker) panel. Figure 23: Constant Torque Motor Terminals Replacing the Blower Motor 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. Turn off all electrical supply circuits to the furnace at the main service panel. Remove furnace front door and switch furnace circuit breaker(s) to “OFF” Disconnect the plastic wire plug that has the wires that go to the motor terminals from the control box.
PAGE 18
BLK G Y W C TR GGS 24 VAC CLASS 2 61MH0028A Open all disconnects before servicing this unit.
PAGE 19
Figure 26: 10kW Factory Installed Electric Heat Wiring Diagram with a Constant Torque blower motor. NOTE: IF ANY OF THE ORIGINAL WIRE SUPPLIED WITH THIS UNIT MUST BE REPLACED. IT MUST BE REPLACED WITH TYPE 105°C THERMOPLASTIC OR ITS EQUIVALENT. G Y W C Fuse 3 Amp TR 2 WHT 1 LS1 61MH0028A Open all disconnects before servicing this unit.
PAGE 20
Figure 27: 12 kW Factory Installed Electric Heat Wiring Diagram with a Constant Torque Blower Motor. NOTE: IF ANY OF THE ORIGINAL WIRE SUPPLIED WITH THIS UNIT MUST BE REPLACED. IT MUST BE REPLACED WITH TYPE 105°C THERMOPLASTIC OR ITS EQUIVALENT.
PAGE 21
Figure 28: 15 kW Factory Installed Two Stage Electric Heat Wiring Diagram with a Constant Torque Blower Motor. NOTE: IF ANY OF THE ORIGINAL WIRE SUPPLIED WITH THIS UNIT MUST BE REPLACED. IT MUST BE REPLACED WITH TYPE 105°C THERMOPLASTIC OR ITS EQUIVALENT.
PAGE 22
Figure 29: 20 kW Factory Installed Two Stage Electric Heat Wiring Diagram with a Constant Torque Blower Motor. NOTE: IF ANY OF THE ORIGINAL WIRE SUPPLIED WITH THIS UNIT MUST BE REPLACED. IT MUST BE REPLACED WITH TYPE 105°C THERMOPLASTIC OR ITS EQUIVALENT. Subject to change without notice Copyright by Hamilton Home Products 2019.