Carrier WEATHERMAKERTM TWO-SPEED 38TDB - Manual (Page 9)

A01222
LEGEND
24 VOLT FACTORY WIRING
24 VOLT FIELD WIRING
FIELD SPLICE CONNECTION
RELAY SPDT, PILOT DUTY
24-V COIL (HN61KK324)
OR EQUIVALENT
HUMIDISTAT, OPENS ON
HUMIDITY RISE (HL38MG026)
AIRFLOW SELECTOR
R1
H
AFS
WIRING DIAGRAM NOTES:
1. WIRING MUST CONFORM TO NEC OR LOCAL CODES.
2. UNDERLINED LETTER ON THERMOSTAT TERMINAL INDICATES USAGE. FOR EXAMPLE: O/W2 MEANS O IS ENERGIZED
IN COOLING MODE.
3. REFER TO INDOOR UNIT INSTALLATION INSTRUCTIONS FOR ANY ADDITIONAL FEATURES AND WIRING INFORMA-
TION.
4. NON-PROGRAMMABLE MODEL 2S01–B, WHEN USED IN AIR CONDITIONING INSTALLATION THE R19 JUMPER MUST BE
CUT AND REMOVED.
5. PROGRAMMABLE MODEL 2S01–B MUST HAVE DIP SWITCH C ON WHEN USED IN AIR CONDITIONER APPLICATIONS.
6. THERMIDISTAT DIP SWITCH NO. 1 SHOULD BE SET IN OFF POSITION FOR AIR CONDITIONER APPLICATIONS
(FACTORY DEFAULT).
7. AS AN OPTION O/W2CAN CONTROL SECOND-STAGE HEAT.
8. THERMIDISTAT DIP SWITCH NO. 2 SHOULD BE SET IN THE ON POSITION FOR DUAL CAPACITY COMPRESSOR
OPERATION.
9. TO ACTIVATE DEHUMIDIFY FUNCTION ON FK4 OR FV4, REMOVE J1 JUMPER AT FAN COIL CONTROL BOARD.
10. AS AN OPTION, LOCK FURNACE INTO LOW-FIRE OPERATION AND LET O/W2 CONTROL HIGH FIRE OPERATION. REFER
TO FURNACE INSTALLATION INSTRUCTIONS FOR PROPER SETUP.
11. TO ACTIVATE DEHUMIDIFY FEATURE ON CURRENT STYLE, VARIABLE-SPEED, 80 PERCENT NON-CONDENSING,
FURNACE DISCONNECT GREEN (DEHUM) WIRE FROM G ON FURNACE CONTROL BOARD AND CONNECT TO
DEHUMIDIFY TERMINAL DHUM ON THERMIDISTAT.
12. THE DE JUMPERS MUST BE REMOVED TO ENABLE THE DEHUMIDIFICATION FEATURE ON FURNACE.
Table 2—Accessory Usage
ACCESSORY
REQUIRED FOR
LONG-LINE
APPLICATIONS *
(50-175 FT.)
REQUIRED FOR
SEACOAST
APPLICATIONS
(WITHIN 2 MILES)
Coastal Filter No Yes
Support Feet No Recommended
Puron® Balance-Port Hard
Shut-off TXV
Yes† Yes†
* For tubing line sets between 50 and 175 ft horizontal or 20 ft vertical differential, refer to Application Guideline and Service Manual—Air Conditioners and Heat Pumps
Using Puron® Refrigerant. Crankcase heater and start assist are standard on two-speed units.
† Required for all applications.
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