Trane 18-EB24D1-19, Installer'S Manual

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Page 24
Installer’s Guide
COMMON
FAN
COMPRSSOR
1ST STAGE ELECTRIC HEAT
2ND STAGE ELECTRIC HEAT
SWITCHOVER VALVE
DEFROST CONTROL 'T' SIGNAL
24 VOLTS
B
G
Y
W1
W2
O
T
R
UNIT LOW VOLTAGE AREA
TYPICAL THERMOSTAT
UNIT HEATER AREA
ELECTRIC
HEATER
CONTROL
BOX
POLARIZED
PLUG
UNIT CONTROL BOX
3 PH
POWER
UNIT
NOTE 1,8
3 PH
POWER
HEATER
1 PH
POWER
1 PH
POWER
UNIT CONTROL
BOX
UNIT HEATER AREA
FACTORY PROVIDED
FIELD CONNECTED
WIRES
(BL)
(YL)
(GR)
(PR)
(OR)
(OR)
B
G
Y
W1
W2
O
T
R (BR)
(RD)
(GR)
(BL)
(WH)
(WH)
(YL)
(OR)
1 PH
POWER
3 PH
POWER
GROUND
WIRE
SINGLE POWR ENTRY
W1
W2
(WH)
(WH)
W1
W2
(WH)
(WH)
HEATER SECOND STAGE AMBIENT
TEMPERATURE LOCKOUT
NOTE 7,8
UNIT LOW
VOLTAGE
AREA
OUTDOOR
THERMOSTAT
ACCESSORY
BAYSTAT033A
NOTE 10
HEATER AMBIENT
TEMPERATURE LOCKOUT
NOTE 7,8
UNIT LOW
VOLTAGE
AREA
OUTDOOR
THERMOSTAT
ACCESSORY
BAYSTAT033A
NOTE 10
TYPICAL THERMOSTAT
TYPICAL THERMOSTAT
TYPICAL 2-STAGE
THERMOSTAT
UNIT LOW
VOLTAGE AREA
UNIT LOW
VOLTAGE AREA
TO COMPR.
CONTACTOR
ELECTRIC
HEATER
CONTROL
BOX
HEATER
FUSES UNIT
FUSES
SPE
ACCESSORY
KIT
TO ECONOMIZER
FACTORY PROVIDED
FIELD INSTALLED WIRES
NOTE 9
(NOT APPLICABLE TO THE
WCM---F MODELS)
FIG. 3 OUTDOOR THERMOSTAT ACCESSORY CONNECTIONS
FIG. 1
SINGLE POWER ENTRY ACCESSORY CONNECTIONS FIG. 2 ECONOMIZER ACCESSORY
CONNECTIONS
GROUND
WIRE
SEE SPEK INSTALLER'S GUIDE
FOR ALL OTHER EXAMPLES
Figure 26. 4WC*3 Field Wiring Diagram
NOTES:
1. FUSED DISCONNECT SIZE, POWER WIRING AND
GROUNDING OF EQUIPMENT MUST COMPLY WITH
CODES.
2. BE SURE POWER SUPPLY AGREES WITH EQUIP-
MENT AND HEATER NAMEPLATE.
3. LOW VOLTAGE WIRING TO BE 18 AWG MINIMUM
CONDUCTOR.
4. SEE HEATER NAMEPLATE FOR CURRENT RATING
OF HEATER USED.
5. SEE UNIT AND HEATER DIAGRAM FOR ELECTRICAL
CONNECTION DETAILS.
6. IF ELECTRIC HEATER ACCESSORY IS NOT
INSTALLED OMIT THE ELECTRIC HEATER, AS-
SOCIATED POWER WIRES AND THE ‘W’ AND ‘X2’
THERMOSTAT WIRES.
7. FIG. 3 DEMONSTRATES CONNECTION OF THE
OUTDOOR THERMOSTAT ACCESSORY ONLY. FOR
FURTHER UNIT CONNECTION DETAILS REFER TO
THE OTHER FIGURES.
8. THE W1 WIRE IS FIRST STAGE ELECTRIC HEAT. IF
THE ELECTRIC HEATER ACCESSORY HAS TWO
HEATING STAGES THE W2 WIRE IS SECOND STAGE
ELECTRIC HEAT.
9. WHEN THE BAYECON101A/102A or
BAYECON200A/201A ECONOMIZER IS INSTALLED,
THE BAYRLAY004A RELAY ACCESSORY KIT IS RE-
QUIRED TO INTERFACE THE ECONOMIZER TO THE
HEAT PUMP FOR PROPER SYSTEM OPERATION.
10. THE BAYSTAT033A OUTDOOR THERMOSTAT AC-
CESSORY KIT CONTAINS A THERMOSTAT AND A
RELAY. THE RELAY IS NOT REQUIRED TO BE USED
IN THIS APPLICATION.