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FIELD WIRING FOR ECB21 10.0 KW SINGLE--PHASE
HEATER
//_
S1
THERMOSTAT
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NOTE-*USE
COPPER
CONDUCTORS
ONLY
/k
A
Jl
CIRCUIT
NO 2
L2 L1
208- -240/60/1
K3
INDOOR
BLOWER
RELAY
P2@
J2_/
K33 HEAT RELAY
wq
_
BLACK
BLACK
TB2
TERMINAL
BLOCK
TO EXTERNAL LOAD 24VAC AT .50 AMP MAXIMUM.
NEC/CEC CLASS 2
A
z_
SEE FIGURE 7 FOR TYPICAL HEAT PUMP T'STAT WIRING.
EMERGENCY HEAT RELAY (USED ONLY IF OUTDOOR
THERMOSTAT
IS USED) FIELD- -PROVIDED AND IN- -
STALLED NEAR INDOOR UNIT. 24VAC 5VA MAXIMUM
NEC/CEC CLASS 2.
THERMOSTAT
HEAT ANTICIPATION
SETTING .4 AMP
/%
TRANSFORMER
I
T1
E
J2
8 _
P2
HEg) HE(2)
@@
_i
RED
I
LINE VOLTAGE
FIELD INSTALLED
CLASS 2 VOLTAGE
FIELD
INSTALLED
NEC/CEC
NOTE-*ALL
OTHER
WIRES FACTORY
INSTALLED
FACTORY INSTALLED JUMPERS
z_
GROUND
qll'
(ELECTRIC HEAT)
//_
COMMON TERMINAL "C" LABLED "X" ON
EARLY MODELS CCBt- -1.
WHEN TWO- -STAGE T'STAT IS USED, CONNECT
SECOND- -STAGE HEAT BULB TO TERMINAL "W2."
REMOVE
JUMPER
BETWEEN TERMINALS
"R" AND "W2."
Z_
REFER TO JUMPER APPLICATION
TABLES IN
TYPICAL HEAT PUMP OR COOLING
WIRING
DIAGRAMS IN THIS INSTRUCTION.
FIGURE 12
Page 9
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