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FIELD WIRING FOR ECB21 6, 7, OR 8 KW SINGLE--PHASE
HEATERS
/_
S1
THERMOSTAT
r
, [-r-_- ÷
-*-_---_-J
I
^
_r-'_--_,
t-
/,\
I_
I
,, I
II
I
I
L
_ _-I,-----.-,L----"
IL F_J'-
I
""
A
TB1
TERMINAL
BOARD
L_ I____
, I
Z_
r"-'_
i
/
NOTE* *USE COPPER
|
CONDUCTORS
ONLY
1
CIRCUIT
NO. 2
L2 L1
208- -240/60/1
//_TO
EXTERNAL LOAD 24VAC AT .50 AMP MAXIMUM.
_/P2
K3
INDOOR BLOWER
9
J2
RELAY
K32 HEAT RELAY
_3
LI_
BLACK
BLACK
TB2
TERMINAL
BLOCK
P2- -8
//
P2
X/
I \
/J2
TRANSFORMER
/--\
I
I
J2* -8
R
)
NEC/CEC CLASS 2 3VA
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
(ELECTRIC HEAT)
REFER TO JUMPER
APPLICATION TABLES tN
TYPICAL
HEAT PUMP OR COOLING
WIRING
DIAGRAMS IN THIS INSTRUCTION.
A
FACTORY INSTALLED JUMPERS
A
OMMON TERMINAL "C" LABLED "X" ON
EARLY MODELS CCB1- -1.
LINE VOLTAGE
FIELD INSTALLED
CLASS 2 VOLTAGE
FIELD iNSTALLED
NEC/CEC
NOTE-*ALL
OTHER
WIRES FACTORY INSTALLED
FIGURE 11
Page 8
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