Fig. 4—38YCA036 208/230v, 3 Phase, 60 Hertz
MAY BE FACTORY OR FIELD
INSTALLED
90
50
30
TEST
FIELD SELECTED TIME PERIOD
BETWEEN DEFROST CYCLES (MINUTES)
TEST POINTS, FIELD SPEED UP CYCLE
HEAT CYCLE:
50 MIN ACCELERATED TO 12 SEC
90 MIN ACCELERATED TO 21 SEC
- LEGEND -
FACTORY POWER WIRING
FIELD POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
CONDUCTOR ON CIRCUIT BOARD
COMPONENT CONNECTION
1
/4 - INCH QUICK CONNECT
TERMINALS
FIELD SPLICE
JUNCTION
CAPACITOR (RUN)
CRANKCASE HEATER
COMPRESSOR
CONTACTOR
CIRCUIT BOARD
DEFROST THERMOSTAT
DEFROST RELAY AND CIRCUITRY
DISCHARGE TEMP SWITCH
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
OUTDOOR FAN MOTOR
REVERSING VALVE SOLENOID
LPS
CAP
CH
COMP
CONT
CB
DFT
DR
DTS
HPS
OFM
RVS
23
OF2
CONT
EQUIP
GND
L1
L3
11
21
13
OFM
BLK
BLK
YEL
BRN
YEL BLK
YEL
BLK BLU BLU or YEL
BLU or YEL
BRN
YEL
90
50
30
TEST
C
C
DFT
T1
Y
O
R
BLK
or
ORN
BLK or PNK
BLK
or
ORN
BLK
or
PNK
RVS
DFT
CB
OF1
ORNBLK RED
YEL WHT
C Y 0 R E L G
INDOOR UNIT
TERMINAL BLOCK
INDOOR THERMOSTAT (NOTE #5)
DR
208/230
30 POWER
SUPPLY
LPS DTS HPS
LOGIC
C Y O W2 R
CONNECTION DIAGRAM
W2 W3
C Y 0 R E L GW2
BLU or YEL
RED or BLK
RED
or
BLK
ALERT!
L2
BLU
SEE NOTE #11
BLK
YEL
COMP
T2
T1
T3
CH
YEL
BRN
YEL
CAP
W2
23
EQUIP
GND
L1
11
21
COMP
CONT
13
OFM
CAP
DR
OF1 OF2
RVS
C
DR
R
0 0
R
Y Y
C
DFT
DFT
LOGIC
DR
LPS
DTS HPS
T1
C
CONT
L2
SCHEMATIC DIAGRAM
(LADDER FORM)
L3
CONT
T1
T2
T3
NOTES:
1. COMPRESSOR AND FAN MOTOR FURNISHED
WITH INHERENT THERMAL PROTECTION.
2. TO BE WIRED IN ACCORDANCE WITH
NATIONAL ELECTRIC CODE (N.E.C.)
AND LOCAL CODES.
3. N.E.C. CLASS 2, 24 V CIRCUIT, MIN
40 VA REQUIRED.
4. USE COPPER CONDUCTORS ONLY FROM
DISCONNECT TO UNIT.
5. MUST USE THERMOSTAT AND SUB-BASE
AS STATED IN PRE-SALE LITERATURE.
6. IF INDOOR SECTION HAS A TRANSFORMER
WITH A GROUNDED SECONDARY, CONNECT
THE GROUNDED SIDE TO "C" ON THE
CIRCUIT BOARD.
7. IF ANY OF THE ORIGINAL WIRE, AS
SUPPLIED, MUST BE REPLACED, USE THE
SAME OR EQUIVALENT WIRE.
8. CHECK ALL ELECTRICAL CONNECTIONS
INSIDE CONTROL BOX FOR TIGHTNESS.
9. DO NOT ATTEMPT TO OPERATE UNIT UNTIL
SERVICE VALVES HAVE BEEN OPENED.
10.WHEN DTS, LPS AND HPS ARE NOT
REQUIRED, A JUMPER WILL BE INSTALLED
BETWEEN Y AND T1 ON THE DEFROST
BOARD.
11.IT IS IMPERATIVE TO CONNECT 30 FIELD
POWER TO UNIT WITH CORRECT PHASING.
WRONG PHASING WILL CAUSE REVERSE
ROTATION OF SCROLL COMPRESSOR
WHICH WILL RESULT IN REDUCED CURRENT
DRAW, ELEVATED NOISE LEVEL AND
IMPROPER OPERATION. IF ROTATION IS
REVERSED, SIMPLY INTERCHANGE ANY
TWO OF THE THREE POWER CONNECTIONS
ON THE FIELD SIDE.
CH
321069-401 REV. A
30 MIN ACCELERATED TO 7 SEC
DEFROST CYCLE: 10 MIN ACCELERATED TO 2 SEC
(56 Seiten)
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