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ThermalFlo Installation and User’s Guide
Wiring Diagram
473073
Contactor
Compressor
Incoming 220 VAC
Power Connection
R
C
S
REMOTE
10K
Thermistor
1
2
3
4
5
6
Capacitor
NC
NO
Fan
Relay
COM
Fan
Green
Water Pres Sw
Lo Ref Pres SwHi Ref Pres Sw
460812, 460813, 460814, 460815, 460822, 460804
TBL
TBR
Optional
Reversing Valve on
460822
Switch factory set to H
for 460812, 460813,
460814, 460815, set to
C for 460804, and set to
AU for 460822
(on back of circuit board)
Transformer
24
VAC
208 VAC
COM
240 VAC
1
2
3
4
5
6
7
8
WHITE
WHITE
WHITE
WHITE
BLUE
YELLOW
BLUE
YELLOW
WHITE
WHITE
BLACK
RED
BLACK
RED
RED
RED
BLACK
BLACK
PURPLE
RED
BLACK
BLACK
RED
PURPLE
50 mf 7.5 mf
PURPLE
BLACK
BLACK
WHITE
PURPLE
BLUE
BLUE
YELLOW
PURPLE
ORANGE
BLACK
BROWN
PINK
BROWN
TAN
BROWN
BLACK
Red
RED
BROWN
BLACK
GREEN
Heat Pump Control Board
TEMPERATURE
24 VAC
HCAU
THERMISTER
WATER
FLOW
FA
SPA
COM
POOL
N
S
OLENOID
COMPRESSOR
HI
PRES
LOW
PRES
Figure 11.