Carrier 558J Series Service And Maintenance Instructions page 15

RDV1
VALVE
CONDENSER COIL
OUTDOOR AIR
COMPRESSOR
= CLOSED VALVE
= OPEN VALVE
= 3-WAY VALVE
Fig. 19 − Hot Gas Reheat Mode (Reheat 2) – Perfect Humidity] System
Point Name
Humidistat/LTLO DI, 24VAC
Thermostat W1 DI, 24VAC
Econ Y1 DI, 24VAC
Thermostat G DI, 24VAC
24V Power (J1) 24VAC
24V Power (J2) 24 VAC
Econ Y2 DI, 24VAC
COMP1 DO, 24VAC
IFM DO, 24VAC
COMP2 DO, 24VAC
LSV DO, 24VAC
DSV1 DO, 24VAC
NOT LSV DO, 24VAC
DSV2 DO, 24VAC
LEGEND
COMP — Compressor
CTB — Control Terminal Board
DI — Discrete Input (switch)
DO — Discrete Output (switch)
DSV — Discharge (gas) Solenoid Valve
ECON — Economizer
FPT — Freeze Protection Thermostat
IFM — Indoor (supply) Fan Motor
LSV — Liquid Solenoid Valve
LTLO — Low Temperature Lockout
REHEAT — Connection Strip REHEAT (on CTB)
INDOOR LEAVING
LDV1
PERFECT HUMIDITY COIL
VALVE
CIR 1
TXV
METERING
DEVICE
CIR 1
EVAPORATOR COIL
INDOOR ENTERING
Table 2 – Perfect Humidity] Reheat Control Board I/O
Connection
Type
Pin Number
J1A - 1 (1)
J1A - 2 (2)
J1A - 6 (6)
J1B - 1 (7)
J1B - 3 (9)
J2 - 1
J1B - 5 (11)
J1A - 5 (5)
J1B - 4 (8)
J1B - 4 (10)
J2 - 2
J2 - 3
J2 - 4
J2 - 5
AIR
LDV2
VALVE
CIR 2
TXV
METERING
DEVICE
CIR 2
AIR
Unit
Connection
LTLO
CTB - REHEAT - 4
CTB - REHEAT - 5
CTB - REHEAT - 1
CTB - R
CTB - R
CTB - REHEAT - 7
CTB - HEAT - 6
CTB - REHEAT - 2
CTB - REHEAT - 8
FTP (BLK)
DSV
15
RDV2
VALVE
CONDENSER COIL
OUTDOOR AIR
COMPRESSOR
C13853
Note
2 - circ only
2 - circ only
2 - circ only