American Standard GRWF130A94A0A Installation Manual page 42

Option 3 - Field Installed Room
Thermostat, Orange J2 jumper
removed
120 VAC Power
(Field Wiring)
L1 N
(HV)
Remove J1 if
External Limit
is Connected
Option 4 - Field Installed Room
Thermostat, Orange J2 jumper removed,
Blue J4 jumper removed
120 VAC Power
(Field Wiring)
L1 N
(HV)
Remove J1 if
External Limit
is Connected
18-CG02D1-4
42
External
Limits
(e.g., LWCO)
(Field Supplied)
G
L1
1 2 3 5 6 7 8
4
L N
J2
LWCO
POWER
(ORANGE)
J1
J2
Removed
External
Limits
(e.g., LWCO)
(Field Supplied)
G
L1
1 6 7 8
2 3 5
4
L N
J2
POWER LWCO
(ORANGE)
J1
J2
Removed
System Configuration
1. Pump Runs on Call from Room Thermostat OR
if Water Temperature is Above Supply Water
Thermostat setting
2. Burner Cycles with Supply Water Thermostat
Setup
Circ Pump 1. Remove Orange J2 jumper
(Field Supplied)
External Limits (where required)
1. Remove Black J1 jumper
2. Connect External Limit to 5 & 6 Terminals
G
N
9 10 11
12 13 14 15 16 17 18
L
N
PUMP
System Configuration
1. Pump Controlled by Room Thermostat
2. Burner Cycles with Supply Water Thermostat
Setup
1. Remove Orange J2 jumper
2. Remove Blue J4 jumper
Circ Pump External Limits (where required)
(Field Supplied)
1. Remove Black J1 jumper
2. Connect External Limit to 5 & 6 Terminals
G
N
9
10 11
12 13 14 15 16 17 18
L N
PUMP
Room Thermostat
(Field Supplied)
(LV)
19 20 21 22 24
23
J5
J4
T T
(BLUE) (YELLOW)
J4
J5
Room Thermostat
(Field Supplied)
(LV)
19 20 21 22 23 24
J5
J4
T T
(YELLOW)
(BLUE)
J5
J4
Removed