White Rodgers 8J48A WIRING AND OPERATION cont’d, Alternate Connections for using Separate

WIRING AND OPERATION (cont’d)

Thermostat

W-R

2

		Z	R B
	8J48A	BL	Low Limit
			Circulator
			Control
TV	T	W	W

1361

Zone 1 3 Valves

Z							NOTE: Remove external jumper
		C1		C2	Circulator		between W and Z terminals
B1	B3						Figure 7. Alternate Connections for using Separate
						Motor
		L1		L2
							Low Limit-Circulator Control on
							Boiler with Tankless Domestic Coil
24V Hot Neutral
Gas			LINE
Valve

Figure 6. Typical Connections for

Zoning with 2-Wire Zone Valves

Thermostat

Thermostat

Thermostat

Zone 1

Zone 2

Zone 3

829A

Field-

829A

Field-

Installed

Installed

Relay

Jumper

Relay

Jumper

5

3

1

5

3

1

6

4

2

6

4

2

8J48A

Factory-

T

W

TV

Installed

Jumper

TP

Z

B

Line Voltage

C1

C2

Low Voltage

B1

B2

B3

L1

L2

Circulator

Circulator

Circulator

Zone 1

Zone 2

Zone 3

Neutral

36C Series

120 V

Hot

Gas Valve

TR TH-TR TH

Figure 8. 8J48A - 24 Volt Systems Zoned with Circulators

Thermostat

Thermostat

Thermostat

Zone 1

Zone 2

Zone 3

829A

Field-

829A

Field-

Installed

Installed

Relay

Jumper

Relay

Jumper

5

3

1

5

3

1

6

4

2

6

4

2

8J48A

Factory-

T

W

TV

Installed

Jumper

TP

Z

B

Line Voltage

C1

C2

Low Voltage

B1

B2

B3

L1

L2

Circulator

Circulator

Circulator

To 750 MV

Zone 1

Zone 2

Zone 3

Neutral

Thermopile

120 V

36C Series

Hot

Gas Valve

PG TH-PG TH

Figure 9. 8J48A - Millivolt Systems Zoned with Circulators