WIRING (Continued)
DIAGRAMS FOR SYSTEMS WHERE EXTERNAL TRANSFORMER REQUIRED FOR POWERING FOR ZONE VALVES
BLACK
TO ZONE
VALVES BLACK
RELAY/TRANSFORMER
T2 
T1 
N |
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LINE |
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HOT | 1 | 2 |
C1 |
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B1 |
| B2 |
IGN.
TRANS.
CIRCULATOR
MOTOR
BURNER
MOTOR
Alternate Connections For Relay/Transformer
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| TYPE 829A RELAY |
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| TYPE 809A RELAY |
| BLACK |
| THERM |
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BLACK |
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| BLACK |
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BLACK |
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| 5 | 3 | 1 | HOT |
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| LINE | ||
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| HOT | 6 | 4 | 2 | |
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| LINE | N | |||
1 | 2 | L | L |
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N |
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TO GAS VALVE |
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| TO GAS VALVE AND |
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| TRANSFORMER OR |
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AND TRANSFORMER |
| CIRCULATOR | OIL BURNER |
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| CIRCULATOR | ||
OR OIL BURNER |
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| MOTOR | CONTROL |
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| MOTOR | |
CONTROL |
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Alternate Connections | Alternate Connections |
For Type 809A Relay | For Type 829A Relay |
OPERATION
Automatic (AUTO) (N.C. valve) (Fig. 9)
On a call for by the thermostat, the valve opens and its auxiliary contacts close, providing a low voltage auxiliary circuit for starting the burner and/or circulator. After an elapsed time of about 10 seconds, the valve reaches the full open position. The valve motor now remains energized to keep the valve in the open position. When the thermostat is satisfied, the valve closes by its integral return spring. The auxiliary contacts open,
Manual (MAN) (Fig. 10)
Use manual lever in case of power failure or for servicing the system. If power fails while valve is open, valve will return to the closed position. To manually open the valve, move the manual lever to the "MAN" position and lock in place. The valve will return to the "AUTO" position when the valve is electrically energized. The auxiliary contacts close in the "MAN" position. The manual lever is not operational on normally open (N.O.) valve models.
Normally open models (N.O.) (Fig. 11)
A normally open valve operates opposite to a normally closed valve. It is open in the
CHECKING THE SYSTEM
Turn on the electricity. If gas fired, be sure pilot is lit. Then check each zone separately as follows:
1.Turn thermostat to highest setting. Zone valve for that zone will open and furnace burner will come on as auxiliary circuit is made on valve motor.
2.Turn thermostat to lowest setting. Zone valve for that zone will close and furnace burner will shut off as auxiliary circuit is broken on zone valve.
AUXILIARY |
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| AUXILIARY |
SWITCH |
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| SWITCH |
N.O. |
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| CLOSED |
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A | B | A | B |
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VALVE CLOSED |
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| VALVE OPEN |
POWER 'OFF' |
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| POWER 'ON' |
Fig. 9 Normally close (N.C.) zone valve
AUTO MAN
AUXILIARY
SWITCH
CLOSED
A 
B
VALVE OPEN, MANUAL POSITION
POWER 'OFF'
Fig. 10 Manual operation of normally close (N.C.) valve
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| AUXILIARY |
AUXILIARY |
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| SWITCH |
SWITCH |
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| CLOSED | |
N.O. |
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A | B | A | B |
| VALVE OPEN |
| VALVE CLOSED |
| POWER 'OFF' |
| POWER 'ON' |
Fig. 11 Normally open (N.O.) zone valve
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