Honeywell V8943C ユーザーズマニュアル

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V4943/V8943B,C,N; V4944/V8944B,C,L,N REGULATING DIAPHRAGM GAS VALVES
65-0214—08
8
Fig. 10. Preparing the piping and installing the valve.
Wiring
WARNING
Electrical Shock Hazard.
Can cause serious injury, death or equipment 
damage.
Disconnect the power supply before making 
connections to prevent electrical shock and equipment 
damage.
1. All wiring must comply with applicable electrical codes, 
ordinances and regulations. Use NEC Class 1 (line 
voltage) wiring.
2. For normal installations, use moisture-resistant No. 14 
wire suitable for at least 167°F (75°C) when using a 
flame safeguard primary control, or for at least 194°F 
(90°C) when using a flame safeguard programming 
control.
3. For high temperature installations, use 
moisture-resistant No. 14 wire selected for a temperature 
rating above the maximum operating temperature.
4. Check the power supply circuit. The voltage and 
frequency must match those of the valve.
5. See Fig. 11 through 14 for typical field wiring 
connections. Follow the burner manufacturer wiring 
diagram, if provided.
6. Make wiring connections at the electrical wires provided 
at the top of the valve.
CAUTION
Equipment Damage Hazard.
Miswiring can cause equipment damage.
1. Label all wires prior to disconnection when servicing 
valves. Wiring errors can cause damage to the 
equipment through improper and dangerous 
operation. 
2. Verify proper operation after servicing.
3. After the installation is complete, cycle the valve 
several times with the manual fuel shutoff cock 
closed. Make sure the valve and actuator function 
properly.
4. If the installation is gas tight and functioning properly, 
proceed to the Checkout section.
CORRECT
WRENCH 
CORRECTLY
APPLIED NEXT 
TO PIPE BEING 
INSERTED
INCORRECT
CORRECT
TWO CLEAN
THREADS,
MODERATE
AMOUNT
OF DOPE
EXCESS DOPE CAN PUSH DISK 
OFF THE
VALVE 
SEAT
LOOSE 
CHIPS
NORMAL  
FULL
THREAD
CORRECT
CORRECT
NORMAL  
FULL THREAD
REAM PIPE,
BLOW OUT CHIPS (THAT 
CAN LODGE ON SEAT)
TOO LONG; 
DISTORTS 
VALVE SEAT
INCORRECT
TOO LONG,
DISTORTS 
VALVE SEAT
AVOID 
USING
VALVE AS 
HANDLE
VISE GRIPS
END NEXT
TO PIPE
BEING
INSERTED
INCORRECT
WRENCH 
HERE STRAINS
VALVE BODY
M6877