PT-V1C
PT-V1C Gas Valve
Multi functional gas valve + control system for gas burning appliances
* Applications: Domestic space heaters, fireplaces ...etc.
* Approvals: CSA (USA/Canada) Pending
* Normative
reference: ANSI Z21.78
* Main Features:
---Double automatic shut-off valve
---Servo-pressure regulator
---Pilot flame adjustment
---Step motor modulation
Pucada.Tech
V1-0316
PT-V1C Gas Valve Description
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Pressure Regulator By Step Motor
Pilot Adjusting Screw
Inlet Pressure Test Point
Outlet Pressure Test Point
Pilot Burner Gas Outlet
Main Burner Gas Outlet
Gas Inlet
Pilot Solenoid Gas Valve Connection Pins
Main Solenoid Gas Valve Connection Pins
Mounting Holes
PT-V1C Schematic Blocks
Gas Inlet
Inlet
Filter
(EV1)
(EV2)
1st Gas Solenoid
Valve (ON/OFF)
2nd Gas Solenoid
Valve (ON/OFF)
Pilot Adjustment
Screw
Pressure
Regulator
Outlet
Filter
Main Burner
Pilot Burner
1
General Data
Features
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Housing material: Aluminum Alloy die casting
Inlet & Outlet stainless steel mesh filter
NBR & silicon rubber diaphragm
Servo pressure regulator
Compact size: L92mm x H41mm x D123.4mm
Two mounting thru holes on each side
Installation position: Upright, upside down & horizontal
Specifications
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Gas families: Natural gas & LP gas
Main solenoid valve Max. Amp.: 50mA
Pilot solenoid valve Max. Amp.: 75mA
Ambient working temperature: -240C ~ 800C
Max. inlet pressure: 35mbar
Outlet pressure setting range: 3.8mbar~25.4mbar
Mechanical Connections:
a.
b.
c.
d.
e.
Gas inlet connection: 3/8” NPT (various size is available)
Gas outlet connection: 3/8” NPT (various size is available)
Pilot outlet: 7/16”-24
Pressure test points: Dia. 9mm
Mounting holes: 3/16”-24 or M4 *0.7
Gas Flow Capactiy
Gas Outlet Pressure
Gas Flow Range
Gas Flow Range in 1”
Pressure Drop
Natural Gas 3.8mbar~8.9mbar
LP Gas 16.3mbar~25.4mbar
Max. 70,000 BTU/hr
Max. 110,000 BTU/hr
Min. 5,000 BTU/hr
Min. 5,000 BTU/hr
40,000 BTU/hr
65,000 BTU/hr
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VALVE FUNCTION DESCRIPTION
The PT-V1C valve has two automatic shut-off safety valves and a servo gas pressure regulator. When both
shut-off valves are de-energized, the inlet pressure can be measured from the inlet pressure test point.
When the solenoid valve EV1 is energized, the 1st gas valve opens and the pilot outlet is enabled.
While energizing the 2nd solenoid valve EV2, the 2nd gas valve also opens and the gas flow goes through the
main outlet.
The outlet pressure can be measured from the outlet pressure test point.
1
OFF
2
Pilot Outlet Enabled
3
Main Outlet Enabled
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SETTINGS AND ADJUSTMENTS
Measurements of the inlet and outlet pressure
The outlet pressure is automatically modulated by the servo pressure regulator with step motor connected to
PCB controller.
Inlet pressure can be measured by using an approprite screw driver (width 4mm x thickness 0.8mm) to turn the
screw (No.1) in counter-clockwise direction a few turns and then measure by proper instruments. The outlet
pressure can be measured in the same manner above by turning the screw (No.2).
After taking pressure readings, ensure to turn screws in clockwise direction to tighten firmly with proper torque.
Adjustment of the gas flow to the pilot burner outlet
The default setting for each valve is to adjust the pilot to maximum gas flow. The gas flow to the pilot burner can
be adjusted by turning the pilot adjusting screw (No.3) in clockwise direction to reduce.
NO.3
NO.1
NO.2
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Gas Value PT-V1C Dimensional Drawing
Stepping Motor Regulator
Gas Outlet Test Point
Pilot ADJ
58.
4
Gas Inlet Test Point
Pilot Solenoid Gas Valve
Main Solenoid Gas Valve
3/16"-24
Out
←
←
IN
←
3/16"-24
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PT-M80 PCB Control Description
Ignitor Connector
Software Reprogram Connector
PT-W803
INPUT VOLTAGE:6VDC,1.5A
OPERATING CURRENT:250mA
RED LED TROUBLE CODES:
1 FLASH:LP/NAT SELECTOR NOT IN CORRECT POSITION
2 FLASHES:HI VOLTAGE COIL FAILURE NO SPARK.
3 FLASHES:SHORTED SENSOR,NO GAS FLOW,NO IGN OF
PILOT IN 60 SECONDS.
MADE IN TAWAN
NG/LP Gas Swtich
Flame Sensor Connector
Red
Adopter
AC100V~240V to DC6V
Black
LED Indicator
Grey
RF Setting Learning Key
Buzzer
Purple
Valve step motor wire harness
Battery Pack Wire(”-”)
Battery Pack Wire(”+”)
Yellow
Red
Red
}
Switch Wire Harness
(Remote-Off-On)
EV1(Pilot Burner Wire) Orange
Earthing Wire Brown
EV2(Main Burner Wire) Green
1. Dimension:
2. Operating Temperature:
Length:113mm
Max. Temp.: 800C
Width:80mm
Min. Temp.: -240C
Depth:33mm
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