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Document: GFH-NT 1500-4000 IM 14 DEC 2016
Gas Fired Heater Instructions
©2016 NOVATEC, Inc. All Rights Reserved
Photograph, Typical Gas Valve Actuator
13.3 REGULATOR SPRING RANGE
MAIN GAS REGULATOR (DUNGS FRI MODULAR STYLE)
SPRING COLOR
RANGE (IN. OF WATER)
RANGE (mbar)
Brown
1 - 3.6
2.5 - 9
White
2 - 5
5
– 13
Orange
2.8 - 8
7
– 20
Blue
4 - 12
10
– 30
Red
10
– 22
25
– 55
Yellow
12
– 28
30
– 70
Black
24
– 40
60
– 110
Pink
40
– 60
100 - 150
PILOT GAS REGULATOR (R400S)
SPRING COLOR
RANGE (IN. OF WATER)
RANGE (mbar)
Brown
1
– 3.5
2
– 9
Plated
3
– 6
7
– 15
Pink
3
– 8
7
– 20
Violet
4
– 12
10
– 30
Blue
5
–12
12
– 30
Red
10 - 22
25
– 55
Gas Valve
Actuator-
Microprocessor
Based
