31
TDVN Series Direct Vent Gas Fireplace
20007636
Manifold pressure can be measured by using a 5/16”
I.D. hose in the right hand side of the valve and con-
necting a manometer. Two test gauge ports are acces-
sible for test gauge connection:
1. Tap on left side of the valve will give inlet supply
pressure.
2. Tap on the right side of the valve will give manifold
pressure.
Min. Input
Max. Input
33TDVP
13,000
18,000
36TDVP
14,500
20,000
39TDVP
16,500
22,000
FC107
SIT820
valve conversion
10/03
A
B
C
OFF
PILO
T
ON
FC107
Fig. 49
Remove mounting screws, pressure regulator tower
and diaphragm assembly, and discard.
D
E
F
FC108
SIT
regulator
conversion
10/03
OFF
PILOT
ON
FC108
Fig. 50
Replace regulator.
Gas Supply Pressure (inches w.c.)
Minimum
Normal Maximum
LP (Propane)
10.8
11.0
14.0
Manifold Pressure (inches w.c.)
Nornal (HI)
Normal (Low)
LP (Propane)
10.0”
6.3”
Pressure ranges are: