DT Series - Installation manual (V4_2022)
21
8.
INLET GAS PRESSURE
Model
Natural Gas
Dynamic supply
pressure
Nominal Manifold
pressure
Pilot
pressure
Minimum
In.w.c [kPa]
Maximum
In.w.c [kPa]
At maximum capacity
In.w.c [kPa]
In.w.c [kPa]
55
10
”
[2.5]
14
”
[3.5]
(Consult rating plate or
factory)
3.5
”
[0.87]
65
75
85
100
125
150
175
200
250
12
”
[3.0]
300
350
400
500
500
Table 6: Inlet gas pressure
Note:
Consult factory or rating plate for propane gas inlet and manifold pressures
9.
HEATER SHUTDOWN
9.1.
EXTENDED SHUTDOWN
When the heater is shut down for a long period of time, it is recommended to shut off gas and
electric power. Before turning ON the heater after an extended shutdown, make sure all the
air is purged from the gas piping, and that gas pressure is adequate. A complete installation
and unit inspection is recommended to make sure that everything is in order.