Empire Comfort Systems DVCP36BP0N-2 Installation Instructions And Owner's Manual page 16

Checking Manifold Pressures
Both Propane and Natural gas valves have a built-in pressure
regulator in the gas valve. Natural gas models will have a manifold
pressure of approximately 3.5-in w.c. (.871 kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 4.5-in w.c.
(1.120 kPa) for the purpose of input adjustment to a maximum of
14.0-in w.c. (3.484 kPa). Propane gas models will have a manifold
pressure approximately 10.0-in w.c. (2.49 kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 10.8-in w.c.
(2.68 kPa) for the purpose of input adjustment to a maximum of
14.0-in w.c. (3.484 kPa).
Gas Supply Pressure (inches w.c.)
Minimum
Natural Gas
LP (Propane)
Natural Gas
LP (Propane)
Page 16
GAS SUPPLY
Normal Maximum
4.5 7.0 14.0
10.8 11.0 14.0
Manifold Pressure (inches w.c.)
Normal (HI)
3.5
10.0
35919-4-1015