Gas Line Installation Requirements - Minimum/Maximum Pressures - kozy heat Chaska CSK-31 Installation And Operating Manual

Figure B-1
2. This fireplace insert is designed to accept either
a 3/8" or 1/2" gas line approved for gas
appliances. Consult local building codes to
properly size the gas supply line leading to a
3/8" reduction.
3. Connect the manual shut off valve to the
previous run gas line.
4. The gas line will be connected to the millivolt
board later in this manual.
IMPORTANT:
ALL CONNECTIONS WHETHER FIELD OR FACTORY MADE
MUST BE CHECKED FOR LEAKS.
Pressure check taps for both the manifold (outgoing) and inlet (incoming) pressures are located in front of the
gas valve. Follow instructions on page #21 for Model #CSK-31 and page #24 for Model CSK-31-RF for checking
these pressures.
GAS SPECIFICATIONS
NATURAL GAS:
The minimum inlet gas supply pressure: 5.0 in. W.C.
Recommended inlet gas supply pressure: 7.0 in. W.C.
The maximum inlet gas supply pressure: 10.5 in. W.C.
Manifold Pressure: 3.5 in. W.C.
Manifold Pressure (lo setting): 1.7 in. W.C.
Orifice size (0-2000 ft): 37
Minimum Input rating: 19,000 BTU/Hr.
Venturi setting: 1/8" open
For high altitude installations, consult the local gas distributor or the authority having jurisdiction for proper rating methods.
Input rating: 27,500 BTU/Hr.
NOTE: This appliance and its individual shut off valve
must be disconnected from the gas supply
piping system during any pressure testing of
that system at test pressures in excess of 1/2
psi.
NOTE: This appliance must be isolated from the gas
supply piping system by closing its individual
manual shut off valve during any pressure
testing of the gas supply piping systems at
test pressures equal to or less than 1/2 psi.
LP GAS:
The minimum inlet gas supply pressure: 11.0 in. W.C.
Recommended inlet gas supply pressure: 11.0 in. W.C.
The maximum inlet gas supply pressure: 13.0 in. W.C.
Manifold Pressure: 10.0 in. W.C.
Manifold Pressure (lo setting): 6.3 in. W.C.
Orifice size (0-2000 ft): 52
Minimum Input rating: 20,400 BTU/Hr.
Venturi setting: 1/2" open
Page 5
Input rating: 28,000 BTU/Hr.