NOTE: DIAGRAMS AND ILLUSTRATIONS ARE REPRESENTATIVE AND ARE NOT DRAWN TO SCALE.
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10
gENERAL gAS INfORMATION
ANd IMPORTANT NOTICES
• It is critical that a licensed instal ler
perform these steps strictly per NFPA.
Installing a gas supply line from the fuel
supply to the appliance involves numerous
considerations, including materials, protec-
tion, sizing, location, controls, pressure,
sediment, and more.
•
Gas lines must be routed, constructed, and
made of materials that are in strict accord-
ance with local codes and regulations.
Check with local building officials for local
code requirements.
•
Never use galvanized or plastic pipe.
•
A sediment trap (not provided) is recom-
mended in the gas piping within the home to
prevent moisture and debris in the line from
damaging the valve.
•
Where required, tightly secure all joints
using appropriate pipe wrenches and seal-
ing compounds.
These appliances must be isolated from
the gas supply piping system (by closing
their individual manual shutoff valve)
during any pressure testing of the gas
supply piping system at test pressures
equal to or less than 1/2 psig (3.5 kPa).
These appliances and their individual
shutoff valves must be disconnected
from the gas supply piping system
during any pressure testing of that
system at pressures greater than 1/2
psig (3.5 kPa).
IMPORTANT NOTICE REgARdINg
PROPANE INSTALLATIONS
Propane tanks are at pressures that will
cause damage to valve components.
Verify that the tanks have step-down regu-
lators to reduce pressures to safe levels.
Using a propane tank smaller than
100 lbs may create pressure loss and
insufficient fuel delivery, which can cause
sooting, severe delayed ignition, or other
malfunctions (ref. NPfA 58).
Any damage as a result of insufficient
tank size or other improper installation is
NOT covered under the limited warranty.
•
On threaded joints, use a pipe joint com-
pound rated for gas. Always use propane-
resistant compounds in propane applica-
tions. Make sure pipe joint compound
does NOT get inside the pipe.
•
It is recommended to seal around the gas
line to prevent cold air leakage.
Orange Wire
(from dfC Wire
Harness)
Pressure Regulator
Tower
Main gas Inlet
3/8" NPT
green Wire
(from dfC Wire Harness)
Line (IN) Test Port
Manifold (OUT) Test Port
Connect GtMS
wire harness.
yellow ground Wire
(from dfC Wire Harness)
Figure 10-3: SIT Proflame Gas Valve
LENNOX HEARTH PRODUCTS • RHAPSODY™ LINEAR DIRECT-VENT GAS FIREPLACES (MODEL RHAP54N) • INSTALLATION INSTRUCTIONS
gAS REqUIREMENTS
ANd CONNECTION
Figure 10-4
External gas Valve
Test Ports (1/8" NPT)
glass door Assembly
(Lower Right Corner)
Line (IN)
Manifold (OUT)
Air Shutter
Adjustment Lever
gAS SUPPLy PRESSURE
REqUIREMENTS
MANIfOLd gAS SUPPLy PRESSURE
fuel Type
Low
High
Natural gas
1.6" WC
(0.4 kPa)
3.5" WC
(0.87 kPa)
Propane
6.3" WC
(1.57 kPa)
10.0" WC
(2.49 kPa)
Figure 10-1
INLET gAS SUPPLy PRESSURE
fuel Type
Minimum
Maximum
Natural gas
5.0" WC
(1.24 kPa)
10.5" WC
(2.61 kPa)
Propane
11.0" WC
(2.74 kPa)
13.0" WC
(3.23 kPa)
INPUT RATES (BTU/hr)
fireplace
Model
Natural gas
Propane
(field-converted)
RHAP54N
37,000 high
26,000 low
34,000 high
27,000 low
Figure 10-2
INPUT RATES
gAS VALVE ANd TEST PORT
INfORMATION
The SIT Proflame gas valve in this fireplace
has a 3/8" NPT thread main gas inlet and outlet
(
Figure 10-3).
Test gauge connections are provided on the
front of the gas control valve (identified IN for
the inlet and OUT for the manifold side).
A set of external 1/8" NPT test ports is also
provided just below the glass door, to the right
of center (Figure 10-4). If installed, remove the
optional Bezel (Page 28) and Surround (Page
33) to access the ports.
Note: Before accessing test ports,
fireplace must be OFF and COLD.
Turn OFF main gas supply before
connecting to pressure taps.
