White Rodgers 36C94-303 Instrucciones De Instalación página 4

INSTALLATION
MAIN PIPING CONNECTIONS
NOTE
Refer to warnings and cautions on page 3 before
attempting installation. All piping must comply
with local codes, ordinances, and/or national fuel
gas codes.
1. Shut off power to the unit and install Lock-
Out tag on all disconnects and breakers.
2. Turn off main gas supply line valve.
3. Mark all wires going to the old valve with the
terminal description that they are attached
to.
4. If replacing an existing valve, disconnect all
plumbing and electrical connections from the
old control.
5. The control may be installed in any orienta-
tion except upside down (see figure 1). The
arrow on the valve indicates the direction of
gas flow through the control.
6. You should use new pipe that is properly
chamfered, reamed, and free of burrs and
chips. If you are using old pipe, be sure it is
clean and free of rust, scale, burrs, chips, and
old pipe joint compound.
NOTE: A MANUAL SHUTOFF VALVE
MUST BE INSTALLED WITHIN
6 FEET OF THE EQUIPMENT
Drop
Horizontal
Gas Valve
3 in.
minimum
Piped Gas
Supply
4
NOTE
All piping must comply with local codes, ordinances,
and/or national fuel gas codes.
Piped Gas
Supply
Figure 3. Typical Gas Valve Piping
7. Apply pipe joint compound (pipe dope) that
is approved for all gases, only to the male
threads of the pipe joints. DO NOT apply
compound to the first two threads (see figure
3 for typical piping connections).
8. Install gas valve by holding inlet boss with ad-
justable wrench. Do not tighten excessively,
as this may damage the valve (Torque: 375
in-lb maximum). Do not cross-thread during
installation as this may damage the valve.
9. If the original gas valve has a barbed hose
fitting, install pressure tube on barbed hose
fitting of the replacement valve. Ensure that
the pressure tube will not kink.
10. Do not remove barbed hose fitting from
replacement valve even if the original valve
does not have it.
11. Some applications will require modification of
the pilot tube.
12. See SYSTEM WIRING when making electrical
connections. Connect wires per Fig. 4 Diagram
and Fig. 5 Chart.
13. After installation is complete, check the
operation of the unit and, with main burners
firing, check all joints for leaks using a leak
detection solution. Retighten all joints where
bubbles appear. DO NOT USE OPEN FLAME
TO CHECK FOR LEAKS
Horizontal
Gas Valve
Riser
Riser
3 in.
minimum
NOTE: ALWAYS INCLUDE A
DRIP LEG IN PIPING
Drop
Gas Valve
3 in.
minimum
Tubing Gas
Supply