System Data; High Elevation; Gas Line Installation; Pilot Adjustment - Regency City Series Owners & Installation Manual

CB40E
NG SYSTEM DATA
Min. Supply 5" WC (1.25 kPa)
Pressure
Manifold Pressure 3.8" WC (0.94 kPa)
Orifice Size #42 DMS
Maximum Input 28,500 Btu/h
(8.33 kW)
Minimum Input 15,500 Btu/h
(4.54 KW)
CB40E
LP SYSTEM DATA
Min. Supply Pressure 11" WC (2.73 kPa)
Manifold Pressure 10.5" WC (2.62 kPa)
Orifice Size #53 DMS
Maximum Input 28,500 Btu/h
(8.35 kW)
Minimum Input 15,500 Btu/h
(4.54 KW)

High Elevation

This unit is approved for altitude 0 to 4500 ft.
(CAN1 2.17-M91).

Gas Line Installation

Since some municipalities have additional local
codes it is always best to consult with your local
authorities and the CAN/CGA B149 installation code.
For USA installations follow local codes and/or
the current National Fuel Gas Code, ANSI Z223.1.
When using copper or flex connectors use only
approved fittings. Always provide a union so that
gas lines can be easily disconnected for servicing.
Flare nuts for copper lines and flex connectors are
usually considered to meet this requirement.
NOTE: A shutoff / dante valve should be
supplied in or near the unit (or as per local
codes) for ease of servicing this appliance.
IMPORTANT: Always check for gas leaks with
a soap and water solution or gas leak detec-
tor. Do not use open flame for leak testing.

Pilot Adjustment

Periodically check the pilot flames. Correct
flame pattern has two strong blue flames:
1 flowing around the flame sensor and 1
flowing across the burner (it does not have
to be touching the burner).
Burner
Flame Sensor
Pilot
Note: If you have an incorrect flame
pattern, contact your Regency
dealer for further instructions.
Incorrect flame pattern will have small,
probably yellow flames, not coming into
proper contact with the rear burner or flame
sensor.

Gas Pipe Pressure Testing

The appliance must be isolated from the gas sup-
ply piping system by closing its individual manual
shut-off valve during any pressure testing of the
gas supply piping system at test pressures equal
to or less than 1/2 psig. (3.45 kPa). Disconnect
piping from valve at pressures over 1/2 psig.
The manifold pressure is controlled by a regulator
built into the gas control, and should be checked
at the pressure test point.
Note: To properly check gas pressure,
both inlet and manifold pressures
should be checked using the valve
pressure ports on the valve.
1 Make sure the unit is in the "OFF" position.
2. Loosen the "IN" and/or "OUT" pressure tap(s),
turning counterclockwise with a 1/8" (3 mm)
wide flat screwdriver.
3. Attach manometer to "IN" and/or "OUT" pres-
sure tap(s) using a 5/16" (8 mm) ID hose.
4. Turn the unit on with the remote or wall switch
5. The pressure check should be carried out with
the unit burning and the setting should be within
the limits specified on the safety label.
6. When finished reading manometer, turn off the
unit, disconnect the hose and tighten the screw
(clockwise) with a 1/8" (3 mm) flat screwdriver.
Note: Screw should be snug, but do not
over tighten.

885 S.I.T. Valve Description

1) 6 Stage flame adjustment
2) Pilot adjustment
3) Outlet Pressure Tap
4) Inlet Pressure Tap
5) Pilot Outlet
6) Main Gas Outlet
7) Main Gas Inlet
Ignitor
4 3
®
5
6
installation
2
1
7
City Series CB40E-12 | 71