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INSTALLATION
HZ42STEPV-NG SYSTEM DATA
Min. Supply Pressure
5" WC (1.25 kpa)
Low Setting Man.
1.6" WC (0.40kpa)
Pressure
Max. Manifold
3.5" WC (0.87 kpa)
Pressure
Orifi ce Size
#40 DMS
Minimum Input
17,500 Btu/h
(5.13 kW)
Maximum Input
26,000 Btu/h
(7.62 kW)
HZ42STEPV-LP SYSTEM DATA
Min. Supply Pressure
12" WC (2.98 kpa)
Low Setting Man.
6.4" WC (1.59kpa)
Pressure
Max. Manifold
10" WC (2.49 kpa)
Pressure
Orifi ce Size
#53 DMS
Minimum Input
19,500 Btu/h
(5.71 kW)
Maximum Input
24,500 Btu/h
(7.18 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 fl ex connectors use only
approved fi ttings. Always provide a union so that
gas lines can be easily disconnected for servicing.
Flare nuts for copper lines and fl ex connectors
are usually considered to meet this requirement.
NOTE: A shutoff / dante valve should be sup-
plied 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 detector.
Do not use open fl ame for leak testing.
28
PILOT ADJUSTMENT
Periodically check the pilot fl ames. Correct
Burner
Flame Sensor
Pilot
fl ame pattern has three strong blue fl ames: 1
fl owing around the thermopile, 1 around the
thermocouple and 1 fl owing across the burner.
Note: If you have an incorrect fl ame pattern,
contact your Regency
instructions.
Incorrect fl ame pattern will have small, probably
yellow fl ames, not coming into proper contact with
the burner or thermopile or thermocouple.
GAS PIPE PRESSURE
TESTING
The 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 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 valve is in the "OFF" position.
2) Loosen the "IN" and/or "OUT" pressure tap(s),
turning counterclockwise with a
1/8" wide fl at screwdriver.
3) Attach manometer to "IN" and/or "OUT" pressure
tap(s) using a 5/16" ID hose.
4) Light the pilot and turn the valve to "ON" position.
5) The pressure check should be carried out with
the unit burning and the setting should be within
the limits specifi ed on the safety label.
6) When fi nished reading manometer, turn off the
gas valve, disconnect the hose and tighten the
screw (clockwise) with a 1/8" fl at screwdriver.
Note: Screw should be snug, but do not over
tighten.
1) Manual high/low 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
®
dealer for further
AERATION ADJUSTMENT
The burner aeration is factory set but may need
adjusting due to either the local gas supply or
altitude. Open the air shutter for a blue fl ame or
close for a more yellow fl ame.
Minimum Air Shutter Opening:
NG
LP
Note: Any damage due to carboning resulting
from improperly setting the aeration
controls is NOT covered under warranty.
Regency Horizon™ HZ42STEPV Gas Fireplace
886 S.I.T. VALVE
DESCRIPTION
3
1
2
7
5
6
Fully Closed
3/16"
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