Regency L676-LP1 User Manual

Page of 48
Regency
®
 L676-1 Direct Vent Gas Fireplace
26
INST
ALLA
TION
INSTALLATION
L676-NG1 SYSTEM DATA
Canada
USA
Altitude
0 - 2000 ft 
(0 - 610m)
0 - 2000 ft 
(0 - 610m)
Min. Supply 
Pressure
5" WC (1.25 
kpa)
5" WC 
(1.25 kpa)
Low Setting Man. 
Pressure
1.6" WC 
(0.39 kpa)
1.6" WC 
(0.39 kpa)
Max. Manifold 
Pressure
3.5" WC 
(0.87 kpa)
3.5" WC 
(0.87 kpa)
Orifi ce Size 
#33 DMS
#33 DMS
Minimum Input
22,000 Btu/h 
(6.45 kW)
22,000 
Btu/h 
(6.45 kW)
Maximum Input
33,000 Btu/h
(9.67 kW)
33,000 
Btu/h
(9.67 kW)
Altitude
2000-4500 
ft. 
(610-1371m)
2000-4500 
ft. 
(610-
1371m)
Orifi ce Size
#33 DMS
# 34 DMS
Minimum Input 
22,000 Btu/h 
(6.45 kW)
21,500 
Btu/h  
(6.30 kW)
Maximum Input
33,000 Btu/h
(9.67 kW)
32,000 
Btu/h  
(9.37kW)
L676-LP1 SYSTEM DATA
Altitude
0-4500 ft.
(0 - 1371m)
0-4500 ft.
(0 - 1371m)
Min. Supply 
Pressure
12" WC 
(2.98 kpa)
12" WC 
(2.98 kpa)
Low Setting Man. 
Pressure
6.4" WC 
(1.59 kpa)
6.4" WC 
(1.59 kpa)
Max. Manifold 
Pressure
10" WC 
(2.49 kpa)
10" WC 
(2.49 kpa)
Orifi ce Size
#51 DMS
#51 DMS
Minimum Input
25,000 Btu/h 
(7.33 kW)
25,000 
Btu/h 
(7.33 kW)
Maxiumm Input
31,500 Btu/h
(9.23 kW)
31,500 
Btu/h
(9.23 kW)
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.
SIT 829 VALVE DESCRIPTION
1)  Gas on/off knob
2)  Electronically Operated Hi/Lo
3) Pilot 
Adjustment
4)  Thermocouple Connection - option
5)  Outlet Pressure Tap
6) Inlet Pressure Tap
7) Pilot Outlet
8)  Main Gas Outlet
9)  Alternative TC Connection Point
HIGH ELEVATION
This unit is approved in Canada 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.
PILOT ADJUSTMENT
Periodically check the pilot fl ames. Correct 
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 (it does not have to be touching the 
burner).
Note: If 
you have an incorrect fl ame pattern, 
contact your Regency
®
 dealer for 
further instructions.
Incorrect  fl ame pattern will have small, 
probably yellow fl ames, not coming into 
proper contact with the rear burner or 
thermopile or thermocouple. 
 
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.
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.