30
Temco DV1000/1200/1400MBN Series
76658
Maintenance
Once installed, the unit should be operated at least
three (3) times to ensure that all is in working order.
NOTE: Manufacturing oils will smoke during initial
firing of appliance. Open windows for ventilation.
Unit Adjustment
Before leaving, the installer should make the following
checks:
BTU Input/Gas Pressure
The fireplace input is marked on the Rating Plate. The
gas inlet pressure specified in Table 1 is the pressure
where the field-installed gas line connects to the gas
control. This is measured at the inlet test port on the
gas valve in the appliance. Ensure that pressure is as
shown in Table 1.
The manifold pressure is controlled by a regulator built
into the gas control and should be checked at the
pressure outlet test port located on the body of the gas
valve.
The pressure should be checked with the appliance
burning on high (highest setting)
and all other gas
appliances turned on. One must then read the manom-
eter and if pressures are not as specified in Table 1,
then the inlet pressure must be adjusted.
The appliance and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of the system at test pressures in
excess of 1/2 psig (3.5 KPa).
Manifold pressure can be measured by using a 5/16”
I.D. hose or tubing. Using a small blade screwdriver,
back out the pressure screw for one full turn. Next, slip
the tubing over the pressure tap extension to check the
pressure with a manometer. Inlet and outlet pressure
taps are located on the front (lower left side) of the
valve body.
1. Tap on the left side of the valve will give inlet supply
pressure.
2. Tap on the right side of the valve will give manifold
pressure.
Pressure ranges are as listed below:
High Altitude
When installing this fireplace at an elevation between 0
and 2000 feet (0 - 610m) in the USA and 0 and 4500
feet (0 - 1370m) in Canada the input rating does not
need to be reduced.
When installing this fireplace at an elevation above
2,000 feet (in the United States), it may be necessary
to decrease the input rating by changing the existing
burner orifice to a smaller size. Input should be re-
duced four percent (4%) for each 1,000 feet above sea
level, unless the heating value of the gas has been
reduced, in which case this general rule will not apply.
To identify the proper orifice size, check with the local
gas utility.
When installing this fireplace at an elevation above
4,500 feet (in Canada), check with local authorities.
Consult your local gas utility for assistance in determin-
ing the proper orifice for your location.
Main Burner/Pilot
The pilot flame size is factory set. The pilot flame
should be at least 1
¹⁄²
” (38mm) long. The flame should
be impinging on the pilot generator. Pilot size can be
adjusted through the pilot adjust screw. If the pilot
flame is too small and can not be adjusted through the
pilot adjust screw then there is the possibility of dirt in
the pilot orifice in which case the pilot orifice should be
cleaned or replaced.
The main burner should be allowed to operate for 15 to
20 minutes before making any adjustment to the
burner. The air shutter on the right front of the main
burner should be adjusted so that there are no orange/
red flames with dark sooty looking tips. A luminous
yellow flame with blue base is what is acceptable.
For burner air shutter settings see Air Shutter Settings
chart. (Page 32)
If there is too much primary air then the flame will be
very blue with yellow tips and smaller flame height.
If there is too little primary air then the flame will be
yellow with orange/red tips on the back flames with
dark sooty elongated tips. In this condition the glass
and logs could show signs of soot accumulation within
10 to 20 minutes.
Maintenance
Motor and Blower for Fan Kit (optional)
This motor has been factory oiled and under normal
operating conditions should not require oiling.
WARNING: Ensure the power is turned off
to the fireplace before servicing.
Table 1
Gas Supply Pressure (inches w.c.)
Minimum
Normal
Maximum
Natural Gas
4.5”
7.0”
14.0”
LP (Propane)
10.8”
11.0”
14.0”
Manifold Pressure (inches w.c.)
Normal (HI)
Normal (Low)
Natural Gas
3.5”
1.6”
LP (Propane)
10.0”
6.3”
