Reznor VR Unit Installation Manual - Manual (Page 35)

Form I-VR, P/N 205202 R13, Page 34
DANGER: The gas burner in a Model VR and Model GVR heater is designed and
equipped to provide safe, complete combustion. However, if the installation
does not permit the burner to receive the proper supply of combustion air,
complete combustion may not occur. The result is incomplete combustion
which produces carbon monoxide, a poisonous gas that can cause death.
These tubular infrared heaters may be safely operated in the vented or unvented
mode. FAILURE TO PROVIDE PROPER VENTING OR TO MEET FRESH AIR
REQUIREMENTS FOR UNVENTED INSTALLATIONS WILL RESULT IN A HEALTH
HAZARD THAT COULD CAUSE SERIOUS PERSONAL INJURY OR DEATH.
Always comply with the combustion air requirements in the installation
codes and instructions. If combustion air is brought from outside, use only
the outside combustion air kit specifically designed for this heater. NEVER
RESTRICT OR OTHERWISE ALTER THE SUPPLY OF COMBUSTION AIR TO
ANY HEATER. Indoor units installed in a confined space must be supplied with
air for combustion as required by Code and in this heater installation manual.
If two heaters use the same vent terminal, a specially designed dual vent kit
must be installed. If the unit is vented, MAINTAIN THE VENT SYSTEM TO BE
STRUCTURALLY SOUND AND IN FREE FLOWING OPERATING CONDITION. If
the unit is unvented, PROVIDE 4 CFM OF FRESH AIR PER 1000 BTUH’S FOR
NATURAL GAS OR 5 CFM OF FRESH AIR PER 1000 BTUH’S FOR PROPANE.
8. Check
Installation
and Start-Up
(cont’d)
 With the unit operating, measure manifold gas pressure. See Paragraph
6.3.
 Turn the unit off and on, pausing two minutes between each cycle.
Observe for smooth ignition.
 Place "Owner's Envelope" containing the Warranty Form and this manual
in a safe, accessible location near the heater. Observe clearances; do not
place envelope in direct line of radiant heat.
 After initial startup, wait until tubes have cooled and check the tightness of
all the tube coupling bolts. Tighten as needed.
Start-Up:
 Bleed all air from the gas supply lines to the heater. Rotate the knob on the
combination valve to the "ON" position.
Set the thermostat to above room temperature. This heater is equipped with
a fully automatic ignition; do not attempt to light by hand. Listen for the quiet
hum of the combustion air motor. With combustion air motor operating, the
spark at the burner will be visible. As the air bleeds from the gas line, the
burner will try to ignite.
Once established, the main burner flame will burn directly off the face of the
burner. Natural gas burners will have a blue flame with very little yellow tip-
ping. Propane fueled burners will also have a blue flame, but the flame will
have some yellow tipping. (NOTE: On initial start-up, there will be some odor
and light smoke released from the tubes and reflectors).
Operate the heater for at least ten minutes to bring it to full temperature to
ensure proper operation.
Check installation
after start-up: