Reznor LDAP Unit Installation Manual - Manual (Page 33)

Form I-LDAP, P/N 207733R6, Page 33
Gas Control
Knob
(shown in the
ON position)
Gas
Flow
Gas
Flow
Top View
Side View
FIGURE 21 - Gas
Valve ON/OFF
Control Knob
9.3 Check
installation after
Startup
 Vent System Testing Procedure
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and horizontal pitch, as
required in the National Fuel Gas Code, ANSI Z223.1 or CSA B149.1
and B149.2, Installation Code for Gas Burning Appliances and
Equipment, and this manual. Determine that there is no blockage or
restriction, leakage, corrosion or other deficiencies that could cause an
unsafe condition.
3. In so far as practical, close all building doors and windows and all doors
between the space where the heater is and other spaces of the building.
Turn on exhaust fans so they shall operate at maximum speed. Do not
operate a summer exhaust fan.
4. Light the heater following the lighting instructions. Adjust the thermostat
for continued operation. Verify that combustion products are venting
properly. After determining that the heater vents properly, return doors,
windows, and exhaust fans to their previous conditions. If improper
venting is observed, the venting system must be corrected.
 With the heater in operation, measure valve outlet gas pressure. If
operated at high altitude, adjust outlet gas pressure for altitude. See
information and instructions in Paragraph 6.1
 Using the thermostat, turn the heater off and on, pausing two minutes
between each cycle. Observe for smooth ignition.
 Place the "Owner's Envelope" containing the Limited Warranty, this
booklet, and any control or optional information in an accessible location
near the heater. Follow the instructions on the envelope.
WARNINGS printed above or on the Operating Label on the heater. If you
do not smell gas, proceed to the next step.
6. Turn the gas control knob(s) counterclockwise to “ON”.
7. Close the access door(s).
8. Turn on the electric power to the heater.
9. Set the thermostat to the desired setting.
NOTE: If the appliance does not operate, follow the instructions “To Turn Off
Gas to Appliance” printed below (and on the Operating Label on the heater)
and call your service technician.
10. Thermostat calls for heat, energizing the venter motor(s).
11. The main combustion air pressure switch (Sizes 800 and 1200) and each
heat section pressure switch close, firing the heater.
12. Burner flame is sensed and in 30 seconds after the gas valve is
energized, the fan motor(s) is energized.
13. If the flame is extinguished during the main burner operation, the
integrated control system closes the main valve and must be reset by
interrupting power to the control circuit. (See lighting instructions on the
heater.).
TO TURN OFF GAS TO THE APPLIANCE
1) Set thermostat to lowest setting
2) If service is to be performed, turn off all electric power to the
appliance.
3) Open the access door(s).
4) Turn the gas control knob(s) clockwise to “OFF”. Do not force.
5) Close the access door(s).