Start-Up, Adjustment; And Safety Check - Carrier 070-08/024070 Installation, Start-Up, Operating And Service And Maintenance Instructions

A04131
Fig. 51--Remove Knockout with Hammer
A04128
Fig. 48--Rounded End of Knockout
A04129
Fig. 49--Knockout Pulled Loose
A04130
Fig. 50--Hammer and Screwdriver Used for Knock-
out
33
START-UP, ADJUSTMENT, AND SAFETY CHECK
Step 1--General
FIRE HAZARD
Failure to l_fllow this warning could result in personal injury,
death and/or property damage.
This lklrnace is equipped with manual reset limit switches in
the gas control area. The switches open and shut off power to
the gas valve if a flame rollout or overheating condition
occurs in the gas control area. DO NOT bypass the switches.
Correct inadequate combustion air supply pl'oNem belbrc
resetting the switches.
CUT HAZARD
Faihn'e to lollow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing, sali:ty glasses and
gloves when handling parts and servicing furnaces.
1. Maintain l lS-v wiring and ground, hnproper polarity will
result in rapid flashing LED and no furnace operation.
2. Make thermostat wire connections at the 24-v terminal block
on the furnace control. Faihn'e to make proper connections
will result in improper operation. (See Fig. 25.)
3. Gas supply pressure to the lilrnace must be greater than 4.5-in.
wc (0.16 psig ) but not exceed 14-in. wc (0.5 psig ).
4. Check all manual-reset switches lor continuity.
5. Install blower compartment door. Door must be in place to
operate furnace.
6. Replace outer door.
Step 2iStart-Up Procedures
FIRE AND EXPLOSION HAZARD
Failure to lollow this warning could cause personal injury,
death and/or property damage.
Never purge a gas line into a combustion chamber. Never use
matches, candles, flame, or other sources of ignition %r the
purpose of checking leakage. Use a soap-and-waer solution
to check %r leakage.
1. Purge gas lines after all connections have been made.
2. Check gas lines liar leaks.