SERVICEAND TROUBLESHOOTING
A WARNING: THE ABILITY TO
PROPERLY PERFORM SERVICE
ON THIS EQUIPMENT REQUIRES
CERTAIN EXPERTISE, MECHAN-
ICAL SKILLS, TOOLS AND TEST
EQUIPMENT. IF YOU DO NOT
POSSESS THESE, DO NOT
ATTEMPT TO PERFORM ANY
MAINTENANCE ON THIS EQUIP-
MENT OTHER THAN THOSE
PROCEDURES RECOMMENDED IN
THE USER'S MANUAL. A FAILURE
TO FOLLOW THIS WARNING
COULD RESULT IN POSSIBLE
DAMAGE TO THE EQUIPMENT,
SERIOUS PERSONAL INJURY,
OR DEATH.
The
HVAC industry, like the auto
industry, is faced with increasing
goverment imposed efficiency
regulations. New and more
sophisticated mechanical means for
achieving higher efficiencies have
been engineered. Gone are the days
when all a person needed to work on
an auto was just a wrench and
screwdriver. The same is true with
heating and cooling equipment. The
use of test equipment is now more
critical than ever.
FIGURE49
TEST EQUIPMENT
INTRODUCTION
In the servicing and troubleshooting
section is information on com-
ponents, their testing procedures,
and the furnace sequence of
operation. There are descriptions of
the various ignition control boards
and igniters along with their check
procedures. There are trouble-
shooting charts, wiring diagrams and
service analyzer charts. Included is a
list of suggested test equipment.
Use this information to service and
understand the installation, operation
and troubleshooting of the Low
Profile Furnace.
Be aware this is a guide compiled
from numerous sources. It cannot
take into consideration all conditions
found in all installations.
The first procedure upon arrival at the
furnace job site is an inspection of the
furnace installation. Determine if the
installation was done according to the
Installation and Operation Manual
for the furnace. Have a copy of this
manual in case it was not left with the
furnace.
TESTEQUIPMENT
The following test equipment is
recommended to properly service the
Low Profile Gas Furnace:
1. A two-temperature electronic
thermometer
2. A good quality volVohm meter
3. A combustible gas leak detector
or bottle of soap suds.
4. A Magnehelic Gauge (capable of
reading to 3" w.c.)
5. A 10-loop amperage multiplier
for heat anticipators (or an AC
ammeter with 0.1 amp
resolution)
6. A DC microamp meter or
microamp adapter
7. A clamp-on ammeter
8. A U-tube manometer
9. CO/CO
2
meters (not shown)
NOTE: Carry and store any test
equipment in a manner to prevent
damage.
55
To Next Page
Loading...