Loading ...
Loading ...
Loading ...
Furnace Maintenance (Cont.)
Filter ReplacementlCounterflow
See Figure 5
1. Turn off electric power for furnace at circuit
breaker ordisconnect switch.
2. Remove blower compartment door.
3. Reach up through right side and lift upward and
swing top of filter towards center of furnace then
purl filter down and remove being careful not to
dislodge dirt and debris from filter.
4. Inspect filter and replace or clean washable type.
If filter is aluminum mesh it should be recoated
with filter c0at[ng spray.
FIG. 5 COUNTERFLOW FILTER
REPLACEMENT
CONDENSATE DISPOSAL
MonthlylAnnually
Your furnace has a condensate trap as part of the vent
system: The moisture in the flue gases will condense
and collect in the trap to go to an inside drain or be
pumped to a sewer line using a condensate pump.
]:he Condensate Trap and Condensate Neutralizer Car-
tridge (_{ used) in the drain line leading from the trap
will require some maintenance. Disassemble and clean
trap and cartridge prior to each heating season or if
drain line becomes plugged.
Inspect the drain fine and overflow line at least mon-
thly. If the Condensate Neutralizer Cartridge becomes
plugged the condensate will flow through the
overflow line. If this happens clean both cartridge and
trap.
TO CLEAN: Disconnect the drain line cartridge and
unscrew end cap from cartridge. Pour the neutralizer
out and thoroughly flush neutralizer and inside of car-
tridge with water. Pour neutralizer back into cartridge,
adding neutralizer if cartridge is less than ¾ full.
Unscrew trap from _/ent Connecting Tee and flush
throughly with water, use soap if necessary to clean,
DO NOT USE any kind of solvents. Make sure float
is reinstalled in trap, Ref. Fig. 7.
Reassemble and sea[ threaded connections with
silicone rubber (bathtub caulk)or pipe dope approved
for plastic pipe.
See repair parts section in the Furnace Technical Sup-
port Manual, to order replacement neutralizer.
Do not use Condensate for any reason as it is acidic.
5. Reinstall felt filter first. If filter is marked for air
flow direction make sure it's installed correctlY,
6, Replace blower compartment door making sure
that it's tightly closed.
7. Turn on electric power for the furnace.
FIG. 6 RECOMMENDED REMOTE FILTER SIZES
Nominal Toes
Air Conditioning
Nominal Air Flow
Cubic Feet per Minute
Up Thru 2 Tons
800-900 CFM
2_'%ns
9OO-I 100 CFM
L
3 Tone
1100-1300 CFM
3_'%.s
3300-I_00 CFM
4 Tons
1500-1700 CFM
4_ Tons
1700-1900 CFM
5 Tons
1900-2100 CFM
Recommended Filter Sizes
Sq, |_¢h Surface AtealNominal Size
Disposable Filters
432
20X25
480
20X30
576
14X25(2)
........672
16X25(2)
768
20×25121
864
20X25{2)
96O
20X30 12i
Cleanable Filzers
26O
15X20
288
14X25
346
t6X25
404
20X25
461
20X25
5_9
2_XZ5
576
24X25
Furnace Size
1000 X BTUH
40 50
75 (counter flow)
(onty]
40 5,0
75 1 on
40 50
75 100
100 125
75 Eupflow on_y)
125
100 (upf!ow only)
125
125
10
FURNACE CONDITION AND
FLUE GAS PASSAGES/Monthly
A properly adjusted gas furnace.should not require
cleaning at frequent intervals, but it should be in-
spected regularly to ensure safe and efficient opera-
tion. A brief monthly inspection is recommended that
does not require disassembly, in addition you should
have the furnace inspected, and cleaned if required,
by a qualified service technician annually.
During the monthly inspection check the vent pipe and
fresh air intake (if installed), to be sure they are clear
and free of obstructions. Check vent pipe for evidence
of condensate leakage, tight joints, secure attachment
to furnace and sagging pipe.
Horizontal sections of pipe must slope upward 1/4"
per foot except sections between furnace and drain
trap when trap is not mounted directly on furnace.
Any horizontal section (max. 4" long) must slope down
a minimum of 1/4" per foot to trap. Vertical sections
to trap can be a maximum of 5 feet.
Check return air duct to make sure it is sealed to fur-
nace casing and that it is in good physical condition.
It must terminate outside the space containing the
furnace with no holes or inlets in furnace space.
Loading ...
Loading ...
Loading ...