International comfort products N9MP1 User's Information Manual page 7

User's Information Manual
Typical Gas Valve Honeywell
Figure 4
Gas Furnaces
Single Stage (90+ Furnaces)
OUTLET
Pilot Pressure
Adjustment (Hidden)
On\Off
Switch
Diagnostic Light
Two Stage (90+ Furnaces)
OUTLET
Typical Gas Valve Honeywell 80+ Furnaces
Manifold Adjustment
(Hidden)
On/Off
Switch
INLET
441 02 2001 07
INLET
Manifold Pressure
Adjustment
dwg 25--23--31a
Manifold Pressure
Adjustment
LO
HI
INLET
25--22--49a
Diagnostic
Light
(on some models)
Pilot Adjustment
(Hidden) on some
models
OUTLET
25--22--25a
L P Model Units
If your L.P. (liquefied petroleum) gas unit is installed in an exca-
vated or low lying area, we recommend that you contact your L.P.
supplier about installing a warning device that would alert you of a
gas leak.
!
Fire or explosion hazard.
L.P. gas is heavier than air. Leaking gas can settle in
low areas such as a crawl space. If you suspect the
presence of gas, follow the instructions on the cov-
er of this manual.
Failure to observe could result in death, bodily inju-
ry or property damage.
Freezing Temperatures And Your Structure
!
Freeze warning.
Turn off water system.
If your unit remains shut off during cold weather
the water pipes could freeze and burst, resulting in
serious water damage.
Your unit is equipped with safety devices that may keep it from op-
erating if sensors detect abnormal conditions such as clogged ex-
haust flues.
I
f your unit remains shut off during cold weather the water pipes
could freeze and burst, resulting in serious water damage.
If the structure will be unattended during cold weather you should
take these precautions.
1. Turn off main supply water into the structure and drain the
water lines if possible. Open faucets in appropriate areas.
2. Have someone check the structure frequently during cold
weather to make sure it is warm enough to prevent pipes
from freezing. Suggest they call qualified service agency, if
required.
Winter Shutdown (90+ Furnaces)
5
1. Disconnect the / ² OD rubber hose from the vent drain
8
fitting that is located downstream of the combustion blower.
Insert a funnelintothehose andpourfour(4)ounces ofsani-
tary type (RV) antifreeze into the condensate trap. Re-
5
connect the / ² OD rubber hose to the stub on the vent
8
drain fitting. Secure with the hose clamp.
3
2. Disconnect the / ² OD rubber hose from the condensate
4
trap. Insert a funnel into the hose and and pour four(4)
ounces of sanitary type (RV) antifreeze into the plastic tran-
sition box. Squeeze the hose together near the end and
3
quickly reconnect the
condensate trap. Secure with the hose clamp.
When you return home, your furnace will be ready to start, as it is
not necessary to drain the antifreeze from the furnace.
Unit Maintenance
Have your unit inspected and serviced on an annual basis (before
the heating season) by a qualified service technician.
/ ² OD rubber hose to the stub on the
4
7