Startup Procedure & Adjustment; Upright Installations; Horizontal Installations; Drain Trap Priming - Amana CEC96 Series Manual

Two-stage gas furnaces
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U
I
PRIGHT
NSTALLATIONS
Depending on the installation and/or customer preference, dif-
fering filter arrangements can be applied. Filters can be in-
stalled in the central return register or a side panel external filter
rack kit (upflows). As an alternative a media air filter or elec-
tronic air cleaner can be used as the requested filter. Consider
installing an air cleaner with deep-pleated media filter at
the time of furnace installation. A deep-pleated filter with a
MERV rating of 8 (minimum) will often provide better filtra-
tion to protect equipment and the air distribution system
than a standard 1" filter and often has lower static pressure
loss than a 1" filter. Also a deep-pleated filter will typically
require less frequent replacement intervals. Avoid using
highly restrictive 1" filters which produce static pressure
loss greater than .25" W.C. In some installations the mini-
mum filter size required will not lend itself to a filter instal-
lation on the side of the furnace. The installation of a cen-
trally installed air cleaner cabinet or a return duct filter in-
stallation may offer more practicality.
Clean Comfort™ brand MERV 11 air cleaners have 5¼"
media filters and are available in the following configura-
tions. Consult your distributor for information on our
complete line of IAQ Clean Comfort™ products.
The figure below shows possible filter locations.
H
I
ORIZONTAL
NSTALLATIONS
Filters must be installed in either the central return register or in
the return air duct work.
CENTRAL
RETURN
GRILLE
SIDE RETURN
EXTERNAL FILTER
RACK KIT
(EITHER SIDE)
S
P
& A
TARTUP
ROCEDURE
Furnace must have a 115 VAC power supply properly connected
and grounded. Proper polarity must be maintained for correct
operation. In addition to the following start-up and adjustment
items, refer to further information in Operational Checks sec-
tion.
D
T
P
RAIN
RAP
RIMING
The drain trap MUST be primed prior to furnace startup. To
prime, fill both sides of the drain trap with water. This ensures
AIR FLOW
Figure 38
DJUSTMENT
proper furnace drainage upon startup and prohibits the possibil-
ity of flue gases escaping through the drain system.
F
O
URNACE
PERATION
Purge gas lines of air prior to startup. Be sure not purge lines
into an enclosed burner compartment.
Check for leaks using an approved chloride-free soap and water
solution, an electronic combustible gas detector, or other ap-
proved method. Verify that all required kits (propane gas, high
altitude, etc.) have been appropriately installed.
F
S
URNACE
TARTUP
1. Close the manual gas shutoff valve external to the furnace.
2. Turn off the electrical power to the furnace.
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.
NOTE: This furnace is equipped with an ignition device which
automatically lights the burner. Do not try to light the burner by
hand.
5. Move the furnace gas valve manual control to the OFF
position.
6. Wait five minutes then smell for gas. Be sure check near
the floor as some types of gas are heavier than air.
7. If you smell gas after five minutes, immediately follow
the Safety Considerations on page 2 of this manual. If
you do not smell gas after five minutes, move the furnace
gas valve manual control to the ON position.
8. Replace the burner compartment door.
9. Open the manual gas shutoff valve external to the furnace.
10. Turn on the electrical power to the furnace.
11. Adjust the thermostat to a setting above room
temperature.
12. After the burners are lit, set the thermostat to desired
temperature.
F
S
URNACE
HUTDOWN
1. Set the thermostat to the lowest setting.
The integrated control will close the gas valve and
extinguish flame. Following a 15 second delay, the induced
draft blower will be de-energized. The circulator blower
will shut off after the time delay expires (selectable
90, 120, 150, 180 seconds).
2. Remove the burner compartment door and move the
furnace gas valve manual control to the OFF position.
3. Close the manual gas shutoff valve external to the furnace.
4. Replace the burner compartment door.
G
S
P
M
AS
UPPLY
RESSURE
G
P
T
AS
RESSURE
EST
The line pressure supplied to the gas valve must be within the
range specified below. The supply pressure can be measured at
the gas valve inlet pressure tap or at a hose fitting installed in
the gas piping drip leg. The supply pressure must be measured
with the burners operating. To measure the gas supply pressure,
use the following procedure.
1. Turn OFF gas to furnace at the manual gas shutoff valve
external to the furnace.
32
EASUREMENT

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