Circulator Blower Speeds; Blower Heat Off Delay Timings; Temperature Rise Measurement - Amana GUCA Installation Instructions Manual

HEAT EXCHANGER
RADIATION "LINE OF SIGHT"

Temperature Rise Measurement

3. Subtract the return air temperature from the supply air
temperature to determine the air temperature rise.
Allow adequate time for thermometer readings to sta-
bilize.
4. Adjust temperature rise by adjusting the circulator
blower speed. Increase blower speed to reduce tem-
perature rise. Decrease blower speed to increase tem-
perature rise. Refer to Section XIV, Startup Procedure
and Adjustment -Circulator Blower Speeds for speed
changing details.

CIRCULATOR BLOWER SPEEDS

WARNING
To prevent death, personal injury, property
damage, or premature failure of heat
exchanger, do not adjust the limit control
(factory set).
This furnace is equipped with a multi-speed circulator
blower. This blower provides ease in adjusting blower
speeds. The Specification Sheet provides an airflow table,
showing the relationship between airflow (CFM) and exter-
nal static pressure (E.S.P.), for the proper selection of
heating and cooling speeds. The cooling blower speed is
shipped set on HIGH, and the heating blower speed is set
as indicated in the Specifications Sheet. These blower
speeds should be adjusted by the installer to match the
installation requirements so as to provide the correct heat-
ing temperature rise and the correct cooling CFM.
SUPPLY
AIR
T
SUPPLY
T T
RISE =
-
SUPPLY RETURN
T
RETURN
RETURN
AIR
To adjust the circulator blower speed, proceed as follows:
1. Turn OFF power to the furnace.
2. Select the heating and cooling blower speeds that
match the installation requirements from the airflow
table in the Specification Sheet.
3. Relocate desired motor leads to the circulator blower
heat and cool speed terminals on the integrated control
module. (Terminals are identified as HEAT and COOL
(hot)). If heating and cooling blower speeds are the
same, a jumper wire must be used between the heat
and cool terminals.
4. Connect all unused blower motor leads to the "PARK"
terminals on the integrated control module. Any leads
not connected to the "PARK" terminals must be taped.
5. Turn ON power to furnace.
6. Verify proper temperature rise as outlined in Section
XIV, Startup Procedure and Adjustment - Temperature
Rise.
Circulator Blower Speeds
Low
Medium Low
Medium
High
Common/Neutral

BLOWER HEAT OFF DELAY TIMINGS

The integrated control module provides a selectable heat
off delay function. The heat off delay period may be set to
60, 90, 120, 180 seconds using the DIP switches or jumper
provided on the control module. The delay is factory shipped
at 90 seconds but may be changed to suit the installation
requirements and/or homeowner preference. Refer to the
following figures for switch positions and corresponding
delay times.
60
Second
Delay
90
Second
Delay
120
Second
Delay
180
Second
Delay
Heat Off Delay Switches
36
Red
Orange
Blue
Black
White
DIP Switches Jumper
180
ON
ON
90
180
OFF
90
ON
180
ON
OFF
90
180
OFF
OFF
90