Maytag Amana SXV9 Series Service And Troubleshooting page 37

SERVICING
TROUBLESHOOTING-INDOOR UNIT FOR EEV APPLICABLE UNIT
AUXILIARY ALARM SWITCH
The control is equipped with two Auxiliary Alarm terminals,
labeled TB4 and TB5, which are typically utilized in series
with a condensate switch but could also be used with com-
patible CO2 sensors or fire alarms.
The auxiliary alarm switch must be normally closed and
open when the alarm occurs. For example, a normally
closed condensate switch will open when the base pan's
water level reaches a particular level. The control will
respond by turning off the blower motor and displaying the
HIGH VOLTAGE
Disconnect all power before servicing or
installing this unit. Multiple power sources
may be present. Failure to do so may cause
property damage, personal injury or death.
INDOOR UNIT CONTROL BOARD
WARNING
proper fault codes. If the switch is later detected closed
for 30 seconds, normal operation resumes and the error
message is removed. The switch is closed as part of the
default factory setting. The error will be maintained in the
equipment's fault history.
CIRCULATOR BLOWER
This air handler is equipped with a variable speed circulator
blower. This blower provides several automatically-adjusted
blower speeds. The Specification Sheet applicable to your
model provides an airflow table, showing the relationship
between airflow (CFM) and external static pressure (E.S.P.).
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