Resetting Fault Conditions; Indications Of Proper Operation; Notice To Owner; Maintenance - York STEALTH H4TS024 Installation Instruction

RESETTING FAULT CONDITIONS

The control locks out the unit and does not permit it to run
when it detects certain fault conditions. Table 2 lists all the
modes indicated by the control. Control code "1" is a tempo-
rary five-minute lock-out (see Anti-short cycle above). Control
code "2" (pressure switch open) locks out the control and
does not permit the unit to start until the fault condition is cor-
rected. The fault code "2" can be reset by one of the following
three methods.
1. Reset the 24v to the control (remove 24v and then reap-
ply).
2. Jumper the test pins at the control board.
3. If there is a call for Y1 or Y2 cooling, turn the thermostat
to the off position then turn it to cool.
If methods 1 or 3 above are used, then the next call for cool-
ing will allow the unit to start following a five-minute anti-short
cycle period. If method 2 is used, then the unit will start imme-
diately with the next call for cooling.
If the fault condition continues to exist prior to re-starting the
unit, the control will lock out the unit again.

INDICATIONS OF PROPER OPERATION

Cooling operation is the same as any conventional air condi-
tioning unit.
1. The outdoor fan should be running, with warm air being
discharged from the top of the unit.
2. The indoor blower (furnace or air handler) will be operat-
ing, discharging cool air from the ducts, coils or other
parts in the air circuit. Clean as often as necessary to
keep the unit clean. Use a brush, vacuum cleaner attach-
ment, or other suitable means.
3. The vapor line at the outdoor unit will feel cool to the
touch.
4. The liquid line at the outdoor unit will feel warm to the
touch.
Unitary Products Group

NOTICE TO OWNER

If unit is not operating properly, check the following before
calling a service man:
1. Indoor section for dirty filter.
2. Outdoor section for leaf or debris blockage.
Eliminate problem, turn off the thermostat for 10 seconds and
attempt start. Wait 5 minutes. If system does not start, call
serviceman.

MAINTENANCE

1. Dirt should not be allowed to accumulate on the outdoor
coils or other parts in the air circuit. Clean as often as
necessary to keep the unit clean. Use a brush, vacuum
cleaner attachment, or other suitable means.
2. The outdoor fan motor is permanently lubricated and
does not require periodic oiling.
3. If the coil needs to be cleaned, it should be washed with
Calgon CalClean (mix one part CalClean to seven parts
water). Allow solution to remain on coil for 30 minutes
before rinsing with clean water. Solution should not be
permitted to come in contact with painted surfaces.
4. Refer to the furnace or air handler instructions for filter
and blower motor maintenance.
5. The evaporator coil drain pan should be inspected and
cleaned regularly to prevent odors and assure proper
drainage.
It is unlawful to knowingly vent, release or discharge
refrigerant into open air. It is necessary to recover
the refrigerant during any repair or installation of the
system.
WHEN THE SYSTEM IS FUNCTIONING PROPERLY AND
THE OWNER HAS BEEN FULLY INSTRUCTED, SECURE
THE OWNER'S APPROVAL.
035-14511-001 Rev. A (0602)
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