Y-IM, BQ240 Sunline 2000 Single Package Heat Pump

TABLE 20: UNIT CONTROL BOARD FLASH CODES
Flash Code
Description
On Steady Control Failure - Replace Control
Heart Beat Normal Operation
1 Flash Not Applicable
2 Flashes Control waiting ASCD 1
3 Flashes HPS1 - Compressor Lock out
4 Flashes HPS2 - Compressor Lock out
5 Flashes LPS1 - Compressor Lock out
6 Flashes LPS2 - Compressor Lock out
7 Flashes FS1 - Compressor Lock out
8 Flashes FS2 - Compressor Lock out
Ignition Control Locked Out/
9 Flashes Ignition Control Failure / Limit Switch Trip / No
Jumper Plug in Heat Section
10 Flashes
Compressors Locked Out On Low
Outdoor Air Temperature 1
11 Flashes
Compressors Locked Out Because The
Economizer Is Using Free Cooling 1
12 Flashes Fan Overload Switch Trip
13 Flashes Compressor Held Off Due To Low Voltage1
14 Flashes EEPROM Storage Failure (Control Failure)
OFF No Power or Control Failure
1. These flash codes do not represent alarms.
MAINTENANCE
NORMAL MAINTENANCE
Prior to any of the following maintenance procedures,
shut off all electric power to the unit to
prevent personal injury.
FILTERS
Inspect once a month. Replace disposable or clean
permanent type as necessary. DO NOT replace permanent
type with disposable. The dimensional size of
the replacement filter must be the same as the
replaced filter.
MOTORS
Outdoor fan motors are permanently lubricated and
require no maintenance.
Indoor Blower Motor and Drive - The indoor blower
motor features ball bearings that do not require
periodic lubrication. Periodic lubrication of the motor
and bearings can extend the life of components but is
optional.
Damage can occur if the bearings are overlubricated.
Use grease sparingly.
Perform all maintenance operations on the
blower motor with electric power disconnected
from the unit. Do not attempt to lubricate bearings
with the unit in operation.
On an annual basis, check the motor for accumulations
of dust, etc. that may block the cooling slots in the
motor shell. Check for loose, damaged or misaligned
drive components. Check that all mounting bolts are
tight. Replace defective parts as required.
If desired, every three years remove both pipe plugs at
each end shell and clean out any hardened grease or
foreign matter. Replace one plug on each end with a
clean grease fitting. Using a low pressure grease gun,
pump grease (Chevron SRI-2 or equivalent) into the
bearing cavity until new grease shows at the open port.
Do not over lubricate. Run the motor for ten minutes
until excess grease is purged from the cavity. Replace
the plugs.
BLOWER SHAFT BEARING
Blower shaft bearings should be inspected on a
monthly basis. At a minimum, the bearings should be
relubricated every 6 months using a lithium-based
grease (NLGI grade 2) recommended for ball bearing
service.
OUTDOOR COIL
Dirt should not be allowed to accumulate on the outdoor
coil surface or other parts in the air circuit. Cleaning
should be as often as necessary to keep coil clean.
Use a brush, vacuum cleaner attachment, or other suitable
means. If water is used to clean coil, be sure electric
power to the unit is shut off prior to cleaning.
NOTE: Exercise care when cleaning the coil so that
the coil fins are not damaged.
Subject to change without notice. Printed in U.S.A.
Copyright © 2004 by Unitary Products Group. All rights reserved.
66394-YIM-D-1004
Supersedes: 66394-YIM-C-0504/035-19289-000-C-0504
Unitary 5005 Norman
Products York OK
Group Drive 73069