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INITIAL
START-UP
UNIT
DAMAGE
AND/OR
OPERATION
HAZARD
Failure
to follow
this caution
may
result
in unit damage
and/or improper
equipment
operation.
Make sure all valves in heat recovery
water piping
system
are open. NEVER
OPERATE
HR PUMP DRY.
1. Turn on the heat pump.
The HR pump should not run if the
compressor
is not running.
2. Turn
HR switch
to the
"ON"
position.
The
pump
will
operate
if entering
water temperature
to HR is below
120 ° F.
3. The temperature
difference
between
the water entering
and
leaving
the heat recovery
should be 5°F to 15°F.
4. Allow
the unit to operate
for 20 to 30 minutes
to ensure
it is
functioning
properly.
The pump
should
shut off when
the
water temperature
entering
the heat recovery
reaches
120°F.
SYSTEM
CHECKOUT
After completing
the installation,
and before
energizing
the unit,
the following
system
checks should
be made:
1. Verify that the supply
voltage
to the heat pump is in accor-
dance with the nameplate
ratings.
2. Make
sure that all electrical
connections
are tight
and se-
cure.
3. Check the electrical
fusing
and wiring
for the correct
size.
ELECTRICAL
SHOCK
HAZARD
Failure
to follow
this warning
could
result
in personal
injury or death.
Ensure
cabinet
and electrical box are properly
grounded
4. Verify
that the low voltage
wiring
between
the thermostat
and the unit is correct.
5. Verify that the water piping
is complete
and correct.
6. Check that the water flow is correct,
and adjust if necessary.
7. Check
the blower
for free rotation,
and that it is secured
to
the shaft.
8. Verify that vibration
isolation
has been provided.
9. Unit
is serviceable.
Be certain
that
all access
panels
are
secured
in place.
10. Verify that blower
support
has been removed.
11. Verify that ductwork
has been properly
fastened
to supply
and return duct collars.
12. Make
sure return
air filters
are positioned
correctly
in the
filter rack.
UNIT
START-UP
NOTE:
A unit Start-Up
checklist
is included
in the unit packet.
Complete
the Checklist
and place it in the customer
file at your
dealership.
1. Set the thermostat
to the highest
setting.
2. Set the thermostat
system
switch
to "COOL",
and the fan
switch
to
the
"AUTO"
position.
The
reversing
valve
solenoid
should
energize.
The compressor
and fan should
not run.
3. Reduce
the
thermostat
setting
approximately
5 degrees
below
room temperature.
4. Verify the heat pump is operating
in the cooling
mode.
5. Turn
the thermostat
system
switch
to the "OFF"
position.
The unit should stop running
and the reversing
valve should
de-energize.
6. Leave
the unit off for approximately
five (5) minutes
to
allow for system
equalization.
7. Turn the thermostat
to the lowest setting.
8. Set the thermostat
switch
to "HEAT".
9. Increase
the
thermostat
setting
approximately
five
(5)
degrees
above room temperature.
10. Verify the heat pump is operating
in the heating
mode.
11. Set the thermostat
to maintain
desired
space temperature.
12. Check for vibrations,
leaks, etc.
MAINTENANCE
1. Filter changes
or cleanings
are required
at regular
intervals.
The time period
between
filter
changes
will depend
upon
type of environment
the equipment
is used in.
In a single
family
home,
that
is not under
construction,
changing
or cleaning
the filter every 60 days is sufficient.
In
other
applications
such as motels,
where
daily vacuuming
produces
a large amount
of lint, filter changes
may need to
be as frequent
as biweekly.
NOTE:
Horizontal
units containing
two filters are taped together
at the factory to facilitate
removal.
This should be done by end user
as new filters are installed.
UNIT DAMAGE AND/OR OPERATION
HAZARD
Failure to follow this caution may result in unit damage
and/or improper equipment operation.
Equipment should never be used during construction due
to likelihood of wall board dust accumulation
in the air
coil of the equipment
which permanently
affects the
performance and may shorten the life of the equipment.
2. An annual
"checkup"
is recommended
by a licensed
refrigeration
mechanic.
Recording
the
performance
measurements
of volts,
amps,
and water
temperature
differences (both heating
and cooling) is recommended.
This data should be compared to the information on the
unit's data plate and the data taken at the original startup of
the equipment.
3. Lubrication of the blower motor is not required, however
may be performed on some motors to extend motor life.
Use SAE-20 non-detergent
electric motor oil.
4. The condensate
drain should
be checked
annually
by
cleaning and flushing to insure proper drainage.
5. Periodic lockouts are commonly caused by air or water flow
problems. The lockout (shutdown) of the unit is a normal
protective measure in the design of the equipment. If contin-
ual lockouts occur, call a mechanic immediately and have
them check for the following:
- Water flow problems
- Water temperature problems
- Air flow problems
- Air temperature problems.
Use of the pressure and temperature charts for the unit may
be required to properly determine the cause.
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