Dimensions (mm)
OPA 201RKTYG
PROJECTION
Not to Scale
POINT LOADS (kg) WEIGHT
W X Y Z (kg)
50 60 88 72 270
2. Check for correct rotation of the
compressor. If rotation is incorrect the
compressor will not pump, be noisy, and
will draw minimal current. To correct
motor rotation, change the phasing at
the main power terminal.
3. Check the supply voltage.
4. Measure the current draw on the
compressor motor and on each fan
motor. Check all readings against the
specified values - particularly the indoor
fan amps if the unit is installed in a free
blow application.
5. Fit R410A compatible gauges and
measure the suction and discharge
pressures.
6. In cooling mode, test the operation
of the high pressure safety control by
safely disconnecting the outdoor air fan.
7. Test the operation of the reversing valve
by running the unit in both the heating
and cooling mode.
8. Check that the motors are running
smoothly.
9. Check the supply air flow at each outlet.
10. Touch up any outdoor unit paintwork
damage to prevent corrosion.
UNIT CONTROLLER (UC7)
The Unit Controller provides system
protection functions such as coil frost
protection, de-icing, high head pressure and
low suction pressure cut-out. It also protects
against rapid cycling of the compressor(s)
and loss of refrigerant. Various methods
of head pressure control (or limiting)
are employed in temperzone units. The
particular method used varies from model
to model, but is also handled by the Unit
Controller. In combination, these features
deliver optimised performance across a
wide operating temperature range.
As a result of the UC’s control of these
inter-related functions, the outdoor fans may
take some time to start rotating after each
compressor start. They may also run on
when the compressor stops. The fans will
stop during a de-ice cycle. The speed will
vary either smoothly, or in steps, in order to
protect against excessively low or high head
pressure.
Refer to UC7 Controller label on the unit or
www.temperzone.biz for operation & fault
diagnostics information; model search 'UC7'.
MAINTENANCE
Weekly For First Four Weeks
1. Check indoor air filters (if fitted) and
vacuum or wash clean as necessary.
2. Check condensate drain for free
drainage.
3. Check compressor compartment for oil
stains indicating refrigerant leaks.
SUPPLY
AIR
RETURN
AIR
1158
MOUNTING CENTRES
1230
OVERALL
1200
OVERALL
OUTDOOR
AIR FLOW
500 MIN.
CLEARANCE
1000 MIN. CLEARANCE
X
Y
Z
W
OUTDOOR
AIR FLOW
ELECTRICAL
ACCESS
PANEL
60
440
35
100
ACCESS
PANEL
2000 MIN. CLEARANCE
1175
OVERALL
95
1032
800
MOUNTING CENTRES
12 DIA. HOLES
DRAIN
15 BSPF
11
ELECTRICAL
HOLES
25 DIA.
187
256
205
95
1032
500 MIN. CLEARANCE
4. Check tightness of electrical
connections.
Six Monthly
1. Check the tightness of all fan and motor
mountings.
2. Check tightness of electrical
connections.
3. Check suction and discharge operating
pressures.
4. Replace indoor unit air filters (if fitted).
5. Check condensate drain for free
drainage.
Yearly
1. Check all refrigerant piping for chafing
and vibration.
2. Check the operation of electric heaters,
if fitted.
3. Check air supply at all diffusers.
4. Check for excessive noise and vibration
and correct as necessary.
5. Check for insulation and duct damage
and repair as necessary.
6. Remove lint and dust accumulation
from outdoor coil fins.
7. Touch up any outdoor unit paintwork
damage to prevent corrosion.
NOTE
Specifications are subject to change without
notice due to the manufacturer's ongoing
research and development programme.