start. Measure the current for each
phase feeding into the compressor’s.
Compare against the compressor amps
specified on the unit’s wiring diagram.
3. Compressors fitted are directional. Check
for correct rotation. 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. If changing the
phasing, check the indoor air fan then
runs in the correct direction also.
4. Measure the current draw of each fan
motor. Check all readings against the
specified values in the wiring diagram.
5. Use the UC6 Service Interface tool to
check operating pressures and status.
If the UC6 Service Interface is not
available, fit gauges and measure the
suction and discharge pressures of both
refrigeration circuits.
6. Check that the outdoor air fan motors are
running smoothly and drawing less than
the full load amps specified.
7. Check the indoor unit's fan belt tension
after 20 mins of operation and adjust if
necessary (refer Commissioning Sheet).
8. Test the operation of the reversing valve
by running the unit in both the heating
and cooling mode.
9. Check the supply air flow at each outlet.
10. Touch up any outdoor unit paintwork
damage to prevent corrosion.
OPA 1370RKTMG-PZ
DIMENSIONS (mm)
Not to Scale
OPA 1370RKTMG01-PZ – Horizontal Supply & Return Air
PROJECTION
Note :
A 2 m clearance
is required above the
exhaust air fans
UNIT CONTROLLER (UC6)
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 and loss of refrigerant. The UC
regulates the superheat of the refrigeration
system by controlling the position of an
Electronic Expansion Valve (EEV). Various
methods of head pressure control (or
limiting) are employed in temperzone units
including in this particular unit, variation
of compressor speed. The particular
method used varies from model to model,
but is handled by the Unit Controller.
In combination, these features deliver
optimised performance across a wide
operating temperature range.
Refer to UC6 Controller label on the unit for
operation & fault diagnostics information.
Many operating status conditions can be
determined, without gauges, simply by using
the UC6 Service Interface graphical display
supplied with the unit
.
MAINTENANCE
Monthly
1. Check 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.
Six Monthly
1. Check the tightness of electrical
connections.
2. Check the tightness of all fans and motor
mountings.
3. Check suction and discharge operating
pressures. (Using the UC6 Service
Interface avoids fitting and removing
gauges with consequential refrigerant loss.)
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 paintwork damage to
prevent corrosion.
NOTE
The manufacturer reserves the right to
make changes in specifications at any time
without notice or obligation. Certified data is
available on request.
SUPPLY
AIR
RETURN
AIR
250
2320
OVERALL
1000 MIN. CLEARANCE
1000 MIN. CLEARANCE
DRAIN
1
1
/
2
" BSP
MALE
1000 MIN. CLEARANCE
2430 OA
FAN
ACCESS
DOOR
2260
MOUNTING
CENTRES
4668 OA
2150 CENTRES
184
2150 CENTRES
184
1710
380
617
617
225
FILTER
ACCESS PANEL
ECONOMISER
WEATHER
HOOD
2000 MIN. CLEARANCE
100
ELECTRICAL
ACCESS
DOOR
ELECTRICAL
ACCESS
DOOR
OUTDOOR
AIR FLOW
OUTDOOR
AIR FLOW
U
V
W
Z
Y
X
690
230
Net Weight 2297 kg
POINT LOADS (kg)
U V W X Y Z
430 347 262 406 419 433
