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START & COMMISSIONING
• Ensure the electrical wiring has been completed, connected and switched on at Isolator. Check for correct voltage and number of
phases.
• Switch the unit (s) on in cooling mode with the thermostat set to minimum temperature set point.
• Check suction and liquid pressure, check running current, check for noise and vibration, repair and/or rectify as required.
• Only add additional refrigerant according to weight by calculating the required amount over pre-charge. Use the adjacent chart
and add the refrigerant R410A after successfully evacuating and testing the field installed pipes. Add the extra refrigerant prior to
opening the service valves, check for leaks, and then open the service valves fully.
• There is a Schroeder Valve under the service port cap.
IMPORTANT NOTE!
All Invertair™ - True Inverter Add-On Cooling Systems are required to be commissioned and the data recorded on the Commissioning
Sheet included with these Installation Instructions provided with the unit. Commissioning sheets require a signature from the
customer. The cost associated with a customer warranty call will be charged back to the original Dealer / Contractor if evidence of
commissioning at the date of start-up is not available.
WARNING!
THE INDOOR UNIT IS SUPPLIED WITH A HOLDING CHARGE OF DRY NITROGEN.
THE OUTDOOR UNIT COMES WITH R410A CHARGE FOR LINES UP TO 9.5m.
Condensing units are supplied with R410A sufficiently charged for matching evaporator and approximately of interconnecting
tubing, depending on models. However during installation many things may happen, for example accidental release of gas. When the
refrigerant charge is in doubt, it is recommended to reclaim and recharge the condenser with a known weight of refrigerant..
DETERMINATION OF CORRECT REFRIGERANT CHARGE
The unit is shipped with a charge suitable to 7m maximum (for, SCHV10D1S & SCHV12D1S) or 9.5m maximum (SCHV14D1S
& SCHV16D1S) of pipe. Extra refrigerant, (g/m), determined from the table below, MUST be added for each metre that the field
installed pipe extends beyond the maximum pre-charge length.
Note! Where the difference in elevation between the Indoor unit and the Outdoor unit is greater than 6m, install an oil trap every 6m,
in the vertical pipe section.
CAUTION!
Remove the service gauge set from the lines carefully. Escaping liquid refrigerant can cause burns.
Liquid valve
Gas valve
Service valve
gauge port.
Service valve cap.
Service valve
cap.
Inner hexagon
Model
Pre-Charge Length (m)
SCHV10D1S
7
SCHV12D1S
SCHV14D1S
9.5
SCHV16D1S
Gauges
Valve cap
Vacuum pump
Allen key
ILL2006-B
Additional Refrigerant
Charge (g/m) above
Pre-Charge Length
60 g/m
SEELEY INTERNATIONAL - INSTALLATION MANUAL |
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