Owner`s manual

17
INSTALLATION SPECKS
Tightening Torques:
INSTALLATION INSTRUCTIONS - Initial Diagnotics
• For 110~120 Model systems, when the power is connected, the measured voltage between
the L and N terminals of both Indoor and outdoor units should be 110~120 VAC.
• For 208~230 Model systems, when the power is connected, the measured voltage between
the L1 and L2 terminals of both Indoor and outdoor units should be 208~230 VAC.
• When the compressor is running, the measured voltage between the 1 and G terminals of
both Indoor and outdoor units should be 110~120 VAC. (G is ground lug in outdoor unit)
• When the outdoor fan is running, the measured voltage between the 2 and G terminals of
both Indoor and outdoor units should be 110~120 VAC. (G is ground lug in outdoor unit)
• When the system is in HEAT mode, the measured voltage between the 3 and G terminals
of both Indoor and outdoor units should be 110~120 VAC. (G is ground lug in outdoor unit)
• Always assure that same color coded wires connect to same numbered terminal positions
at both the Indoor and Outdoor Units’ terminal blocks and none are inverted or crossed.
• In case a component is not energized, check for continuity on the specific cable feeding
that device all across its length. Core of the cable may have been pinched/broken.
• If power properly reaches the indoor unit and the indoor unit does not display any lights,
check for the condition of the fuse located on the indoor unit’s electronic controller card.
• If there is no cooling or heating effect, or the cooling or heating effect is weak, check to
make sure the outdoor units valves are opened fully following a proper vacuuming/evacuation
procedure. Check for the entire length of the piping set for kinks and collapses. Check and
verify the pressure measured at the gas valve’s service port. Check to make sure both service
valves at the outdoor unit are cold (Approx 36~42°F) in cooling mode and hot (Approx 80~110°F)
at heating mode. Assure that the surfaces of the valves, portions of the line set and/or the
indoor unit’s heat exchanger coil are not frozen.
• If there is water dripping from the indoor unit, assure that the drainage hose is properly
routed, not kinked or collapsed, does not have any upward inclination or siphons. Observe
that the condensate water is dripping from the end of the drain hose.
• If the discharge areas of the indoor unit is sweating in cooling mode, assure there are no
open windows or doors that can create high indoor humidity conditions.