421 01 6002 01 oct 2009 installation instructions r−410a two−stage split system air conditioner product family: h4a6, c4a6, t4a6 h4a8, c4a8, t4a8 these instructions must be read and understood completely before attempting installation. Danger, warning, caution, and note the signal words danger, warn...
Installation instructions r−410a, two−stage split system air conditioner 2 421 01 6002 01 inspect new unit after uncrating unit, inspect thoroughly for hidden damage. If damage is found, notify the transportation company immediately and file a concealed damage claim. Safety considerations consult a ...
Installation instructions r−410a, two−stage split system air conditioner 421 01 6002 01 3 figure 1 clearances (various examples) wall 6” (152mm) 24” (610mm) service wall wall wall 6” (152mm) 6” (152mm) post wall w all 18” (457mm) 18” (457mm) 18” (457mm) 18” (152mm) 6” (152mm) 6” (152mm) 6” (152mm) 1...
Installation instructions r−410a, two−stage split system air conditioner 4 421 01 6002 01 unit support note: unit must be level 2 degrees { inch rise or fall per foot of run (10mm rise or fall per 305mm of run) } or compressor may not function properly. A. Ground level installation the unit must be ...
Installation instructions r−410a, two−stage split system air conditioner 421 01 6002 01 5 figure 3 typical txv installation txv sensing bulb equalizer tube ÉÉ ÉÉ ÉÉ ÉÉ 8 o’clock 4 o’clock strap sensing bulb (either side) suction tube indoor coil suction tube liquid tube b. Refrigerant line sets the ...
Installation instructions r−410a, two−stage split system air conditioner 6 421 01 6002 01 ! Caution unit operation hazard failure to follow this caution may result in improp- er product operation. Do not bury more than 36” (1m) of line set under- ground. Refrigerant may migrate to cooler buried sect...
Installation instructions r−410a, two−stage split system air conditioner 421 01 6002 01 7 h. Evacuating line set and indoor coil the unit is shipped with a factory refrigerant charge. The liquid line and suction line service valves have been closed after final testing at the factory. Do not disturb ...
Installation instructions r−410a, two−stage split system air conditioner 8 421 01 6002 01 i. Opening service valves outdoor units are shipped with a refrigerant charge sealed in the unit. Opening the service valves releases this charge into the system. Note: open the suction service valve first. If ...
Installation instructions r−410a, two−stage split system air conditioner 421 01 6002 01 9 airflow selection two−stage compressor operation requires two different indoor airflow settings for proper operation. This outdoor unit is designed for use only with an indoor blower that can be configured for ...
Installation instructions r−410a, two−stage split system air conditioner 10 421 01 6002 01 figure 11 rating plate (required) subcooling temperature ° f ( ° c) measured liquid pressure (psig) ° f ( ° c) ° f ( ° c) ° f ( ° c) ° f (° c) f (° c) f ( ° c) 6 3 8 4 10 6 12 7 14 8 16 9 r−410a required liqui...
Installation instructions r−410a, two−stage split system air conditioner 421 01 6002 01 11 compressor operation the basic scroll design has been modified with the addition of an internal unloading mechanism that opens a by−pass port in the first compression pocket, effectively reducing the displacem...
Installation instructions r−410a, two−stage split system air conditioner 12 421 01 6002 01 two−stage compressor resistance (winding resistance) at 70 ° f +/− 20 ° f (21 °c +/− 11 ° c) winding *4a624 *4a836 *4a648 *4a660 start (s−c) 1.40 1.29 1.52 0.60 run (r−c) 1.32 0.89 0.64 0.49 note: the rectifie...
Installation instructions r−410a, two−stage split system air conditioner 421 01 6002 01 13 figure 13 comfort alert t ultratech t diagnostics status led status led description status led troubleshooting information green “power” module has power supply voltage is present at module terminals red “trip...
Installation instructions r−410a, two−stage split system air conditioner 14 421 01 6002 01 status led status led description status led troubleshooting information yellow “alert” flash code 5 open high voltage circuit 1. Outdoor unit power disconnect is open 2. Compressor circuit breaker or fuse(s) ...
Installation instructions r−410a, two−stage split system air conditioner 421 01 6002 01 15 r−410a quick reference guide • r−410a refrigerant operates at 50% − 70% higher pressures than r−22. Be sure that servicing equipment and replacement components are designed to operate with r−410a. • r−410a ref...