Quietside QSCU-361 Installation & Service Manual

Manual is about: QSCU Series

Summary of QSCU-361

  • Page 1

    Qscu series installation & service manual 8750 pioneer blvd. Santa fe springs, ca 90670 phone: 562-699-6066, fax: 562-699-4351 www.Quietside.Com 6 pine hill dr, carlisle pa 17013 phone: 717 243 2535, fax: 717 243 7917.

  • Page 2

    This manual to is to aid the qualified hvac contractor in the installation and maintenance of this quietside r410a side discharge condensing unit please read and understand these instructions prior to installing the unit, failure to comply with these instructions may result in improper installation,...

  • Page 3

    Installer supplied items refrigerant line set : brazed connection only, suitable for r410a with both lines insulated, max length 100ft. Main system breaker : sized per unit requirements, to be mounted adjacent to outdoor unit. Local disconnect and power whip : mounted adjacent to condensing unit. Lo...

  • Page 4: Unit Installation

    Controls and components units are set up to be used with a 24v ac cooling only or cool - supplemental heat thermostat two wires are connected from either the thermostat or the indoor unit (depending on indoor unit model) to the outdoor unit all unit operating functions are controlled via the thermos...

  • Page 5: Unit Installation (Cont)

    Step 2 (cont) do not install the outdoor unit in a location exposed to high winds (field fabricated and installed wind baffle may be required). When installing unit on roof ensure that if possible unit is faced so that airflow through the unit is not affected by any prevailing wind ensure location d...

  • Page 6: Unit Installation (Cont)

    Step 3 refrigerant line set piping use only refrigerant grade copper tubing, ensure line set sizing follows the published table. Interconnecting line set between the outdoor unit and the indoor unit, must have the suction refrigerant line insulated with a minimum of 3/8" thick armaflex or similar in...

  • Page 7: Unit Installation (Cont)

    Step 4 connect refrigerant line set piping flow nitrogen or other inert gas through piping while brazing to prevent formation of copper oxide. To avoid damage while brazing, service valves need to be wrapped with a heat-sink material such as a wet cloth to prevent possible damage to the valve seals ...

  • Page 8: Installation (Cont)

    Installation (cont) step 6 main power wiring electrical wiring should be done in accordance with all national electrical code (nec) and local state/city building codes breaker size and wiring must be sized for the rating plate amperage, mca and mop if a smaller than required breaker is used possibil...

  • Page 9: Unit Installation (Cont)

    Step 6 wiring (cont) electrical wiring should be done in accordance with all national electrical code (nec) and local state/city building codes power wiring - 208/230v to l1 and l2 ground wire to terminal e control wiring y and c wires from the air handler or thermostat to wired to the outdoor unit ...

  • Page 10: Unit Start Up

    With the refrigerant system completely evacuated the system can now be opened to allow the refrigerant charge in the outdoor unit to be released into the line set. The service valves require allen wrenches sized per the table to undo the valve stems . Remove the brass caps from the service valves to...

  • Page 11: Troubleshooting

    No cooling 1 check for a cooling signal from the indoor unit or thermostat, 24v ac should be present at the y and c terminals at the outdoor unit' if 24v ac is not present, check that the thermostat or indoor unit is calling for cooling 2 if 24v ac is present, check to ensure compressor contactor is...

  • Page 12

    Unit dimensions note : dimensions shown in feet-inches. () are millimeters. Unit models a b c d e qscu-361 37 5/8 ″ (956) 47 ¼” (1200) 17 3/4 ″ (450) 20 ″ (506) 30 15/16 ″ (786) qscu-481/601 43 ½” (1106) 47 ¼” (1200) 17 3/4 ″ (450) 20 ″ (506) 36 7/8” (936).

  • Page 14

    Parts list : qscu-361/481/601 q'ty no. Code no. Description specification qscu-361 qscu-481 qscu-601 1 kc2001 top cover secc 1 1 1 kc2009 1 2 kc2019 side frame secc 1 1 kc1001 1 3 kc1002 front cover secc 1 1 4 kc2011 fan guard swrm 1 1 1 kc2005 1 5 kc2016 fan cover secc 1 1 6 kc3005 fan ass'y al 1 1...

  • Page 16: Side Discharge Condensers

    Side discharge condensers specifications qscu-361 qscu-481 qscu-601 general nom cooling capacity (btu/h) 36,000 48,000 60,000 seer dependant on indoor dependant on indoor dependant on indoor 13 seer minimum 13 seer minimum 13 seer minimum eer dependant on indoor dependant on indoor dependant on indo...