Carrier 50KQL-1PD manual Table of contents

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Quiet operation

The Carrier Console WSHP provides exceptionally quiet operation for maxi- mum comfort.

Design flexibility

Aquazone™ Console WSHP units are offered in 5 capacity sizes and 3 differ- ent voltages to meet individual zone needs efficiently and effectively. Standard and extended operating range units are available to suit a variety of application requirements.

Safe, reliable operation

Standard safety features include: high and low pressure monitoring and field selectable water and air coil freeze pro- tection sensing. All safety controls may be reset at the thermostat. Each unit is tested and run at the factory to ensure proper operation of all components and safety switches.

All components are carefully designed and selected for endurance, durability, and carefree day-to-day operation.

The water-to-refrigerant heat exchanger has copper inner and steel outer tubing which is painted on the outside to provide corrosion resistance protection. Cupronickel heat exchang- ers are available and should be used on all open loop applications.

Units are rated and certified in accordance with ARI/ISO/ASHRAE 13256-1 performance standard, and are CSA/NRTL listed.

Installation ease

The unit is packaged for simple, low cost handling, with minimal time re- quired for installation. The console unit

arrives at the jobsite fully assembled to minimize installation time and reduce installation cost. All units are pre-wired and factory charged with R-22 refrigerant.

Water connections are available in a variety of configurations direct from the factory. The standard configuration is 5/8 in. OD Sweat connections for maximum flexibility in the field. Both FPT and MPT are available as factory- installed options to improve installation efficiency. Additionally, factory- installed motorized water shutoff valves are available for use on energy conserving systems employing a variable pumping technique.

The standard electrical connections are made quickly and directly to a pow- er distribution terminal block. To fur- ther improve installation efficiency, a fused or unfused disconnect switch as well as a 20 amp plug and cord are available as factory-installed options.

A 5/8 in. ID vinyl condensate con- nection is provided for connection to the field-installed condensate line.

Compact cabinet design dimen- sions are 12 in. deep, 48 in. wide and

24in. tall (with 3 in. subbase). For flex- ibility, the controls can be mounted on the top right or left side. Additionally, the sloped top design discourages the use of the unit as a shelf or coffee hold- er, preventing air blockage and any spills from damaging the unit.

No-fuss maintenance and serviceability

Regular maintenance or service to the console WSHP units require little time. Large service access panels enable

quick inspection for problem solving and the control box swings down for easy access to the controls.

Fan motor sleeve bearings are permanently lubricated for worry-free performance. If the unit does require service, an easily removable cabinet and slide out fan section make access simple.

Refrigerant circuit protection is de- signed to result in fewer service calls. Units are equipped with easily accessi- ble service access ports on both the suction and the discharge refrigerant lines for on-site testing and environ- mentally correct refrigerant recovery. Filter racks provide easy filter access for cleaning.

Maximum control flexibility

Aquazone water source heat pumps provide reliable control operation using a standard microprocessor board.

Flexible alternatives for many direct digital control (DDC) applications in- clude the Carrier Comfort Network (CCN) and open protocol systems.

Carrier’s Aquazone standard unit solid-state control system, the Com- plete C, provides control of the unit compressor, reversing valve, fan, safety features, and troubleshooting fault indi- cation features. The Complete C is one of the most user friendly, low cost, and advanced control boards found in the WSHP industry. Many features are field selectable to provide the ultimate in field installation flexibility. The overall features of this standard control system include:

50 va transformer — Assists in accommodating accessory loads.

Table of contents

 

Page

 

 

 

 

Features/Benefits

. .1-3

 

 

 

 

Model Number Nomenclature

. . . 4

 

 

 

 

ARI/ISO 13256-1 Capacity Ratings

. . . 5

 

 

 

 

Physical Data

. . . 5

 

 

 

 

Options and Accessories

. .6-8

 

 

 

 

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dimensions

.9-13

 

 

 

 

Selection Procedure

14,15

 

As an ENERGY STAR® Partner,

Performance Data

16-21

 

Carrier Corporation has deter-

 

mined that this product meets

Application Data

22-24

NRTL/C

the ENERGY STAR guidelines

Electrical Data

. . 24

for energy efficiency.

 

 

 

 

Typical Wiring Schematics

25-31

 

 

 

 

Typical Piping

. . 32

 

 

 

 

Guide Specifications

33-36

 

 

 

 

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Contents Features/Benefits Operating efficiencyTable of contents Features/Benefits Model number nomenclature Q L 0 7 S a E C 1 0 1 a aARI/ISO 13256-1 capacity ratings Physical dataOptions and accessories Factory-installed optionsField-installed accessories 50KQL Control Options TableCarrier Aquazone Thermostats Premierlink Communicating ControlDimensions 50KQL Bottom Return Cabinet Dimensions Right Hand Piping50KQL Bottom Return Cabinet Dimensions Left Hand Piping Rear View Access Damper OP Ening50KQL Front Return Cabinet Dimensions Right Hand Piping Rear Access50KQL Front Return Cabinet Dimensions Left Hand Piping Rear Access Rear View50KQL Chassis Dimensions Size 07, 09, 12, 15 Selection procedure with 50KQL12 example Page Performance data 50KQL07 Nominal Airflow 240 CFM12.3 50KQL09 Nominal Airflow 300 CFM12.2 11050KQL12 Nominal Airflow 350 CFM 13.9 10.4 17.6 50KQL15 Nominal Airflow 400 CFM17.6 13.8 16.7 11.5 21.1 50KQL19 Nominal Airflow 460 CFM15.1 Correction Factors Entering AIR Correction Factors AirflowGround water systems Application dataWater loop system Ground loop systemsAcoustical design Condensate drainageWater conditioning Water Quality GuidelinesOperating limits Wshp sound controlConsole units Starting conditionsTypical wiring schematics Manual Changeover with Complete C ControllerManual Changeover with Deluxe D Controller CB* NoteAutomatic Changeover with Complete C Controller High FANAutomatic Changeover with Deluxe D Controller UMTTransformer Water Valve Field Line Voltage Wiring REMOTE-MOUNTED Thermostat with Complete C ControllerREMOTE-MOUNTED Thermostat with Deluxe D Controller Premierlink Controller Applications with Complete C Control Supply Air Temperature SensorSpace Temperature Sensor Premierlink Controller Applications with Deluxe D ControlTypical piping 50KQL Piping DetailGuide specifications Console Water Source Heat PumpsGuide specifications Page Carrier Corporation Syracuse, New York