
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata
10VERTICAL UNITS (50PSV, PSD) — Each unit uses a con-densate hose inside all cabinets as a trapping loop, therefore anexternal trap is not necessary.
11Table 2 — Water Quality GuidelinesLEGEND*Heat exchanger materials considered are copper, cupronickel, 304 SS(stainless steel), 316 SS, titanium.†Clo
12In all applications, the quality of the water circulatedthrough the heat exchanger must fall within the ranges listed inthe Water Quality Guidelines
13Optional pressure-rated hose assemblies designed specifi-cally for use with Carrier units are available. Similar hoses canbe obtained from alternate
14*Optional.AL — Alarm Relay ContactsASTAT — AquastatBR — Blower RelayCB — Circuit BreakerCC — Compressor ContactorCO — Condensate Overflow SensorCOMP
15*Optional.AL — Alarm Relay ContactsASTAT — AquastatBM — Blower MotorBMC — Blower Motor CapacitorBR — Blower RelayCB — Circuit BreakerCC — Compressor
16*Optional.AL — Alarm Relay ContactsASTAT — AquastatBM — Blower MotorBR — Blower RelayCB — Circuit BreakerCC — Compressor ContactorCO — Condensate Ov
17Wire NutRelay Contacts - N.C.Relay Contacts - N.O.Low Pressure SwitchHigh Pressure SwitchSplice CapCircuit BreakerNOTES:1. Compressor and blower mot
18NOTES:1. Compressor and blower motor thermally protected internally.2. All wiring to the unit must comply with NEC and local codes.3. Transformer is
19ThermistorGroundWire NutRelay Contacts - N.C.Relay Contacts - N.O.Low Pressure SwitchHigh Pressure SwitchSplice CapCircuit BreakerCapacitorLEDGNOTES
2SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipment canbe hazardous due to system pressure and electrical compo-nents. Only
20Fig. 21 — Units with Complete C and WSHP Open Multiple Protocol ControlsWHSP-OPENA50-8355LEGENDBM — Blower MotorBR — Blower RelayCO — Condensate Ove
21WSHP-OPENFig. 22 — Units with Deluxe D and WSHP Open Multiple Protocol ControlsA50-8354LEGENDBM — Blower MotorCO — Condensate OverflowLWT — Leaving
22WSHP-OPENFig. 23 — Units with Complete C, ECM and WSHP Open Multiple Protocol ControlsA50-8356LEGENDCO — Condensate OverflowLWT — Leaving Water Temp
23WSHP-OPENFig. 24 — Units with Deluxe D, ECM and WSHP Open Multiple Protocol ControlsA50-8353LEGENDCO — Condensate OverflowLWT — Leaving Water Temper
24012207-1BT485BTLED1DBInstall BT485 where device is located at the end of network segment only.+ 24vac(If not installed, it must be connected to DO-5
25Table 4 — 50PSH, PSV, PSD Electrical Data — PSC MotorLEGEND NOTE: Unit sizes 006-012 are not available on 50PSD units.Table 5 — 50PSH, PSV, PSD Elec
26Table 6 — 50PSH, PSV, PSD Electrical Data, ECM MotorLEGEND NOTES:1. The 460-v units using an ECM (electronically commutated motor) fanmotor, modulat
27Step 9 — Wire Field ControlsTHERMOSTAT CONNECTIONS — The thermostat shouldbe wired directly to the ECM control board. See Fig. 27.WATER FREEZE PROTE
28WSHP OPEN WIRING — The WSHP Open controller willbe factory mounted to the unit control panel and wired to theComplete C or Deluxe D control board, h
293. Wire each terminal on the sensor to the same terminal onthe controller. See Fig. 15-25. Table 10 shows the recom-mended Rnet wiring scheme.Table
3Table 1 — Physical Data — 50PSH, PSV, PSD018-070 UnitsLEGEND *Unit sizes 006-012 not available on 50PSD unit.NOTE: All units have spring compressor m
30DEHUMIDIFICATION MODE — The dehumidification modesetting provides field selection of humidity control. When oper-ating in the normal mode, the cooli
31Table 12 — PSC Blower Motor Performance Data LEGENDNOTES:1. Shaded areas denote ESP where operation is not recommended.2. Units
32PRE-START-UPSystem Checkout — When the installation is complete,follow the system checkout procedure outlined below beforestarting up the system. Be
33Heating/Cooling Thermostat Type — Switch 3 provides se-lection of thermostat type. Heat pump or heat/cool thermostatscan be selected. Select OFF for
34HWR APPLICATION CONSIDERATIONS — Unlikemost hot gas reheat options, the HWR option will operateover a wide range of entering-water temperatu
35Deluxe D Control Accessory Relay Configura-tions — The following accessory relay settings are applica-ble for Deluxe D control:CYCLE WITH FAN — In t
364. Check the temperature of both supply and dischargewater. Compare to Tables 20-30. If temperature is withinrange, proceed. If temperature is outsi
37Table 22 — 50PSH, PSV, PSD012 Typical Unit Operating Pressures and TemperaturesLEGENDTable 23 — 50PSH, PSV, PSD018 Typical Unit Operating Pressures
38Table 25 — 50PSH, PSV, PSD030 Typical Unit Operating Pressures and TemperaturesLEGENDTable 26 — 50PSH, PSV, PSD036 Typical Unit Operating Pressures
39Table 28 — 50PSH, PSV, PSD048 Typical Unit Operating Pressures and TemperaturesLEGENDTable 29 — 50PSH, PSV, PSD060 Typical Unit Operating Pressures
4Before installing any of the system components, be sure toexamine each pipe, fitting, and valve, and remove any dirt orforeign material found in or o
40Unit Start-Up with WSHP Open ControlsThe WSHP Open is a multi-protocol (default BACnet*) con-troller with extensive features, flexible options and p
41f. Press OK to apply and save to a particular day ofthe week.g. Continue to add the same or different schedule spe-cific days of the week.To add exc
42Calculate the total volume of fluid in the piping system. SeeTable 32. Use the percentage by volume in Table 33 to deter-mine the amount of antifree
43application, all compressor relays and related functions willoperate per their associated DIP switch 2 setting on S1.HEATING STAGE 3 — In Heating St
44NOTE: Scheduling can either be controlled via the unit or theBAS, but not both.INDOOR FAN — The indoor fan will operate in any one ofthree modes dep
45speed. Should this be insufficient, and the SAT rises furtherreaching the maximum heating SAT limit, the fan will beindexed to the maximum speed. If
46screen. The following conditions must be true for economizeroperation:• SAT reading is available.• LWT reading is available.• If occupied, the SPT i
47Table 35 — Complete C Control LED Code andFault DescriptionsLEGENDWSHP Open Test Mode — To enter WSHP Open testmode, navigate from the BACview6 home
48SERVICEPerform the procedures outlined below periodically, asindicated.Filters — Filters must be clean for maximum performance.Inspect filters every
49Checking System Charge — Units are shipped withfull operating charge. If recharging is necessary:1. Insert thermometer bulb in insulating rubber sle
5NOTES:1. Condensate is 3/4-in. FPT copper.2. Horizontal unit shipped with filter bracket only. This bracket should beremoved for return duct connecti
50WSHP Open Controller — With the WSHP Open con-troller option, the 100 most recent alarms can be viewed usingthe BACview6 alarm status and alarm hist
51The bulb must be secured to the pipe using a copper strap.The use of heat transfer paste between the bulb and the pipewill also help ensure optimum
52See Tables 37-39 for additional troubleshootinginformation.Table 37 — ECM TroubleshootingIMPORTANT: Always recover the refrigerant from thesystem wi
53Fig. 40 — ECM Pin Connectorsa50-8448
54Stopped or Malfunctioned ECM Motor — Referto Fig. 41 to determine the possible cause of a stopped or mal-functioned ECM motor. Follow the instruct
55Moisture Check — To perform moisture check:• Check that connectors are orientated “down” (or as recom-mended by equipment manufacturer).• Arrange ha
56Table 39 — WSHP Troubleshooting (cont)LEGENDFAULT HEATING COOLING POSSIBLE CAUSE SOLUTIONCondensate Fault —Code 6X X Blocked drain Check for blockag
57Table 39 — WSHP Troubleshooting (cont)LEGENDFAULT HEATING COOLING POSSIBLE CAUSE SOLUTIONHigh Head Pressure X Reduced or no airflow inheatingCheck f
58APPENDIX A — WSHP OPEN SCREEN CONFIGURATIONLEGENDSCREEN NAME POINT NAMEPASSWORD LEVELEDITABLE RANGE DEFAULT NOTESEquipmentStatusOperating ModeNo Pas
59APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont)LEGENDSCREEN NAME POINT NAMEPASSWORD LEVELEDITABLE RANGE DEFAULT NOTESUnitMaintenanceOperating Mod
6a50-8183R - Configuration Right Return / Top Discharge - Top ViewL - Configuration Left Return / Top Discharge - Top View Right Return- Air Coil Open
60APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont)LEGENDSCREEN NAME POINT NAMEPASSWORDLEVELEDITABLE RANGE DEFAULT NOTESConfigurationSet PointsOccupi
61APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)LEGENDSCREEN NAME POINT NAMEPASSWORD LEVELEDITABLE RANGE DEFAULT NOTESConfigurationUnitConfigurati
62APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)LEGENDSCREEN NAME POINT NAMEPASSWORD LEVELEDITABLE RANGE DEFAULT NOTESConfigurationServiceConfigur
63APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)LEGENDSCREEN NAME POINT NAMEPASSWORD LEVELEDITABLE RANGE DEFAULT NOTESConfigurationAlarmConfigurat
64
65
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata
CL-150PSH,PSV,PSD START-UP CHECKLISTCUSTOMER:___________________________ JOB NAME: _______________________________________MODEL NO.:__________________
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata
7Fig. 4 — 50PSD Dimensional Data2' ServiceAccess Air Coil SideGFDKJL4 3 2 1 5 CAPTURSAir CoilCSPFrontBackFront-View BSPLeft Return Left View - A
8Step 3 — Locate Unit — The following guidelinesshould be considered when choosing a location for a WSHP:• Units are for indoor use only.• Locate in
9Preparation — The unit should be on the ground in a well litarea. Hung units should be taken down to ground level beforeconverting.Side to Back Disch
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