Carrier 50PTH Heat Pump User Manual


 
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500079-01 Printed in U.S.A. Form 50PT-4SI Pg 1 7-10 Replaces: 50PT-3SI
Installation, Start-Up, and Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
FIELD CONVERSION OF DISCHARGE AIR
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 9
HORIZONTAL UNIT
VERTICAL UNITS
Step 5 — Check Duct System . . . . . . . . . . . . . . . . . . . . 9
SOUND ATTENUATI ON
EXISTING DUCT SYSTEM
Step 6 — Install Condensate Drain . . . . . . . . . . . . . . . 9
HORIZONTAL UNIT
VERTICAL UNITS
VENTING
Step 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . . . 10
WATER LOOP APPLICATIONS
GROUND-WATER APPLICATIONS
GROUND-LOOP APPLICATIONS
INSTALLATION OF SUPPLY AND RETURN HOSE
KIT
Step 8 — Wire Field Power Supply . . . . . . . . . . . . . . 12
POWER CONNECTION
SUPPLY VOLTAGE
208-VOLT OPERATION
460-VOLT OPERATION
WSHP OPEN WIRING
Step 9 — Wire Field Controls. . . . . . . . . . . . . . . . . . . . 25
THERMOSTAT CONNECTIONS
WATER FREEZE PROTECTION
AIR COIL FREEZE PROTECTION
ACCESSORY CONNECTIONS
WATER SOLENOID VALVES
Step 10 — Operate ECM Interface Board . . . . . . . . 27
STANDALONE — NO DDC CONTROLS
WSHP OPEN CONTROLS
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29,30
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
FIELD SELECTABLE INPUTS. . . . . . . . . . . . . . . . . 30-33
Complete C Control Jumper Settings. . . . . . . . . . . . 30
Deluxe D Control Jumper Settings . . . . . . . . . . . . . . 30
Complete C Control DIP Switches . . . . . . . . . . . . . . . 30
Deluxe D Control DIP Switches. . . . . . . . . . . . . . . . . . 30
Units with Modulating Hot Water Reheat
(HWR) Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
STANDALONE — NO DDC CONTROLS
WSHP OPEN CONTROLS
HWR APPLICATION CONSIDERATIONS
HWR COMPONENT FUNCTIONS
Deluxe D Control Accessory
Relay Configurations. . . . . . . . . . . . . . . . . . . . . . . . . 32
Page
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-38
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 34
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 34
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 34
Unit Start-Up with WSHP Open Controls . . . . . . . . 36
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 38
Ground Coupled, Closed Loop and Plateframe
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 38
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-42
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Units with Aquazone™ Complete C Control . . . . . 39
Units with Aquazone Deluxe D Control . . . . . . . . . . 39
Units with WSHP Open Multiple Protocol. . . . . . . . 39
COMPLETE C AND DELUXE D BOARD
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42,43
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 43
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Aquazone Deluxe D Control LED Indicators . . . . . 43
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44,45
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 44
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 44
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 45
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 45
Replacing the WSHP Open Controller’s
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 45-53
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Control Sensors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
WSHP Open Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Thermostatic Expansion Valves . . . . . . . . . . . . . . . . . . 46
Stopped or Malfunctioned ECM Motor. . . . . . . . . . . . 50
Moisture Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
APPENDIX A — WSHP OPEN SCREEN
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 54-59
50PTH,PTV,PTD START-UP
CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . CL-1, CL-2
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical
IMPORTANT: Read the entire instruction manual before
starting installation.
AQUAZONE™
50PTH, PTV, PTD026-072
Two-Stage Water Source Heat Pumps
with PURON
®
Refrigerant (R-410A)