Johnson Controls HVWHP072B32S - - -; Table of Contents

SM-18006
ix
- Table of Contents -
1. Installation ..............................................................................................................................1-1
1.1 Water Source Unit ...........................................................................................................................1-2
1.2 Change-Over Box............................................................................................................................1-3
1.2.1 Single Branch Type: COBS048B22S, COBS096B22S ..........................................................1-3
1.2.2 Multiple Branch Type: COB04M132B22S,COB08M264B22S, COB12M264B22S ................ 1-3
1.2.3 Single Branch Type (for Chicago): COBS048B22C, COBS096B22C .................................... 1-3
1.3 Optional Parts (Piping Kit) ...............................................................................................................1-4
1.3.1 Multi-Kit (Line Branch) for Heat Recovery System (3-Pipes Connection):
MW-NP142X3, MW-NP282X3, MW-NP452X3, MW-NP562X3, MW-NP902X3 ...............1-4
1.3.2 Multi-Kit (Line Branch) for Heat Pump System and Heat Recovery System
(2-Pipes Connection):
MW-NP282A3, MW-NP452A3, MW-NP692A3, MW-NP902A3 ........................................1-4
1.3.3 Multi-Kit (Header Branch) for Heat Recovery System (3-Pipes Connection):
MH-NP288X ......................................................................................................................1-4
1.3.4 Multi-Kit (Header Branch) for Heat Pump System and Heat Recovery System
(2-Pipes Connection):
MH-NP224A, MH-NP288A ................................................................................................1-4
2. Operation ...............................................................................................................................2-1
3. Troubleshooting .....................................................................................................................3-1
3.1 Initial Troubleshooting .....................................................................................................................3-2
3.1.1 Checking Electrical Wiring and Power Supply .......................................................................3-2
3.1.2 Location of Printed Circuit Boards (PCBs) .............................................................................3-6
3.1.3 Checking Rotary Switch and DIP Switch Settings .................................................................3-10
3.1.4 Checking Wired Controller .....................................................................................................3-13
3.1.5 Checking Using 7-Segment Display.......................................................................................3-20
3.1.6 Checking Alarm Code History ................................................................................................3-27
3.1.7 Checking Using Service Checker ...........................................................................................3-35
3.1.8 Emergency Operation ............................................................................................................3-39
3.2 Troubleshooting Procedures ...........................................................................................................3-42
3.2.1 Alarm Code Table ...................................................................................................................3-42
3.2.2 Troubleshooting Using Alarm Codes ......................................................................................3-43
3.2.3 Abnormalities of Devices ........................................................................................................3-112
3.3 Procedures for Checking ................................................................................................................. 3-116
3.3.1 Self-Checking of PCBs using Wired Controller ......................................................................3-116
3.3.2 Self-Checking of Wired Controller .......................................................................................... 3-116
3.4 Test Run ..........................................................................................................................................3-117
3.4.1 Test Run for Water Piping ......................................................................................................3-118
3.4.2 Test Run Using Wired Controller (CIW01) .............................................................................3-119
3.4.3 Test Run from Water Source Unit Side ..................................................................................3-121
3.4.4 Checking the Test Run ...........................................................................................................3-123
3.4.5 Checklist for Refrigerant System ............................................................................................3-124
3.4.6 Reset for Accumulated Operation Time of Compressor 1-2 (cU1
- cU2 )
( : Water Source Unit No.) .................................................................................................... 3-127
3.4.7 Setting of Forced Open Valve Mode ......................................................................................3-128