Johnson Controls HVAHP1921CW Series Air Manuals

Manuals and User Guides for Johnson Controls HVAHP1921CW Series Air. We have 1 Johnson Controls HVAHP1921CW Series Air manual available for free PDF download: Service Manual

Johnson Controls HVAHP1921CW Series Service Manual (416 pages)

INVERTER-DRIVEN MULTI-SPLIT SYSTEM HEAT PUMP AIR CONDITIONERS, Outdoor Units Low Ambient VRF Heat Pump

Brand: Johnson Controls | Category: Air Conditioner | Size: 20 MB

Table of Contents
11
Introduction
17
Important Safety Instructions
17
Before Installation
22
Factory-Supplied Accessories
22
Necessary Tools and Instrument List for Installation
23
Flaring and Joint
25
Line-Up of Outdoor Units
27
Combinations of Indoor Units and Outdoor Units
28
Caution about Outdoor Unit Installation
29
Piping Work between Outdoor Units
29
Outdoor Unit Installation
30
Installation Location and Precautions
30
Service Space
31
Transportation and Installation Work
34
Transportation
34
Handling of Outdoor Unit
36
Installation Work
37
Concrete Foundations
37
Condensate Treatment
39
Refrigerant Piping Work
40
Piping Materials
41
Piping Connection Work
44
Stop Valve
44
Piping Connection Method
45
Outdoor Unit
48
Piping Work between Outdoor Units
48
Piping Size between Outdoor Units
51
Piping Size and Multi-Kit Selection
53
Multi-Kit Connection
59
Electrical Wiring
60
General Check
61
Electrical Wiring Connection
61
Electrical Wiring for Outdoor Unit
64
Electrical Wiring Connections of Indoor Unit, and Outdoor Unit
65
DIP Switch Setting of Outdoor Unit
68
Additional Refrigerant Charge
72
Airtight Test
72
Vacuuming
74
Charging Work
74
Additional Refrigerant Charge Calculation
76
Automatic Simple Judgment System for Refrigerant Amount
77
Test Run
80
Before Test Run
80
Test Run
82
Optional Parts
89
- For Outdoor Unit
  89
  - Drain Adaptor
    90
  - Protection Net
    92
  - Snow Protection Hood
    101
  - Topping Prevention Tool
    127
  - Seismic Kit
    129
- Piping Kit
  133
  - Piping Connection Kit
    134
  - Multi-Kit (Line Branch)
    150
  - Multi-Kit (Header Branch)
    150
2 Operation

163
3 Troubleshooting

165
- Initial Troubleshooting
  166
- Troubleshooting Procedures
  202
  - Alarm Code Table
    202
  - Troubleshooting Using Alarm Codes
    203
  - Abnormalities of Devices
    270
- Procedures for Checking
  274
  - Self-Checking of Pcbs Using Wired Controller
    274
  - Self-Checking of Wired Controller
    274
- Test Run
  275
4 Maintenance

285
- Maintenance of Outdoor Unit
  286
  - Removing Front Service Cover
    286
  - Attaching Front Service Cover
    287
  - Removing Top Cover and Upper Cover
    288
  - Removing Protection Net
    290
  - Removing Electrical Box Cover
    291
  - Removing Electrical Box
    292
  - Removing Electrical Box Support and Reinforcement Support
    293
  - Removing Transformer Box Cover
    294
  - Removing Transformer Box
    294
  - Removing Air Grille
    296
  - Removing Outdoor Fan Motor
    297
  - Removing Compressor
    299
  - Replacing Refrigerant Oil
    308
  - Removing Coils
    312
  - Removing Stop Valve
    318
  - Removing High Pressure Switch, High Pressure Sensor, Low Pressure Sensor and Thermistor
    319
  - Removing Thermistor for Liquid Pipe
    321
  - Removing Thermistor for Ambient Temperature
    322
  - Removing Other Electrical Components
    323
  - Removing Transformer
    331
- Main Parts
  332
5 External Input/Output and Function Setting

361
6 Field Work Instructions

391
7 Service Parts List

401

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Controller

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Johnson Controls HVAHP1921CW Series Air Manuals

Johnson Controls HVAHP1921CW Series Service Manual (416 pages)

Table of Contents

2 Operation

3 Troubleshooting

4 Maintenance

5 External Input/Output and Function Setting

6 Field Work Instructions

7 Service Parts List

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