Johnson Controls York VCH 20A, Technical Information

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2
- Performances of indoor fan assembly: Standard and with
High Speed Drive
28
- Indoor fan High Speed Drive 29
- Outdoor fan services 30
- Wiring diagrams 31 - 33
- Configuration of switches, failures and incidents 34
- Cooling capacities (VCH only) 35
Accessories and Options 36
- Weight of acsessories 36
Hot Water Coil
37
- General information 37
- Technical specifications 37
- Installation 39
- Operation 40 - 41
- Physical data 41
- Data with water, without GLYCOL 42
- Hydraulic circuit flow/pressure characteristics,
hot water coil VIR 25A to 90A
42
- Pressure drop of air circuit 42
- Wiring diagram 43
Internal Electric Heaters for VIR 25A to 90A 44
- Technical specifications 44
- Assembly and general dimensions 44 - 46
- General characteristics 47
- Dimensions with packing, and weights 47
- Installation 47
- Wiring diagrams 48 - 49
Vertical Air Discharge for: VIR 25A to 90A 50
Vertical Air Discharge Conversion for:
VCH 20A, 25A, 30A and 40A
51 - 52
Vertical Air Discharge Conversion for:
VCH 45A, 60A, 75A and 90A
53 - 54
Condensation Control VCH 20 to 90A
55
- Operation 55
- Programming and adjustment 55
- Horizontal air discharge assembly 56
- Vertical discharge assembly 56
- Checking 57
- Location of components 57 - 60
- Wiring diagrams 61 - 62
Tray Heater 63
- Assembly 63
Economiser 64
- Technical specifications 64
- Installation 64
- Operation 65
- Economiser, general dimensions 66
- Economiser assembly, standard configuration 67
- Return air sensor, outdoor and impulse 68
- Economiser control board 68
- Wiring diagram 69
Static Starter (Soft Start) 70
- Status indicator LED 70
- Electrical interconnection 70
- Operating diagram 70
Index
General Information 3
- General description 3
- Nomenclature 3
Technical Specifications 3
- Mechanical specifications 3
- Operating diagram 4
- Thermostat 4
- DPC-1 ambient thermostat 4
- International YKtool 5
- YKphone 485 5
- Physical data 6
Installation Instructions
7
- Environmental protection 7
- Elimination of the unit 7
- Safety 7
- Transportation 7
- Warning signs 7
- Location of indoor units VIR 25 to 90A 8
- Location of outdoor units VCH 20 to 90A 8
- Clearances 8
- Fastening the indoor unit to the ceiling 9
- Outdoor unit air ducts 9
- Indoor unit air ducts 9
- Drain connections, VCH 20 to 90A outdoor unit 9
- Drain connections VIR 25 to 90A indoor unit 9
- Drain pipe insulation 9
Interconnecting the units
9
- Installation of the unit 9
- Installation of interconnecting pipes 9 - 10
- Pipes to be used 10
- Insulation of refrigerant pipes 10
- Draining and drying 10
- Refrigerant charge 10
- Refrigerant charge and pipe diameters 11
- Checking for leaks 12
- Application of R-410A refrigerant 12
Wiring
12
- Electrical connections 12
- Indoor fan connections, VIR-25A to 90A 12
- Thermostat connection 12
- Setting the electronic board 12
- Selecting cool only function 12
- Rotational direction of Scroll compressors 12
- Limits of use 13
- YKlon control board 13
- Power supply connection and interconnecting diagrams 14
- Electrical characteristics 14 - 15
- Prior to approving the installation 15
- Maintenance of the units 16
Technical Characteristics 17
- General dimensions 17 - 22
- Cooling diagram 23
- Variant chart 23
- Nominal performances 24
- Test conditions 24
- Correcting factors 24
- Capacity correcting factors in accordance with the
length and height between units
25
- Sound level (Nominal flow and static pressure available) 25
- Sensible cooling capacities 26 - 27
- Nominal flows 28
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