York VCH-25A User manual

LARGE SPLIT AIR ‑ AIR VITALITY
SERIES Air Conditioners
VCH 20A to 90A / VIR 25A to 90A
Installation manual
Ref.: N-27696_EN 0714

Index
1Installation manual...................................................................................................................1
1.1 Safety instructions....................................................................................................................2
1.2 Icons used in this document.....................................................................................................2
1.3 Instructions for storage, transport, loading and unloading of the unit......................................3
1.3.1 Inspection.................................................................................................................................3
1.3.2 Disposal of packaging..............................................................................................................3
1.3.3 Disposal of the unit...................................................................................................................3
1.3.4 Handling...................................................................................................................................4
1.4 Technical data..........................................................................................................................4
1.4.1 Test conditions and correction factors......................................................................................4
1.4.2 Limits of use.............................................................................................................................6
1.4.3 Technical and physical data.....................................................................................................7
1.4.4 Electrical specifications............................................................................................................9
1.4.5 Rated features........................................................................................................................10
1.4.6 Options and accessories........................................................................................................11
1.4.7 VIR units with auxiliary resistor..............................................................................................12
1.5 Indoor and outdoor unit combinations....................................................................................13
1.6 Measurements, clearances and accesses.............................................................................14
1.6.1 Clearances.............................................................................................................................14
1.6.2 General dimensions...............................................................................................................15
1.7 Cooling capacities..................................................................................................................23
1.7.1 Sensible cooling capacities....................................................................................................23
1.8 Specifications table................................................................................................................24
1.8.1 Rated flows for the indoor unit................................................................................................24
1.8.2 Features of the indoor fan gear: standard and with high-speed kit........................................25
1.9 Outdoor fan features..............................................................................................................27
1.10 Instructions for installation and connection of the unit...........................................................28
1.10.1 Characteristics of the location................................................................................................28
1.10.2 Fixture of the indoor unit to the ceiling...................................................................................29
1.10.3 Air ducts.................................................................................................................................29
1.10.4 Drain connections...................................................................................................................30
1.10.5 Unit interconnection................................................................................................................31
1.10.6 Preparation and connecting to the various utilities.................................................................36
1.10.7 Safety and equipment protection systems.............................................................................40
1.11 Instructions for starting up the unit.........................................................................................41
1.11.1 Electrical checks.....................................................................................................................41
1.12 Unblocking the unit safely in case of breakdown...................................................................42
1.13 Regular maintenance tasks performed by specialised personnel..........................................43
1.13.1 Maintenance Schedule...........................................................................................................43
1.13.2 Maintenance tasks performed by specialised personnel........................................................43
1.14 Unit sound power level indication (Lw in dB A)......................................................................45
Index
i

2Wiring diagrams..................................................................................................................... 47
2.1 Micro switch configuration......................................................................................................48
2.2 Fault table.............................................................................................................................. 49
2.3 Incidents.................................................................................................................................49
2.3.1 Test button............................................................................................................................. 50
2.4 DPC-1 thermostat.................................................................................................................. 50
2.5 Unit wiring diagrams...............................................................................................................52
2.5.1 VCH 20A, 25A, 30A and 40A (400.3.50) wiring diagram....................................................... 52
2.5.2 VCH 45A, 60A, 75A and 90A (400.3.50) wiring diagram....................................................... 54
Index
ii

1
Installation manual

1.1 Safety instructions
This document contains the necessary information for the safe and efficient transportation, assembly
and installation of the air conditioning unit. This guarantees the condition of the unit and its operating
safety.
Only an authorised company may assemble the air conditioning unit.
ATTENTION
Only authorised companies with the appropriate technical resources and suitably trained personnel may
install the air conditioning unit.
CAUTION
The specialists responsible for installing the air conditioning unit must make sure they have all of the
information and knowledge required to correctly install, test and deliver the unit. Johnson Controls Inc.
shall not be considered responsible for any damage caused by installation of the unit that is no consistent
with that described in this document or others specifically provided with the unit.
During regular equipment installation, the fitter must pay special attention to certain situations in order
to prevent injuries or damage to the unit.
Situations that could jeopardise the safety of the fitter or that of others nearby or that could put the unit
itself at risk are clearly indicated in this manual.
A series of special symbols are used to clearly identify these situations.
Pay careful attention to these symbols and to the messages following them, as your safety and the safety
of others depends on it.
1.2 Icons used in this document
DANGER
•The text following this symbol contains information and instructions relating directly to your safety
and physical wellbeing.
•Not taking these instructions into account could lead to serious, very serious or even fatal injuries to
you and others in the proximities of the unit.
Information can also be found on safe procedures during unit handling. This will help reduce the risk of
accidents.
CAUTION
•The text following this symbol contains information and instructions relating directly to your safety
and physical wellbeing.
•Not taking these instructions into account could lead to minor injuries to you and others in the
proximities of the unit.
•Not taking these instructions into account could lead to unit damage.
Information can also be found on safe procedures during unit handling. This will help reduce the risk of
accidents.
NOTE
•The text following this symbol contains information or instructions that may be of use or that is worthy
of a more thorough explanation.
•Instructions regarding inspections to be made on unit parts or systems may also be included.
1Installation manual
1.1 Safety instructions
2

1.3 Instructions for storage, transport, loading and unloading of
the unit
CAUTION
Outdoor units must be moved and stored vertically to prevent oil from leaking from the compressor.
Delivery inspection
The unit should be carefully inspected for visible damage or abnormalities as soon as it is received.
Any abnormalities or damage to the unit should be communicated to both the transportation and
insurance company in writing.
Storage instructions
The unit should be stored in a place suitable to the purpose (warehouse or similar), protected from the
weather, water, humidity and dust.
Cover the unit with a canvas of a suitable size.
The unit should be appropriately protected from knocks and dust, ensuring the protective parts it was
supplied with remain in place. Where these are not in place, establish the necessary protections and/or
barriers to keep vehicles or fork-lift trucks away.
Transport, loading and unloading of the unit
The units should only be handled by personnel from the company responsible for their installation.
Transport of the unit should be in such a manner that no damage is caused by faulty or inadequate
mooring to the bed or body of the vehicle.
Where necessary, protect all of the edges of the unit against knocks and scratches and moor it to the
bed or body of the vehicle using suitable textile belts or slings to keep it perfectly still.
Loading and unloading the unit from a truck or trailer should be on flat, solid ground using an appropriate
crane with sufficient capacity.
1.3.1 Inspection
Upon reception, inspect the goods and notify the carrier and the insurance company, in writing, of any
possible damage during transportation.
1.3.2 Disposal of packaging
The packaging is recyclable. Dispose of it in the appropriate place or take it to an appropriate collection
centre. Respect the regulations in force for this type of waste in the country where the unit is being
installed.
Packaging remains must be correctly disposed of. Improper disposal of packaging generates
environmental problems that affect human life.
1.3.3 Disposal of the unit
When removing the unit, the components must be ecologically recovered. The cooling circuit is full of
coolant that must be extracted and delivered to the gas manufacturer for recycling.
ATTENTION
The refrigerant gas contains greenhouse-effect fluorinated gas covered by the Kyoto protocol.
Please see the specifications plate for type of gas and quantity per system.
GWP (Global Warming Potential): 2088
There will be oil left in the hermetic compressor, therefore it must be delivered with the circuit sealed.
Installation manual 1
Instructions for storage, transport, loading and unloading of the unit 1.3
3

The air conditioner shall be deposited in the area established by local authorities, to facilitate its selective
recovery.
1.3.4 Handling
The unit must be moved using the metal rails provided for its installation and transport.
1.4 Technical data
1.4.1 Test conditions and correction factors
Test conditions
Voltage
Length of connec‐
tion
pipes
[m]
Summer Winter
Out. temp. °C Ind. temp. °C Out. temp. °C Ind. temp. °C
DB TH DB TH DB TH DB TH
400 7,5 35 24 27 19 7 6 20 12
Correction factors for cooling capacities
Cooling capacity correction factors for different air flows to the nominal flows in the indoor coil
% Flow 80 90 100 110 120 130
Total capacity 0,96 0,98 1 1,016 1,032 1,046
Sensible capacity 0,945 0,973 1 1,038 1,075 1,118
Comp. absorbed power 0,98 0,99 1 1,009 1,017 1,025
Cooling capacity correction factors according to length and height between units
HVertical distance between the indoor unit and
the outdoor unit
LE
Equivalent length of pipes between the indoor
unit and the outdoor unit
(consider a single line)
A Outdoor unit above indoor unit
B Indoor unit above outdoor unit
1 Indoor unit
2 Outdoor unit
AB1
2
1
2
A
B
1 Installation manual
1.4 Technical data
4

Correction of the actual air inlet temperature on the outdoor coil for different air flows to the nominal flow
% Flow 70 80 90 100 110 120 130
Correction in °C of the actual air inlet temper‐
ature on the outdoor coil 5 3 1,5 0 -1 -2 -2,5
Correction factors for heating capacities
Indoor unit supply air
DB temperature °C
Indoor unit air DB temperature °C
14 10 6 0 -8
23 1,2 1,04 0,96 0,77 0,58
20 1,25 1,1 1 0,8 0,69
17 1,3 1,13 1,04 0,83 0,63
Heating capacity correction factors according to length and height between units
HVertical distance between the indoor unit and
the outdoor unit
LEEquivalent length of pipes between the indoor
unit and the outdoor unit
(consider a single line)
A Outdoor unit above indoor unit
B Indoor unit above outdoor unit
1 Indoor unit
2 Outdoor unit
Correction of the actual air inlet temperature on the outdoor coil for different air flows to the nominal flow
% Flow 70 80 90 100 110 120 130
Correction in °C of the actual air inlet
temperature on the outdoor coil -2 -1,5 -0,5 0 0,5 1 1,2
A
B
AB1
2
1
2
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Technical data 1.4
5

1.4.2 Limits of use
Model 20A 25A 30A 40A 45A 60A 75A 90A
Voltage limits Min./Max V 360/440
VCH/
VIR
Sum‐
mer
cycle
Temperature of
air input in in‐
door
coil
WB °C
Min./Max. 15/23 15/23 15/23 14/23 14/23 14/23 14/23 14/23
DB °C
Min./Max. 20/32 20/32 20/32 20/32 20/32 20/32 20/32 20/32
Outdoor tem‐
perature (1), (2)
DB °C
Min./Max. 10/50 10/50 10/48 10/50 10/50 10/50 10/50 10/50
Winter
cycle
Temperature of
air input in in‐
door
coil (3)
DB °C
Min./Max. 10/27 10/27 10/27 10/27 10/27 10/27 10/27 10/27
Outdoor tem‐
perature (4)
DB °C
Min./Max. -20/20 -20/20 -20/20 -20/20 -20/20 -20/20 -20/20 -20/20
DB: dry bulb.
WB: wet bulb.
(1): with the condensation control option, the limit is ‑10 °C.
(2): with rated indoor and outdoor air flows.
(3): the unit is able to run for a short period at temperatures below 10 °C to raise the temperature of the air in the air conditioned
room to 10 °C.
(4): at below ‑10 °C only the emergency heating resistor or hot water coil (optional) remains connected.
1Installation manual
1.4 Technical data
6

1.4.3 Technical and physical data
Outdoor Units (VCH 20A to 40A)
Models VCH 20A 25A 30A 40A
Compressors
Quantity 1 1 1 1
Standard rating kW 4,9 6,4 7,9 10,5
Degree of protection IP 21
Electric power supply 400 / 3 / 50
Outdoor fan
Standard rating kW 1,5 1,5 3 3
Electric power supply V / ph / Hz 400 / 3 / 50
Degree of protection IP 55
Motor speed rpm 1400
Impeller diameter (x2) mm 270 270 320 320
Impeller width (x2) mm 270 270 320 320
Motor pulley
Original type / diameter SPZ /100 SPZ /90
No. of channels / shaft diameter (no. of
pulleys) 2 / 24 2 / 28
Fan pulley
Original type / diameter SPZ /150 SPZ /140
No. of channels / shaft diameter (no. of
pulleys) 2 / 20 2 / 25
Belts Type SPZ
Dimensions 1010 (x2) 1075 (x2)
Outdoor coil
Number of elements No. 1 1 1 1
Pipes (depth x height) 5 x 37 5 x 37 5 x 40 5 x 40
Pipe diameters inches 3/8 "
Area m21,01 1,01 1,47 1,47
Dimensions with
packaging
Height mm 1413 1413 1546 1546
Width mm 1460 1460 1838 1838
Length mm 890 890 880 880
Approximate weight Net kg 285 310 355 375
Gross kg 290 314 360 614
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Technical data 1.4
7

Outdoor Units (VCH 45A to 90A)
Models VCH 45A 60A 75A 90A
Compressors
Quantity 2 2 2 2
Standard rating kW 2 x 6 2 x 8,1 2 x 10,7 2 x 13,4
Degree of protection IP 21
Electric power supply 400 / 3 / 50
Outdoor fan
Standard rating kW 2 x 2,2 2 x 2,2 2 x 4 2 x 4
Electric power supply V / ph / Hz 400 / 3/ 50
Degree of protection IP 55
Motor speed rpm 1400
Impeller diameter (x2) mm 380 380 380 380
Impeller width (x2) mm 380 380 380 380
Motor pulley
Original type / diameter SPZ /100 SPZ /90
No. of channels / shaft diameter (no. of
pulleys) 2 / 24 (x2) 2 / 28 (x2)
Fan pulley
Original type / diameter SPZ /200 SPZ /170 SPZ /140
No. of channels / shaft diameter (no. of
pulleys) 2 / 25 (x2) 2 / 25 (x2)
Belts Type SPZ
Dimensions 1262 (x2) 1200 (x2) 1137 (x2)
Outdoor coil
Number of elements No. 2 2 2 2
Pipes (depth x height) 5 x 42 5 x 42 5 x 48 5 x 48
Pipe diameters inches 3/8 "
Area m22 x 1,02 2 x 1,02 2 x 1,44 2 x 1,44
Dimensions with
packaging
Height mm 1660 1660 1814 1814
Width mm 2340 2340 2760 2760
Length mm 880 880 1000 1000
Approximate weight Net kg 578 589 710 715
Gross kg 582 593 715 720
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1.4 Technical data
8

Indoor Units
Models VIR 25A 40A 45A 60A 75A 90A
Indoor
fan
Rated
power kW 0,75 1,5 1,5 2,2 3 4
Electric power
supply V / ph / Hz 400 / 3 / 50
Protection
rating IP 55
Motor speed rpm 1400
Turbine diame‐
ters mm 320 320 x 2 320 x 2 320 x 2 380 x 2 380 x 2
Turbine width mm 320 240 x 2 320 x 2 320 x 2 380 x 2 380 x 2
Indoor
coil
Number of
elements No. 1 1 1 1 1 1
Pipes (depth x height) 4x21 4x25 4x29 4x29 5x32 5x32
Pipe diameters inches 3/8 "
Area m20,57 0,84 1,40 1,40 1,76 1,76
EU3 air
filters
Quantity No. 3
Dimensions 365 x 543 x
24
447 x 616 x
24 640 x 715 x 24 547 x 789 x 24
Dimensions
with packag‐
ing
Height mm 760 825 925 925 1000 1000
Width mm 1470 1850 2350 2350 2760 2760
Depth mm 1020 1020 1020 1020 1120 1120
Weight Net kg 128 173 223 223 310 312
Gross kg 152 198 250 250 340 342
1.4.4 Electrical specifications
Outdoor Units
Model Compressor
Power supply [V / ph (Hz)] Rated current [A] Start-up current [A]
VCH 20A 400/3 (50) 8,5 74
VCH 25A 400/3 (50) 11,8 95
VCH 30A 400/3 (50) 15 118
VCH 40A 400/3 (50) 19,3 140
VCH 45A 400/3 (50) 2 x 12 95
VCH 60A 400/3 (50) 2 x 15 118
VCH 75A 400/3 (50) 2 x 19 140
VCH 90A 400/3 (50) 2 x 25 198
Model
Outdoor-indoor fan Outdoor fan motor Indoor fan motor
Power supply (3)
[V / ph (Hz)] kW Rated current [A] kW Rated current [A]
VCH 20A 400/3 (50) 1,5 2,5 0,75 1,8
VCH 25A 400/3 (50) 1,5 2,5 0,75 1,8
VCH 30A 400/3 (50) 3 4,9 1,5 2,7
VCH 40A 400/3 (50) 3 4,9 1,5 2,7
VCH 45A 400/3 (50) 2 x 2,2 2 x 3.4 1,5 3,1
VCH 60A 400/3 (50) 2 x 2,2 2 x 4.4 2,2 4,6
VCH 75A 400/3 (50) 2 x 4 2 x 7.9 3 4,7
VCH 90A 400/3 (50) 2 x 4 2 x 7.9 4 7
Installation manual 1
Technical data 1.4
9

Model
Total
rated power
[kW]
Total
rated current
[kW]
Total
maximum power
[kW]
Total
maximum current
(kW)
Circuit
breaker
(K Curve)(1) [A]
Power cable cross-
section
(2) [mm2]
VCH 20A 6,7 13 9 17 20 4
VCH 25A 8,3 16 11 20 25 4
VCH 30A 12 22 17 29 32 6
VCH 40A 14 27 19 33 40 10
VCH 45A 17 33 24 44 50 10
VCH 60A 23 43 31 55 63 16
VCH 75A 32 59 39 76 80 25
VCH 90A 39 72 49 86 100 35
(1) K Curve (DIN, VDE 0660-104).
(2) Based on copper conductors.
(3) Main power supply: 400/3 + N (50)
NOTE
The size of the circuit breaker and the cross-section of the power lines are illustrative and must be
corrected based on site conditions, length between units and current regulations.
Indoor Units
Model Power supply
[V / ph (Hz)]
Rated power
[kW]
Rated current
[A]
Start-up current
[A]
Power cable
cross-section
[mm2]
VIR 25A 400/3 (50) 0,75 1,8 8 4 x 1.5
VIR 40A 400/3 (50) 1,5 2,7 17 4 x 1.5
VIR 45A 400/3 (50) 1,5 3,1 17 4 x 1.5
VIR 60A 400/3 (50) 2,2 4,6 22 4 x 1.5
VIR 75A 400/3 (50) 3 4,7 36 4 x 1.5
VIR 90A 400/3 (50) 4 7 42 4 x 2.5
(1) K Curve (DIN, VDE 0660-104).
(2) Based on copper conductors.
NOTE
The size of the circuit breaker and the cross-section of the power lines are illustrative and must be
corrected based on site conditions, length between units and current regulations.
1.4.5 Rated features
Rated features
Outdoor unit Indoor unit Summer
Model Air flow
[m3/h] Model Air flow [m3/h]
Cooling
power
[W]
Consumption
[W] E.E.R
VCH 20A 6235 VIR 25A 4590 16800 5900 2,85
VCH 25A 6235 VIR 25A 4590 20600 7480 2,75
VCH 30A 11975 VIR 40A 7500 28700 10250 2,80
VCH 40A 11975 VIR 40A 7500 32400 12810 2,53
VCH 45A 17250 VIR 45A 9000 43500 14810 2,94
VCH 60A 20340 VIR 60A 10500 54100 20860 2,60
VCH75A 25200 VIR 75A 13700 76100 29210 2,61
VCH 90A 25200 VIR 90A 16000 87300 34920 2,50
1 Installation manual
1.4 Technical data
10

Outdoor unit Indoor unit Winter
Model Air flow
[m3/h] Model Air flow [m3/h]
Heating
power
[W]
Consumption
[W] C.O.P.
VCH 20A 6235 VIR 25A 4590 21500 5680 3,79
VCH 25A 6235 VIR 25A 4590 23200 6840 3,39
VCH 30A 11975 VIR 40A 7500 32300 9950 3,25
VCH 40A 11975 VIR 40A 7500 39300 12870 3,05
VCH 45A 17250 VIR 45A 9000 47400 13750 3,45
VCH 60A 20340 VIR 60A 10500 53000 20000 2,80
VCH75A 25200 VIR 75A 13700 77700 27560 2,82
VCH 90A 25200 VIR 90A 16000 89900 33190 2,71
1.4.6 Options and accessories
Options and accessories for indoor units
NOTE
Electric resistors and hot water coils cannot be installed at the same time in the same unit.
VIR indoor unit accessories Model
25A 40A 45A 60A 75A 90A
Indoor electric resistor 10 kW O
Indoor electric resistor 15 kW O
Indoor electric resistor 10 kW O
Indoor electric resistor 20 kW O
Indoor electric resistor 15 kW O O
Indoor electric resistor 30 kW O O
Indoor electric resistor 30 kW O O
Indoor electric resistor 40 kW O O
50 m connection cable A A A A A A
Hot water coil (20 m) O
Hot water coil (20 m) O
Hot water coil (20 m) O O
Hot water coil (20 m) O O
Vertical transformation kit for model A
Vertical transformation kit for model A
Vertical transformation kit for model A A
Vertical transformation kit for model A A
H.S.D / H.S.D.M O O O O O O
Economiser (20 m) A A A A A A
50 m communication cable (economiser or
water coil)(1) A A A A A A
Soft fan starter O O O O
(A): accessory. Supplied separately.
(O): optional. Factory-fitted.
(1) Where the indoor units is fitted with an economiser and hot water coil, only 50 m of cable is required.
Installation manual 1
Technical data 1.4
11

Weights of the options and accessories for indoor units
NOTE
Electric resistors and hot water coils cannot be installed at the same time in the same unit.
VIR Models 25A 40A 45A/60A 75A/90A
Economiser kg 54 69 78 90
Electric resistor kg 15 18 20 29
Hot water coil kg 16 20 37 43
Extra weight for Cu / Cu coil kg 14 19 38 56
Options and accessories for outdoor units
Accessories for VCH outdoor units Model
20A 25A 30A 40A 45A 60A 75A 90A
Vertical transformation kit A A A A O/A O/A O/A O/A
LAK condensation control ‑ 1(1) O O O O
LAK condensation control ‑ 2(1) O O O O
Tray resistor ‑ 1 O/A O/A O/A O/A
Tray resistor ‑ 2 O/A O/A O/A O/A
Soft compressor starter O O O O O O
(A): accessory. Supplied separately.
(O): optional. Factory-fitted.
(1) No protection against outdoor indications.
Weights of the options and accessories for outdoor units
Models VCH
20A/25A 30A/40A 45A/60A 75A/90A
Condensation control kg 16 18 22 28
Extra weight for Cu / Cu coil kg 31 47 75 109
1.4.7 VIR units with auxiliary resistor
Model Electric power
supply Power Consumption Stages Circuit breaker Q1 (1)
Minimum
cable
cross-section
(2)
Front surface Pressure drop
(3)
VIR V / Ph / Hz kW A A mm2m2Pa
25A 400 / 3 / 50 10 15 1 20 2,5 0,53 2,9
25A 400 / 3 / 50 15 22 1 25 4 0,53 2,9
40A 400 / 3 / 50 10 15 1 20 2,5 0,74 4,9
40A 400 / 3 / 50 20 30 2 40 6 0,74 4,9
45A and 60A 400 / 3 / 50 15 22 1 25 4 0,98 7,1
45A and 60A 400 / 3 / 50 30 46 2 50 10 0,98 7,1
75A and 90A 400 / 3 / 50 30 46 2 50 10 0,16 7,1
75A and 90A 400 / 3 / 50 40 60 2 80 25 0,16 7,1
(1) K Curve (DIN, VDE 0660-104).
(2) Based on copper conductors.
(3) Considering the rated air flow of the indoor section.
1 Installation manual
1.4 Technical data
12

1.5 Indoor and outdoor unit combinations
Installation manual 1
Indoor and outdoor unit combinations 1.5
13

1.6 Measurements, clearances and accesses
1.6.1 Clearances
When installing each unit, clearances should be left for:
1. Intake and discharge of air from the outdoor unit.
2. Connection of drain and electricity pipes.
3. Air ducts.
4. Maintenance servicing.
5. Power supply connections.
To operate correctly, all minimum clearances shown on the general dimension diagrams should be
respected, with regard to the possible obstruction of air circulation or of the work of an operator.
Minimum technical clearance VCH
*
Return air without ducts (minimum clearance
600 mm)
Return air with ducts (no clearance required)
NOTE
Distances in millimetres
Minimum technical clearance VIR
AReturn air
NOTE
Distances in millimetres
A
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1.6 Measurements, clearances and accesses
14

1.6.2 General dimensions
General dimensions, VCH 20A and 25A
AA
A
B
1
2
3
4
A. Minimum clearance 600 mm
B. Minimum clearance 800 mm
1. Gas piping diameter 1 ⅛"
2. Liquid piping diameter 1/2"
3. Electrical connections
4. Drain pipe (outer diameter 28.5 mm)
NOTE
Measurements in mm
Installation manual 1
Measurements, clearances and accesses 1.6
15

General dimensions, VCH 30A and 40A
A
A
A
B
1
2
34
4
5
A. Minimum clearance 600 mm
B. Minimum clearance 800 mm
1. Gas piping diameter 1 ⅛"
2. Liquid piping diameter 5/8"
3. Electrical connections
4. Drain pipe (outer diameter 28.5 mm)
5. Anti-vibratory fixture (diameter 14 mm) (x4) 2 on each side of the unit
NOTE
Measurements in mm
1Installation manual
1.6 Measurements, clearances and accesses
16

General dimensions, VCH 45A and 60A
A. Minimum clearance 600 mm
B. Minimum clearance 800 mm
1. Gas piping diameter 1 ⅛" (x2)
2.
Liquid piping diameter
5/8" (60A) (x2)
1/2" (45A) (x2)
3. Electrical connections
4. Drain pipe (outer diameter 28.5 mm)
5. Anti-vibratory fixture (diameter 14 mm) (x4) 2 on each side of the unit
NOTE
Measurements in mm
Installation manual 1
Measurements, clearances and accesses 1.6
17