Viessmann VITOCAL 200-A Series Operating instructions

Installation and service instructions
for contractors
VIESMANN
Vitocal 200-A
Type AWO(-M)/AWO(-M)-E 201.A
Air source heat pump, monoblock version for heating mode
Type AWO(-M)-E-AC 201.A
Air source heat pump, monoblock version for heating and cooling operation
VITOCAL 200-A
6150148 GB 11/2019 Please keep safe.

2
Please follow these safety instruc-
tions closely to prevent accidents
and material losses.
Safety instructions explained
Danger
This symbol warns against the risk
of injury.
!Please note
This symbol warns against the risk
of material losses and environmen-
tal pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively inten-
ded for authorised contractors.
■Work on the refrigerant circuit may only
be carried out by authorised refrigera-
tion engineers.
■Work on electrical equipment must
only be carried out by a qualified elec-
trician.
■The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations to be observed
■National installation regulations
■Statutory regulations for the prevention
of accidents
■Statutory regulations for environmental
protection
■Codes of practice of the relevant trade
associations
■Relevant country-specific safety regu-
lations
Safety instructions
Safety instructions
6150148

3
Safety instructions for working on the system
Working on the system
■Isolate the system from the power sup-
ply, e.g. by removing the separate fuse
or by means of a mains isolator, and
check that it is no longer live.
Note
In addition to the control circuit there
may be several power circuits.
Danger
Contact with live components can
result in severe injuries. Some
components on PCBs remain live
even after the power supply has
been switched off.
Prior to removing covers from the
appliances, wait at least 4 minutes
until the voltage has completely
dropped out.
■Safeguard the system against recon-
nection.
■Wear suitable personal protective
equipment when carrying out any work.
Danger
Hot surfaces and fluids can lead to
burns or scalding.
■Before maintenance and service
work, switch OFF the appliance
and let it cool down.
■Never touch hot surfaces on the
appliance, fittings or pipework.
Danger
Risk of fire: Electrostatic discharge
can cause sparks which may be
ignited by escaping, flammable
refrigerant (R32).
Prior to commencing work, touch
earthed objects such as heating or
water pipes to discharge static
loads.
!Please note
Electronic assemblies can be dam-
aged by electrostatic discharge.
Prior to commencing work, touch
earthed objects such as heating or
water pipes to discharge static
loads.
Work on the refrigerant circuit
Refrigerants are air displacing, colour-
less, odourless gases.
■R32 forms flammable mixtures with air.
■R410A is not flammable.
Danger
Direct contact with liquid and gas-
eous refrigerant can cause serious
damage to health.
■Avoid direct contact with liquid and
gaseous refrigerant.
■Wear personal protective equip-
ment when handling liquid and
gaseous refrigerant.
Danger
Unregulated escape of refrigerant in
enclosed spaces can lead to
breathing difficulties and suffoca-
tion.
■Never breathe in refrigerant
vapours.
■Ensure adequate ventilation in
enclosed spaces.
Perform the following measures before
beginning work on the refrigerant circuit:
■Check the refrigerant circuit for leaks.
■Ensure very good ventilation especially
in the floor area and sustain this for the
duration of the work.
Safety instructions
Safety instructions (cont.)
6150148

4
■Inform all persons in the vicinity of the
system about the type of work to be
carried out.
■Secure the area surrounding the work
area.
Further measures before starting work
on the refrigerant circuit with flammable
refrigerants (R32):
■Remove all flammable materials and
ignition sources from the immediate
vicinity of the heat pump.
■Before, during and after the work,
check the surrounding area for escap-
ing refrigerant using a suitable refriger-
ant detector.
This refrigerant detector must not gen-
erate any sparks and must be suitably
sealed.
■A CO2 or powder extinguisher must be
to hand in the following cases:
–Refrigerant is being topped up.
–When soldering or welding work is
being carried out.
■Display signs prohibiting smoking.
Danger
Damage to the refrigerant circuit
can cause refrigerant to enter the
hydraulic system. This can cause
serious damage to health.
After completion of the work, pro-
fessionally vent the hydraulic sys-
tem on the primary and secondary
sides.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise the
safe operation of the system.
Replace faulty components only
with genuine Viessmann spare
parts.
Auxiliary components, spare and
wearing parts
!Please note
Spare and wearing parts that have
not been tested together with the
system can compromise its func-
tion. Installing non-authorised com-
ponents and making non-approved
modifications or conversions can
compromise safety and may invalid-
ate our warranty.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
Safety instructions for operating the system
What to do if water escapes from the
appliance
Danger
If water escapes from the appliance
there is a risk of electrocution.
Switch OFF the heating system at
the external isolator (e.g. fuse box,
domestic distribution board).
Danger
If water escapes from the appliance
there is a risk of scalding.
Never touch hot heating water.
Safety instructions
Safety instructions (cont.)
6150148

5
1. Information Disposal of packaging ............................................................................ 7
Symbols ................................................................................................. 7
Intended use .......................................................................................... 7
Product information ................................................................................ 8
■System examples ............................................................................... 9
■Spare parts lists .................................................................................. 9
2. Preparing for installation Requirements for on-site connections ................................................... 10
■Indoor unit ........................................................................................... 10
■Outdoor unit ........................................................................................ 11
3. Installation sequence Installing the outdoor unit ....................................................................... 13
■Transport ............................................................................................ 13
■Installation information ........................................................................ 13
■Installation location ............................................................................. 14
■Minimum clearances for 1 outdoor unit .............................................. 15
■Minimum clearances for heat pump cascades (max. 5 outdoor units) 16
■Floorstanding installation .................................................................... 17
■Wall mounting ..................................................................................... 23
■Opening the wiring chamber ............................................................... 25
■Removing the transport brackets ........................................................ 26
■Connecting the supplied hoses .......................................................... 27
Installing the indoor unit ......................................................................... 27
■Transport ............................................................................................ 27
■Requirements for the installation room ............................................... 28
■Minimum clearances ........................................................................... 28
■Fitting the indoor unit to the wall ......................................................... 28
Connecting the secondary circuit ........................................................... 30
Only type AWO(-M)-E-AC 201.A: Connecting the cooling circuit .......... 31
■Contact humidistat .............................................................................. 31
Electrical connection .............................................................................. 31
■Preparing the electrical connections ................................................... 31
■Indoor unit: Routing cables to the wiring chamber ............................. 33
■Connecting the Vitoconnect (accessories) ......................................... 34
■Indoor unit: Overview of connections ................................................. 36
■Indoor unit: Main PCB (230 V~ components) ..................................... 37
■Indoor unit: Expansion PCB on main PCB (230 V~ components) ...... 40
■Indoor unit: Luster terminals (signal and safety connections) ............ 43
■Indoor unit: Controller and sensor PCB (extra low voltage (ELV) con-
nections) ............................................................................................. 44
■Outdoor unit: Routing cables to the wiring chamber ........................... 47
■Outdoor unit: Overview of electrical connections ............................... 48
■Connecting the Modbus cable between the indoor and outdoor unit . 49
Power supply ......................................................................................... 50
■Heat pump control unit power supply 230 V~ ..................................... 51
■Instantaneous heating water heater power supply ............................. 51
■Outdoor unit: Power supply ................................................................ 53
■Power supply with power-OFF: Without on-site load disconnection ... 55
■Power supply with power-OFF: With on-site load disconnection ........ 55
■Connecting the power-OFF signal in heat pump cascades ................ 57
■Mains power supply in conjunction with on-site power consumption . 58
■Smart Grid .......................................................................................... 58
Closing the heat pump ........................................................................... 60
■Indoor unit: Fitting the front panel ....................................................... 60
■Outdoor unit: Fitting the side cover ..................................................... 60
4. Commissioning, inspec-
tion, maintenance
Steps - commissioning, inspection and maintenance ............................ 61
5. Maintenance Overview of electrical components ........................................................ 79
Index
Index
6150148

6
Indoor unit: Opening the programming unit ........................................... 79
Indoor unit: Placing the control unit panel in its service position ........... 80
Indoor unit: Overview of internal components ....................................... 81
Outdoor unit: Overview of internal components ..................................... 82
■Outdoor unit with 1 fan ....................................................................... 83
■Outdoor unit with 2 fans ...................................................................... 84
Draining secondary side heat pump ...................................................... 85
Checking the temperature sensors ........................................................ 85
■Connection to the indoor unit .............................................................. 85
■Connection to the outdoor unit ........................................................... 85
■Indoor unit: Viessmann NTC 10 kΩ (blue marking) ............................ 86
■Indoor unit: Viessmann NTC 20 kΩ (orange marking) ........................ 87
■Indoor unit: Viessmann Pt500A (green marking) ................................ 88
■Outdoor unit: Viessmann NTC 10 kΩ (no marking) ............................ 89
Checking the fuses ................................................................................ 89
6. Commissioning/service
reports
Hydraulic parameter report .................................................................... 91
Control parameter report ....................................................................... 91
7. Specification ................................................................................................................103
8. Appendix Commissioning order ............................................................................. 110
Final decommissioning and disposal ..................................................... 110
9. Certificates Declaration of conformity ....................................................................... 111
10. Keyword index ................................................................................................................ 112
Index
Index (cont.)
6150148

7
Please dispose of packaging waste in line with statu-
tory regulations.
Symbols
Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■Component must audibly click into place.
or
■Acoustic signal
■Fit new component.
or
■In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
The steps in connection with commissioning, inspec-
tion and maintenance are found in the "Commission-
ing, inspection and maintenance" section and identified
as follows:
Symbol Meaning
Steps required during commissioning
Not required during commissioning
Steps required during inspection
Not required during inspection
Steps required during maintenance
Not required during maintenance
Intended use
The appliance is only intended to be installed and
operated in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions.
Depending on the version, the appliance can only be
used for the following purposes:
■Central heating
■Central cooling
■DHW heating
The range of functions can be extended with additional
components and accessories.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than central heating/cooling or DHW heating shall be
deemed inappropriate.
Information
Disposal of packaging
6150148
Information

8
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the heating
system are modified from their intended function.
Note
The appliance is intended exclusively for domestic or
semi-domestic use, i.e. even users who have not had
any instruction are able to operate the appliance
safely.
Product information
Layout
Vitocal 200-A is a monoblock air/water heat pump,
comprising 1 indoor unit and 1 outdoor unit.
Refrigerant circuit
All components of the refrigerant circuit are located in
the outdoor unit, including the refrigerant circuit con-
troller with electronic expansion valve. Subject to oper-
ating conditions, compressor output is matched via
inverter control.
For central cooling, the refrigerant circuit is reversed
(only types with designation "-AC").
Hydraulics
The indoor and outdoor units are connected to each
other hydraulically on the secondary side.
The hydraulic components for the secondary circuit are
located in the indoor unit. The heated heating water is
pumped into the secondary circuit by the integral high
efficiency circulation pump (secondary pump). The
integral 3-way diverter valve for "central heating/DHW
heating" changes over between central heating and
DHW heating.
System without buffer cylinder
■Room heating
The heat pump heats 1 heating/cooling circuit with-
out mixer.
■Room cooling
The heat pump cools through 1 heating/cooling cir-
cuit without mixer or through 1 separate cooling cir-
cuit.
System with heating water buffer cylinder
■Central heating
The heat pump heats up to 3 heating/cooling circuits:
1 heating/cooling circuit without mixer and 2 heating/
cooling circuits with mixer
■Central cooling
The heat pump can only cool either through one of
the max. 3 heating/cooling circuits or through a sepa-
rate cooling circuit.
The heating water buffer cylinder is bypassed
hydraulically by a bypass circuit.
System with heating water/coolant buffer cylinder
■Central heating
The heat pump can heat up to 3 heating/cooling cir-
cuits: 1 heating/cooling circuit without mixer and
2 heating/cooling circuits with mixer
■Central cooling
The heat pump can cool through up to 3 heating/
cooling circuits. Central cooling via a separate cool-
ing circuit is not possible.
Heat pump control unit
The entire heating system is monitored and controlled
by heat pump control unit Vitotronic 200, type WO1C.
The heat pump control unit is integrated into the indoor
unit. The indoor and outdoor units communicate via
Modbus.
Type overview
Note
DE: Type AWO-E/AWO-M-E 201.A is not available.
Type Instantaneous
heating water heat-
er
Room cooling Rated voltage
Indoor unit Outdoor unit
AWO 201.A — — 230 V~ 400 V~
AWO-M 201.A — — 230 V~ 230 V~
AWO-E 201.A X —230 V~ 400 V~
AWO-M-E 201.A X —230 V~ 230 V~
AWO-E-AC 201.A X X 230 V~ 400 V~
AWO-M-E-AC 201.A X X 230 V~ 230 V~
Information
Intended use (cont.)
6150148
Information

9
System examples
Available system examples: See www.viessmann-
schemes.com.
Spare parts lists
Information about spare parts can be found at
www.viessmann.com/etapp or in the Viessmann
spare part app.
Information
Product information (cont.)
6150148
Information

10
Indoor unit
880
66
370
1105 150
960
358
450
80
152
224
299
374
68
FG
EDCBA
Fig. 1
AOutdoor unit return (heating water outlet): G 1¼
(union nut DN 32, female thread)
BOutdoor unit flow (heating water inlet): G 1¼
(union nut DN 32, female thread)
CDHW cylinder flow (on the heating water side)
G 1¼ (union nut DN 32, female thread)
DHeating water return and DHW cylinder return:
G 1¼ (union nut DN 32, female thread)
EHeating water flow G 1¼ (union nut DN 32, female
thread)
FCable entry for extra low voltage (ELV) leads
< 42 V
GCable entry for power cables 400 V~/230 V~,
> 42 V
Preparing for installation
Requirements for on-site connections
6150148
Installation

11
Outdoor unit
Outdoor unit with 1 fan
1109
126
508
536
545
62
705
753
544
110
165
590
637
133
176
223
48
518
A
D
C
B
A
B
C D
/
Fig. 2
AOutdoor unit flow (heating water outlet) G 1¼
(union nut supplied, female thread)
BOutdoor unit return (heating water outlet) G 1¼
(union nut supplied, female thread)
CPower cable inlet
DModbus cable inlet for indoor/outdoor unit
Preparing for installation
Requirements for on-site connections (cont.)
6150148
Installation

12
Outdoor unit with 2 fans
1109
705
62
110
165
508
544
536
545
1377
126
133
176
223
590
637
48
518
A
D
C
B
A
B
C D
/
Fig. 3
AOutdoor unit flow (heating water outlet) G 1¼
(union nut supplied, female thread)
BOutdoor unit return (heating water outlet) G 1¼
(union nut supplied, female thread)
CPower cable inlet
DModbus cable inlet for indoor/outdoor unit
Preparing for installation
Requirements for on-site connections (cont.)
6150148
Installation

13
Transport
!Please note
Impacts, compression and tensile loads can
cause damage to the outside panels of the
appliance.
Never apply loads/weight to the top, front or
side panels of the appliance.
!Please note
If the compressor in the outdoor unit is tilted too
far, lubricant will enter the refrigerant circuit and
damage the appliance.
Max. tilting angle: 45° for approx. 4 min, other-
wise 30°
Installation information
Types of installation:
■Floorstanding installation with line entry above
ground level
■Floorstanding installation with line entry below
ground level
■Wall mounting
Floorstanding installation:
■Use supports for floorstanding installation (accesso-
ries).
Use ground anchors with a tensile force of at least
2.5 kN to secure the support.
■Where such supports cannot be used, install the out-
door unit freestanding on a solid base (provided on
site) with a height of at least 100 mm.
■In difficult climatic circumstances (temperatures
below zero, snow, humidity), we recommend instal-
ling the appliance on a plinth of approx. 300 mm
height.
■Take account of the weight of the outdoor unit: See
"Specification".
Wall mounting:
■Use the wall mounting bracket set (accessories).
■The wall must meet the structural requirements.
Use suitable fixing materials, depending on the wall
structure.
Siting:
■Never install with the discharge side facing the main
wind direction.
■Do not mount the outdoor unit above cellar shafts or
floor troughs.
■Provide wall outlets and protective conduits for the
hydraulic connection lines and electrical connecting
cables without moulded parts or changes of direc-
tion.
Weather influences:
■Observe wind loads when installing the unit on sites
exposed to the wind.
Where outdoor units are installed on a flat roof, con-
siderable wind loads may occur, depending on the
relevant wind load zone and height of the building.
For such installation situations we recommend hav-
ing the substructure sized by a design engineer in
accordance with DIN 1991-1-4.
■Provide thermal insulation of sufficient thickness on
the pipework to the outdoor air: See following table.
Pipework inter-
nal 7
Min. thickness of thermal insu-
lation layer with
λ = 0.035 W/(m·K)
≤ 22 mm 40 mm
> 22 mm 60 mm
λThermal conductivity
■Incorporate the outdoor unit into the lightning protec-
tion system.
■Consider the heat absorbed (heating mode) and heat
emitted (cooling mode) by the appliance when
designing weatherproofing measures or an enclo-
sure.
Condensate:
■Ensure that condensate can drain freely.
Create a permanent gravel bed under the outdoor
unit as a soakaway.
■In regions where the outside temperature regularly
falls below 0 °C we recommend fitting an electric rib-
bon heater (accessories) for the condensate pan of
the outdoor unit.
Structure-borne noise insulation and vibration iso-
lation between the building and outdoor unit:
■Route cables/leads between the indoor and outdoor
units free of stress.
■Installation only on walls with a high weight per unit
area (> 250 kg/m2); in other words not on lightweight
walls, roof structures, etc.
■Vibration isolation components are included in the
standard delivery of the wall mounting brackets.
For floorstanding installation, only use the rubber
mounts supplied.
Do not use additional anti-vibration mounts, springs,
rubber mounts, etc.
Installation sequence
Installing the outdoor unit
6150148
Installation

14
Weight of outdoor units
Heat pumps with outdoor unit 230 V
Types Weight in kg
201.A04 102
201.A06 102
201.A08 103
201.A10 145
201.A13 145
201.A16 145
Heat pumps with outdoor unit 400 V
Types Weight in kg
201.A10 153
201.A13 153
201.A16 153
Installation location
■Select a site with good air circulation, so that the
cooled air can dissipate and be replaced by warm
air.
■Never install in the corners of rooms, in recesses or
between walls. This could result in an "air short cir-
cuit" between the air being discharged and the air
being drawn in.
!Please note
An "air short circuit" during heating mode will
result in the cooled, discharged air re-entering
the unit. This can result in reduced heat pump
efficiency and defrosting problems.
Avoid "air short circuits".
!Please note
An "air short circuit" during cooling mode will
result in the heated, discharged air re-entering
the unit. This can lead to high pressure faults.
Avoid "air short circuits".
■If siting the appliance in a location that is exposed to
wind, ensure that the wind cannot influence the fan
area. Strong wind can have a negative influence on
the air flow through the evaporator.
■Select an installation location where the evaporator
cannot be blocked by leaves, snow, etc.
■Select the installation location giving due considera-
tion to the physical laws concerning the propagation
and reflection of sound.
Technical guide
■Never install next to or below bedroom windows.
■Maintain a clearance of at least 3 m to pathways,
downpipes or sealed surfaces. The cooled air in the
discharge area creates a risk of ice forming when
outside temperatures are below 10 °C.
■The installation location must be easily accessible,
for example for maintenance work: See "minimum
clearances".
Installation sequence
Installing the outdoor unit (cont.)
6150148
Installation

15
Minimum clearances for 1 outdoor unit
Outdoor unit with 1 fan
BA
1000 a
A
B
a
100 300
1000
200
Fig. 4
AAir intake
BAir discharge
a■Line entry above ground level:
≥ 200 mm
■Line entry below ground level:
≥ 900 mm
Installation sequence
Installing the outdoor unit (cont.)
6150148
Installation

16
Outdoor unit with 2 fans
BA
1000 a
A
B
a
100 300
1000
200
Fig. 5
AAir intake
BAir discharge
a■Line entry above ground level:
≥ 200 mm
■Line entry below ground level:
≥ 900 mm
Minimum clearances for heat pump cascades (max. 5 outdoor units)
Facing layout without partition wall
> 500
B
> 1500
A
B
A
> 500 > 500
> 500
A
B
A
B
> 500 > 500
Fig. 6
AAir intake
BAir discharge
Facing layout with partition wall
> 500
B
400 A
B
A
> 500 > 500
400
> 500
A
B
A
B
> 500 > 500
C
Fig. 7
AAir intake
BAir discharge
Installation sequence
Installing the outdoor unit (cont.)
6150148
Installation

17
Single row layout
> 500
A
400
B
A
B
A
B
> 500 > 500 > 500
A
B
> 500
A
B
> 500
Fig. 8
AAir intake
BAir discharge
Floorstanding installation
Foundations
Fit the floor supports on 2 horizontal foundation strips.
We recommend the construction of concrete founda-
tions in accordance with the following diagram. The
stated thickness of the layers represents an average
value. These values should be adjusted to suit the
local conditions. Follow the standard rules of building
engineering.
Installation sequence
Installing the outdoor unit (cont.)
6150148
Installation

18
For support for floorstanding installation
C
702
66 66
50 50
150150
D
B
B
709
60
155
E
D
300
1100
D
1200
C
A
B
B
E
Fig. 9
AFrost protection for foundations (compacted
crushed stone, e.g. 0 to 32/56 mm); thickness of
layer subject to local requirements and building
regulations
BFoundation strip
CGravel bed as condensate soakaway
DFixing points for support
Use ground anchors with a tensile force of at least
2.5 kN.
EOnly for line entry below ground level: Hydraulic
connection set (accessories)
Installation sequence
Installing the outdoor unit (cont.)
6150148
Installation

19
For design casing with support
C
410
70 70
70 70
150
150
D
B
B
709
60
210
E
D
300
800
D
1200
C
A
B
B
E
Fig. 10
AFrost protection for foundations (compacted
crushed stone, e.g. 0 to 32/56 mm); thickness of
layer subject to local requirements and building
regulations
BFoundation strip
CGravel bed as condensate soakaway
DFixing points for support
Use ground anchors with a tensile force of at least
2.5 kN.
EOnly for line entry below ground level: Hydraulic
connection set (accessories)
Installation sequence
Installing the outdoor unit (cont.)
6150148
Installation

20
Floorstanding installation with support: Line entry
above ground level
3000
A
200
300
K
702
835
EF
1100
C D
200
L
BG
H
500 180
Fig. 11
AGround
BPathway, patio
CHydraulic connection lines, indoor/outdoor unit
DIndoor/outdoor unit Modbus cable and outdoor unit
power cable:
Route the cables so they are not stressed.
EOpenings in the base plate for free drainage of
condensate:
Never seal the openings.
FConnection set, wall mounting (accessories)
GSupport for floorstanding installation (accessories)
HFoundation strip
KFrost protection for foundations (compacted
crushed stone, e.g. 0 to 32/56 mm); thickness of
layer subject to local requirements and building
regulations
LFlexible separating layer between the foundations
and the building
Note
Provide thermal insulation of sufficient thickness on the
pipework to the outdoor air: See table on page 13.
Floorstanding installation with support and design
casing: Line entry above ground level
3000
200
200
H
340
A
B
300
550
800
410
K
L
E
M
300
180
F
CD
G
Fig. 12
AGround
BPathway, patio
CHydraulic connection lines, indoor/outdoor unit
DIndoor/outdoor unit Modbus cable and outdoor unit
power cable:
Route the cables free of stress.
EOpenings in the base plate for free drainage of
condensate:
Never seal the openings.
FConnection set, wall mounting (accessories)
GDesign casing wall connection (accessories)
HDesign casing with support (accessories)
KFoundation strip
LFrost protection for foundations (compacted
crushed stone, e.g. 0 to 32/56 mm); thickness of
layer subject to local requirements and building
regulations
MFlexible separating layer between the foundations
and the building
Note
Provide thermal insulation of sufficient thickness on the
pipework to the outdoor air: See table on page 13.
Installation sequence
Installing the outdoor unit (cont.)
6150148
Installation