Viessmann Vitocal 200-s Operating instructions

Installation and service instructions

for contractors

VIESMANN

Vitocal 200-S

Type AWB 201.B04 to B13, 201.C10 to C16

Type AWB-E 201.B04 to B13, 201.C10 to C16

Air/water heat pump, split version for heating operation

Type AWB-AC 201.B04 to B13, 201.C10 to C16

Air/water heat pump, split version for heating and cooling operation

For applicability, see the last page

VITOCAL 200-S

5775 777 GB 1/2017 Please keep safe.

Please follow these safety instructions 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 environmental pollution.

Note

Details identified by the word "Note" contain additional

information.

Target group

These instructions are exclusively intended for author-

ised contractors.

■Work on the refrigerant circuit may only be carried

out by authorised refrigeration engineers.

■Work on electrical equipment must only be carried

out by a qualified electrician.

■The system must be commissioned by the system

installer or a qualified person authorised by the

installer.

Regulations to be observed

■National installation regulations

■Statutory regulations for the prevention of accidents

■Statutory regulations for the protection of the envi-

ronment

■Codes of Practice of the relevant trade associations

■All relevant safety regulations as defined by DIN, EN,

DVGW, VDE and locally applicable standards

aÖNORM, EN and ÖVE

cSEV, SUVA, SVTI, SWKI and SVGW

Working on the system

■Isolate the system from the power supply (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

load 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.

Wait at least 4 minutes before removing equip-

ment covers, to allow the voltage to dissipate.

■Safeguard the system against reconnection.

!Please note

Electronic assemblies can be damaged by elec-

trostatic discharge.

Prior to commencing work, touch earthed

objects such as heating or water pipes to dis-

charge static loads.

Repair work

!Please note

Repairing components that fulfil a safety func-

tion can compromise the safe operation of your

system.

Replace faulty components with genuine

Viessmann spare parts.

Safety instructions

5775 777 GB

Auxiliary components, spare and wearing parts

!Please note

Spare and wearing parts that have not been tes-

ted together with the system can compromise its

function. Installing non-authorised components

and making non-approved modifications or con-

versions can compromise safety and may inva-

lidate our warranty.

For replacement, use only spare parts supplied

or approved by Viessmann.

Safety instructions

Safety instructions (cont.)

5775 777 GB

1. Information Disposal of packaging ............................................................................ 6

Symbols ................................................................................................. 6

Intended use .......................................................................................... 6

Product information ................................................................................ 7

2. Preparing for installation Requirements for on-site connections ................................................... 8

■Recommended power cables ............................................................. 9

3. Installation sequence Installing the outdoor unit ....................................................................... 11

■Installation information ........................................................................ 11

■Installation site .................................................................................... 12

■Minimum clearances ........................................................................... 12

■Minimum clearances for heat pump cascades (max. 5 outdoor units) 13

■Transport and siting ............................................................................ 13

■Floorstanding installation .................................................................... 14

■Wall mounting ..................................................................................... 14

Installing the indoor unit ......................................................................... 15

■Transport ............................................................................................ 15

■Requirements for the installation room ............................................... 15

■Minimum clearances ........................................................................... 15

■Fitting the indoor unit to the wall ......................................................... 16

Connecting the refrigerant lines ............................................................. 16

■Routing the refrigerant lines ............................................................... 17

■Sound and vibration isolation when line entry is above ground level . 18

■Connection to the outdoor unit ........................................................... 19

■Connection to the indoor unit .............................................................. 20

Connecting the secondary circuit ........................................................... 22

For type AWB-AC only: connecting the cooling circuit .......................... 22

Electrical connection .............................................................................. 23

■Indoor unit: routing cables to the wiring chamber ............................... 24

■Indoor unit: overview of connections .................................................. 25

■Indoor unit: main PCB (230 V~ components) ..................................... 26

■Indoor unit: expansion PCB on main PCB (230 V~ components) ...... 28

■Indoor unit: luster terminals (signal and safety connections) .............. 30

■Indoor unit: controller and sensor PCB (LV connections) ................... 31

■Indoor unit: AVI PCB ........................................................................... 34

■Outdoor unit: overview of connections ............................................... 34

■Connecting the indoor and outdoor unit ............................................. 35

Power supply ......................................................................................... 35

■Heat pump control unit power supply 230 V~ ..................................... 36

■Outdoor unit power supply 230 V~/400 V~ ......................................... 36

■Power supply for instantaneous heating water heater (type AWB-AC

only) .................................................................................................... 38

■Power supply with power-OFF: without on-site load disconnection ... 38

■Power supply with power-OFF: with on-site load disconnection ........ 39

■Mains power supply in conjunction with on-site power consumption . 41

■Smart Grid .......................................................................................... 41

Closing the heat pump ........................................................................... 42

■Fitting the front panel of the indoor unit .............................................. 43

■Fitting the side cover for the outdoor unit ........................................... 43

4. Commissioning, inspec-

tion, maintenance

Steps - commissioning, inspection and maintenance ............................ 44

5. Maintenance Overview of electrical components ........................................................ 61

Opening the programming unit .............................................................. 61

Placing the control panel in its service position ..................................... 62

Overview of internal components: indoor unit ........................................ 63

Overview of internal components: outdoor unit ..................................... 63

■Outdoor unit 4 kW, type AWB/AWB-E/AWB-AC 201.B04 .................. 64

Index

5775 777 GB

■Outdoor unit 5 to 7 kW, type AWB/AWB-EAWB-AC 201.B05/B07 ..... 65

■Outdoor unit 10 to 16 kW, type AWB/AWB-E/AWB-AC 201.B10/B13,

201.C10 to C16 .................................................................................. 66

Draining secondary side heat pump ...................................................... 66

Checking the temperature sensors ........................................................ 67

■Indoor unit: Viessmann NTC 10 kΩ (marked blue) ............................. 68

■Indoor unit: Viessmann NTC 20 kΩ (marked orange) ......................... 68

■Indoor unit: Viessmann Pt500A (green ID label) ................................ 69

■Outdoor unit: NTC 10 kΩ (without ID) ................................................. 69

■Outdoor unit: NTC 50 kΩ (without ID) ................................................. 70

Checking the fuses ................................................................................ 70

6. Indoor unit parts lists Overview of assemblies, indoor unit ...................................................... 72

■Parts not shown .................................................................................. 73

Indoor unit casing .................................................................................. 74

Indoor unit electrical equipment ............................................................. 76

Indoor unit hydraulics type AWB ............................................................ 78

Indoor unit hydraulics type AWB-E ........................................................ 80

Indoor unit hydraulics type AWB-AC ..................................................... 82

7. Outdoor unit parts list

230 V~, type AWB/AWB-E/

AWB-AC 201.B04

Ordering parts ........................................................................................ 85

Outdoor unit parts 230 V~, type AWB/AWB-E/AWB-AC 201.B04 ......... 86

8. Outdoor unit parts list

230 V~, type AWB/AWB-E/

AWB-AC201.B05/B07

Ordering parts ........................................................................................ 89

Outdoor unit parts 230 V~, type AWB/AWB-E/AWB-AC 201.B05/B07 .. 90

9. Outdoor unit parts lists

230 V~, type AWB/AWB-E/

AWB-AC 201.B10/B13

Overview of assemblies 230 V~, type AWB/AWB-E/

AWB-AC 201.B10/B13 ........................................................................... 93

Outdoor unit casing 230 V~, type AWB/AWB-E/AWB-AC 201.B10/B13 94

Outdoor unit electrical equipment 230 V~, type AWB/AWB-E/

AWB-AC 201.B10/B13 ........................................................................... 96

Outdoor unit hydraulics 230 V~, type AWB/AWB-E/

AWB-AC 201.B10/B13 ........................................................................... 98

10. Outdoor unit parts lists

400 V~, type AWB/AWB-E/

AWB-AC 201.C10/C13/C16

Overview of assemblies 400 V~, type AWB/AWB-E/AWB-AC

201.C10/C13/C16 .................................................................................. 101

Outdoor unit casing 400 V~, type AWB/AWB-E/AWB-AC

201.C10/C13/C16 .................................................................................. 102

Outdoor unit electrical equipment 400 V~, type AWB/AWB-E/

AWB-AC 201.C10/C13/C16 ...................................................................104

Outdoor unit hydraulics 400 V~, type AWB/AWB-E/AWB-AC

201.C10/C13/C16 .................................................................................. 106

11. Commissioning/service

reports

Hydraulic parameter report .................................................................... 108

Control parameter report ....................................................................... 108

12. Specification ................................................................................................................ 115

13. Appendix Commissioning order .............................................................................122

Final decommissioning and disposal ..................................................... 122

14. Declaration of Conformity Declaration of conformity ....................................................................... 123

15. Keyword index ................................................................................................................124

Index

Index (cont.)

5775 777 GB

Please dispose of packaging waste in line with statu-

tory regulations.

DE: Use the disposal system organised by

Viessmann.

AT: Use the ARA statutory disposal system (Altstoff

Recycling Austria AG, licence number 5766).

CH: Packaging waste is disposed of by the HVAC

contractor.

Symbols

Symbol Meaning

Reference to other document containing

further information

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.

■Acoustic signal

■Fit new component.

■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

Information

Disposal of packaging

5775 777 GB

Information

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.

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-S is a split air/water heat pump, comprising

1 indoor unit and 1 outdoor unit.

Refrigerant circuit

All components of the refrigerant circuit including the

refrigerant circuit controller with an electronic expan-

sion valve are located in the external unit, except for

the condenser. Subject to operating conditions, com-

pressor output is matched via inverter control.

The internal and external units are connected to each

other hydraulically via the refrigerant lines.

Hydraulics

The internal unit is equipped with a high efficiency [HE]

circulation pump (secondary pump) which transports

the heated heating water into the secondary circuit.

The integral 3-way diverter valve for "Heating/DHW"

changes over between central heating and DHW heat-

ing.

Central heating

The heat pump can supply up to 2 heating circuits: 1

heating circuit without mixer and 1 heating circuit with

mixer. The mixer extension kit (accessories) is

required to switch the mixer.

Central cooling

The Vitocal 200-S type AWB-AC can be used for cen-

tral cooling.

Central cooling results either through a heating/cooling

circuit or via a separate cooling circuit. For this, the

refrigerant circuit is reversed and heat is extracted

from the cooling circuit.

Heat pump control unit

The entire heating system is monitored and controlled

by the integral heat pump control unit Vitotronic 200,

type WO1C.

Type overview

Vitocal 200-S, type AWB AWB-E AWB-AC

201.B 201.C 201.B 201.C 201.B 201.C

Central heating X X X X X X

DHW heating X X X X X X

Central cooling — — — — X X

Integral instantaneous heating water heater — — X X X X

Outdoor unit power supply 230 V~ 400 V~ 230 V~ 400 V~ 230 V~ 400 V~

Information

Intended use (cont.)

5775 777 GB

Information

Indoor unit

905

360

1105 150

960

360

450

A B

147

219

294

369

Fig. 1

Symbol Meaning Connection to the internal unit

Liquid line Type AWB/AWB-AC Pipe 7UNF thread

201.B04 6 mm ⅝

(Reducer

⅝ x ⁷⁄₁₆ supplied)

201.B05 to B13 10 mm ⅝

201.C10 to C16 10 mm ⅝

Hot gas line 201.B04 12 mm ⅞

(Reducer

⅞ x ¾ supplied)

201.B05 to B13 16 mm ⅞

201.C10 to C16 16 mm ⅞

Preparing for installation

Requirements for on-site connections

5775 777 GB

Installation

Symbol Meaning Connection to the internal unit

DHW cylinder flow (on the heating water

side)

G 1¼

Heating water return and DHW cylinder re-

turn

G 1¼

Heating water flow G 1¼

ACable entry < 42 V —

BCable entry 400 V~/230 V~, > 42 V —

1. Prepare the connections on the heating water and

the DHW side.

Flush the heating system.

2. Prepare the electrical connections.

Cable lengths in the internal/external unit plus wall clearance

Cables Internal unit External unit

Power cables

■Heat pump control unit 230 V~ 2.0 m —

■Compressor 230 V~/400 V~ —1.5 m

Other connecting cables

■230 V~, e.g. for circulation pumps 2.0 m —

■< 42 V, e.g. for sensors 2.0 m —

BUS cable for internal/external unit

■12 V 2.5 m 1.5 m

■43 V 2.5 m 1.5 m

Recommended power cables

Indoor unit

Type AWB/AWB-E/AWB-AC 201.B04 to B13, 201.C10 to C16

Heat pump control unit 230 V~

Cable cross-section

■Without power-OFF 3 x 1.5 mm2

■With power-OFF 5 x 1.5 mm2

Type AWB-E and AWB-AC 201.B04 to B13, 201.C10 to C16

Instantaneous heating water heater

Cable cross-section

■400 V~ 5 x 2.5 mm2

■230 V~ 7 x 2.5 mm2

Max. cable length 25 m

Outdoor unit 230 V~

Type AWB/AWB-E/AWB-AC 201.B04 201.B05 201.B07 201.B10 201.B13

Compressor

Cable cross-section 3 x 2.5 mm23 x 2.5 mm23 x 2.5 mm23 x 2.5 mm23 x 4.0 mm2

Max. cable length 29 m 25 m 25 m 20 m 20 m

or or

Cable cross-section — — — 3 x 4.0 mm23 x 6.0 mm2

Max. cable length — — — 32 m 30 m

Preparing for installation

Requirements for on-site connections (cont.)

5775 777 GB

Installation

Outdoor unit 400 V~

Type AWB/AWB-E/AWB-AC 201.C10 201.C13 201.C16

Compressor

Cable cross-section 5 x 2.5 mm25 x 2.5 mm25 x 2.5 mm2

Max. cable length 30 m 30 m 30 m

Preparing for installation

Requirements for on-site connections (cont.)

5775 777 GB

Installation

Installation information

Types of installation:

■Floorstanding installation with line entry above

ground level

■Floorstanding installation with line entry below

ground level

■Wall mounting

Technical guide

Floorstanding installation:

■Use supports for floorstanding installation (accesso-

ries).

■Where such supports cannot be used, install the

external unit freestanding on a solid base of

at least 100 mm height.

■In difficult climatic circumstances (temperatures

below zero, snow, humidity) install the appliance on

a plinth of approx. 300 mm height.

■Take into account the weight of the external unit: See

the following table.

Wall mounting:

■Use the wall mounting bracket set (accessories).

■The wall must meet the structural requirements.

Positioning:

■Never install with the discharge side facing the main

wind direction.

■Provide wall ducts and protective pipes for the refrig-

erant lines and electrical cables without moulded

parts and change of direction.

Weather influences:

■Observe wind loads when installing the unit on sites

exposed to the wind.

■Incorporate the external unit into the lightning protec-

tion system.

■Consider the heat emitted by the unit when planning

your weatherproofing or an enclosure.

Condensate:

■Ensure the condensate can drain freely, and create a

permanent gravel bed below the external unit as a

soakaway.

■In regions with prolonged cold seasons (e.g. Swe-

den), provide an electric ribbon heater (accessory)

for the condensate pan.

Insulation against structure-borne noise and vibra-

tions between building and external unit:

■When line entry is above ground level, fit pipe bends

in the refrigerant lines to isolate vibrations: See

"Connecting refrigerant lines".

■Route electrical cables/leads between the internal

and external units free of stress.

■Installation only on walls with high weight per area (>

250 kg/m2), in other words not on lightweight walls,

roof structures etc.

■For floorstanding installation, only use the rubber

mounts supplied.

■For wall mounting, only use the anti-vibration mounts

from the bracket set.

■Never use additional anti-vibration mounts, springs,

rubber mounts, etc.

Weight of outdoor units

Type AWB/AWB-E/

AWB-AC

Weight in kg

201.B04 43

201.B05 66

201.B07 66

201.B10 113

201.B13 113

201.C10 113

201.C13 113

201.C16 121

Installation sequence

Installing the outdoor unit

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Installation

Installation site

■Select a site with good air circulation, so that the

cooled air can dissipate and be replaced by warm

air.

■Never install in interior corners, 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 operation

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 operation

will result in the heated discharged air re-

entering the unit. This can lead to high pres-

sure faults.

Avoid "air short circuits".

■When siting the unit where it is exposed to wind,

ensure that the wind cannot influence the fan area.

Strong wind can have a negative influence on the

evaporator ventilation.

■Take into account the lengths of the refrigerant lines:

See "Connecting refrigerant lines".

■Select the installation site so that the evaporator can-

not be blocked by leaves, snow etc.

■Select the installation site giving due consideration to

the physical laws concerning the propagation and

reflection of sound.

Technical guide "Heat pump principles"

■Never install next to or below bedroom windows.

■Maintain a min. 3 m distance from footpaths, drain

pipes and sealed surfaces. The cooled air in the dis-

charge area creates a risk of ice forming when out-

side temperatures are below 10 °C.

■The installation site must be easily accessible,

for example for maintenance work: See "Minimum

clearances".

Minimum clearances

Fig. 2 Example type AWB/AWB-AC 201.B04

AAir intake

BAir discharge

Installation sequence

Installing the outdoor unit (cont.)

5775 777 GB

Installation

Type AWB/AWB-E/

AWB-AC

Dimensions in mm

a b c d

Line entry

Above ground

level

Below ground

level

201.B04 ≥ 100 ≥ 100 ≥ 400 ≥ 300 ≥ 1000

201.B05 ≥ 100 ≥ 100 ≥ 400 ≥ 300 ≥ 1000

201.B07 ≥ 100 ≥ 100 ≥ 400 ≥ 300 ≥ 1000

201.B10 ≥ 100 ≥ 200 ≥ 400 ≥ 300 ≥ 1000

201.B13 ≥ 100 ≥ 200 ≥ 400 ≥ 300 ≥ 1000

201.C10 ≥ 100 ≥ 200 ≥ 400 ≥ 300 ≥ 1000

201.C13 ≥ 100 ≥ 200 ≥ 400 ≥ 300 ≥ 1000

201.C16 ≥ 100 ≥ 200 ≥ 400 ≥ 300 ≥ 1000

Minimum clearances for heat pump cascades (max. 5 outdoor units)

Facing layout without partition wall Facing layout with partition wall

> 500

> 1500

> 500 > 500

> 500

> 500 > 500

Fig. 3

> 500

400 A

> 500 > 500

400

> 500

> 500 > 500

Fig. 4

Single row layout

> 500

400

> 500 > 500 > 500

> 500

Fig. 5

AAir intake

BAir discharge

CPartition wall

Transport and siting

!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 external unit is strongly

tilted, lubricant will enter the refrigerant circuit

and damage the appliance.

Max. tilting angle: 45°

Installation sequence

Installing the outdoor unit (cont.)

5775 777 GB

Installation

Floorstanding installation

Fig. 6

Fig. 7

ASupport for floorstanding installation (accessories)

BGravel bed as condensate soakaway

CConcrete foundations (see technical guide)

DKG conduit DN 100 (only with entries below

ground level)

ERubber mounts (supplied)

Note

We recommend letting condensate drain away freely

(without condensate pipe).

Wall mounting

Installation must only be performed with the bracket

set suitable for wall mounting (accessory).

Separate installation instructions

Installation sequence

Installing the outdoor unit (cont.)

5775 777 GB

Installation

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.

Requirements for the installation room

!Please note

Unfavourable ambient conditions can lead to

malfunctions and appliance damage.

■The installation room must be dry and free

from the risk of frost.

■Ensure ambient temperatures between 0 and

35 °C.

Danger

Dust, gases and vapours can be damaging to

health and trigger explosions.

Avoid dust, gases and vapours in the installation

room.

Minimum room volume (to EN 378):

Type AWB/AWB-E/

AWB-AC

Minimum room volume in m3

201.B04 2.7

201.B05 4.8

201.B07 4.8

201.B10 6.7

201.B13 6.7

201.C10 6.7

201.C13 6.7

201.C16 6.7

Minimum clearances

100

1000

100

A B

Fig. 8

ACable entry < 42 V

BCable entry 400 V~/230 V~, > 42 V

Installation sequence

Installing the indoor unit

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Installation

Fitting the indoor unit to the wall

Fig. 9

Connecting the refrigerant lines

■The external unit is pre-charged with refrigerant

R410A.

■In the following cases, fit oil lift bends in the rising

pipe:

–In heating mode, if the internal unit is installed

higher than the external unit: See diagram below.

–In cooling mode, if the internal unit is installed

lower than the external unit.

Installation sequence

Installing the indoor unit (cont.)

5775 777 GB

Installation

Routing the refrigerant lines

Type AWB/AWB-E/AWB-AC 201.B04 201.B05 201.B07 201.B10

201.C10

201.B13

201.C13

201.C16

Refrigerant lines

Min. line length 3 m 3 m 3 m 3 m 3 m 3 m

Max. line length 20 m 30 m 30 m 30 m 30 m 30 m

Max. height differential, indoor unit – out-

door unit

10 m 15 m 15 m 15 m 15 m 15 m

Note

No topping up is required for line lengths between

3 and 12 m.

Internal unit above external unit Internal unit below external unit or at same level

5000

Fig. 10

CA B

Fig. 11

Note

Both diagrams illustrate heating mode.

AInternal unit

BHot gas line

CLiquid line

DExternal unit

EOil lift bends

Installation sequence

Connecting the refrigerant lines (cont.)

5775 777 GB

Installation

Sound and vibration isolation when line entry is above ground level

Note

Route connecting cables and refrigerant lines sepa-

rately.

Fig. 12

Note

Only for 230 V appliances

APipe bends for compensating vibrations

BTube clips with EPDM inserts

CLine entry, e.g. KG conduit with thermal insulation

DCables/leads between internal and external units

Installation sequence

Connecting the refrigerant lines (cont.)

5775 777 GB

Installation

Connection to the outdoor unit

Fig. 13 Example type AWB/AWB-AC 201.B04

CLiquid line

DHot gas line

1. Remove the side cover: see page 34.

2. !Please note

Contamination (e.g. metal swarf) or moisture

in the copper pipes of the refrigerant lines

will cause the appliance to malfunction.

Point the pipe openings downwards or tem-

porarily plug them.

Undo the nuts from connections C (liquid line) and

D (hot gas line) of the refrigerant lines.

Type AWB/AWB-E/AWB-AC 201.B04:

Slide the nuts onto the refrigerant lines prepared

on site.

Type AWB/AWB-E/AWB-AC 201.B05 to B13,

201.C10 to C16:

Replace nuts with union nuts supplied (indoor unit):

■⅝ UNF for liquid line

■⅞ UNF for hot gas line

3. Flare the pipe ends.

4. Secure the pipes.

Installation sequence

Connecting the refrigerant lines (cont.)

5775 777 GB

Installation

Tighten the nuts with the following torque:

Type AWB/

AWB-E/

AWB-AC

Line Connection to the

outdoor unit

Torque in Nm

201.B04 Liquid line 7 6 mm ⁷⁄₁₆ UNF 14 to 18

Hot gas line 7 12 mm ¾ UNF 50 to 62

201.B05 Liquid line 7 10 mm ⅝ UNF 33 to 42