Carrier 30AWH004HB / 30AWH006HB / 30AWH008HB / 30AWH012HB. Service Manual - page 2

30AW

3.3.6 Circulating water Pump (only H version)

Water flow setting

Anti-seizing pump

Speed selector

Shaft protection plug

Pumps have a manual speed selector (3 speed settings) which allow for
adjustment of speed to match the requirements of the system.

The 30AWH__H units are equipped with protection against the seizing
of the pump motor shaft. To allow this function, do not empty the
system or disconnect the power during long periods of inactivity.
In any case, if the pump rotor shaft seizes after a long period of
inactivity, the user must do the following to unblock it:

Pump has to be selected in order to provide nominal water flow at
expected water loop pressure loss.
Centrifugal Pump Curves.
Water loop pressure loss estimation at nominal water flow is needed to
define water pump size.

Pump Speed Setting procedure:
The best speed setting will provide adequate circulation and provide

UIFDPSSFDUøPXBOESFUVSOUFNQFSBUVSFEJòFSFOUJBMT5IJTXJMMBDIJFWF
NBYJNVNFDPOPNZBOEFóDJFODZ

Set the speed selector to minimum (one)

Open all thermostatic or manual radiator valves to maximum

Set any room thermostatic controls to maximum

Start up system and pump should start

8BJU_NJOTBOENFBTVSFXBUFSUFNQFSBUVSFEJòFSFOUJBM

(leaving water temperature-entering water temperature)

8BUFS5FNQFSBUVSF%JòFSFOUJBMTIPVMECF¡$JG8BUFSEFMUB

temperature is more than 6°C select a higher pump speed An

BMUFSOBUJWFTPMVUJPOJTNFBTVSFXBUFSQSFTTVSFEJòFSFOUJBMCFUXFFO

unit water IN-OUT pipes and select pump speed to match the unit
nominal water flow (see unit available static pressure curves).

- Disconnect the power
- Remove the front panel
- Unscrew the shaft-protection plug on the back of the pump
- Insert a screwdriver in the slot and turn the rotor shaft
- Remount the protection plug
- Reconnect the power

3.3.7 External water pump selection (X and NX version)

Pump Speed Setting procedure is the same used for 30AWH---H version.

"OBMUFSOBUJWFTPMVUJPOJTNFBTVSFXBUFSQSFTTVSFEJòFSFOUJBMCFGPSFBOE

after external water pump and select pump speed to match the unit
nominal water flow (see water pump curves)

Installation

14-03-2011 14:41:26

30AW

Installation

Charge the water loop, with water, until the pressure on the hydro unit
reads 0.15MPa (1.5bar )
Setting NUI Code104 (installation mode) = 1 water pump is forced on.
Loosen the cap of the air purge valve located on the top of back up
heater to purge air from the water circuit. If air remains in the system the
system will not operate correctly.

An expansion vessel has to be added in the water loop with 30AWH___X
and 30AWH___NX.
The capacity of the internal expansion vessel fitted in 30AWH__H :

t MJUFSTGPSTJ[FTBOE
t MJUFSTGPSTJ[FBOE 'PSUIJTNPEFMUIFFYQBOTJPOWFTTFM

has been dimensioned for a typical terminal fan coil water loop)

If water loop content is higher than specified in the installation manual,
an additional expansion vessel has to be added.
The expansion volume can be calculated using the following formula.

Looking for Code 111 (water flow switch status) the installer can verify if
the water fill operating is completed (when water is flowing, parameter
111 = 1)
When completing the Test Run, during the commissioning of the
system, the water pressure in the system may drop below 1,5 bar. In this
event please add more water to the system.
In the case of a new installation, or cleaning the circuit, it is necessary to
perform a preventive cleaning of the system.
In order to guarantee the good operation of the product, each time you
clean the system, replace the water or add glycol, check that the liquid
appears clear, without visible impurities and that the hardness is less
than 20 °f.

3.3.8 Water loop charging, system cleaning and Water Characteristics

3.3.9 Expansion vessel (Volume calculation)

Where:
V: Necessary total vessel capacity (L)

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Vs: Total water volume in the closed system (Do not include Hot Water

Cylinder)

P1: System pressure at tank setting position (Mpa_abs*). (Pipe inner

pressure during pump operation before heating device operates =
water supply pressure)

P2: Maximum pressure used during operation at tank setting position

(Mpa_abs*=safety valve setting pressure)

* The absolute pressure valve (abs.) is obtained by adding the atmos-

pheric pressure (0,1 MPa (1 bar)) to the gauge pressure.

The initial pressure of this expansion Vessel is 0.1Mpa (1 bar).
The release pressure of the safety valve is 0.3Mpa (3 bar).

Water temperature and expansion coefficient (ε)

Hot water temperature (°C)

Expansion rate (ε)

Hot water temperature (°C)

Expansion rate (ε)

0.0002

0.0121

0.0000

0.0145

0.0000

0.0171

0.0003

0.0198

0.0008

0.0229

0.0017

0.0258

0.0029

0.0292

0.0043

0.0324

0.0050

0.0961

0.0078

0.0967

0.0100

Example:

Maximum hot water temperature 55°C, initial water charge 0.2MPa and system volume 200 litres. The calculated Vessel capacity is:

)

(

)

(

200

0145

14-03-2011 14:41:27

30AW

Installation

% Inhibited

Ethylene

Glycol

10%

20%

30%

40%

Freezing temperature (*)

-4 °C

-9 °C

-15 °C

-23 °C

Correction

Factors

Capacity

0,996

0,991

0,983

0,974

Absorbed power

0,990

0,978

0,964

1,008

Loss of head

1,003

1,010

1,020

1,033

(*) Note: Temperature values are indicative.

Always refer to the temperatures indicated for the specific product used

Pipe water content

Internal Diameter

Outer diameter

Liters / meter

copper

12 mm

14 mm

0,11 l/m

14 mm

16 mm

0,15 l/m

16 mm

18 mm

0,20 l/m

20 mm

22 mm

0,31 l/m

25 mm

28 mm

0,49 l/m

32 mm

35 mm

0,80 l/m

steel

"12.7 mm (1/2'')"

3/8'' Gas

0,13 l/m

"16.3 mm (5/8'')"

1/2'' Gas

0,21 l/m

"21.7 mm (7/8'')"

3/4'' Gas

0,37 l/m

"27.4 mm (11/16'')"

1' Gas

0,59 l/m

Unit

30 AWH

004

006

008

012

015

Nominal water flow

Std

l/s

0,20

0,28

0,33

0,58

0,69

Water loop content for

30AWH___H units

Min

Max

Max water loop pressure

Max

kPa

300

Filling water pressure

Min

kPa

120

Max elevation 30AW upper

Max

TABLE TO USE FOR CALCULATING THE WATER CONTENT IN THE SYSTEM

Installed Unit

.............

Unit content (*)

.............

Pipe content (**)

.............

Uses (fan-coil, panels, radiators, etc.) (***)

.............

Total content (****)

.............

(*) Consult the technical data table
(**) Consult the pipe water content table
(***) Consult the manual for the installed uses
(****) The water content of the system must be between the minimum and maximum values for the units with hydronic kit and greater than the minimum
value for units without hydronic kit. The minimum value is necessary to provide optimal comfort.
For units without hydronic kit, add a suitable expansion vessel to the water content of the system.

14-03-2011 14:41:27

30AW

Installation

3.4 Refrigerant schematics

Refrigerant Circuit

N°

Component

N°

Component

4-way valve

TR sensor

TS sensor

Liquid tank

Check joint

Pulse Motor Valve

Accumulator

Distributor

Muffler

TE sensor

TD sensor

13*

TL sensor (only 015)

DC twin rotary compressor

Propellor fan

BPHE

TO sensor

Muffler

Heat exchanger

14-03-2011 14:41:28

30AW

The unit can be controlled and set via:

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t8JSFSFNPUFDPOUSPM"83$ 0QUJPOBM
t4XJUDIFT OPUTVQQMJFE

Electrical connections

WARNING

Make water connections before electrical connections.
Make ground connection prior to any other electrical connections

All field electrical connections are the responsibility of the installer.

Unit

30AWH

004_

006_

008_

012_

015_

Power supply

V- ph - Hz

230 - 1 -50

Allowable Voltage Range

207 ÷ 253

Maximum power drawn

2.3

2,7

5.1

Maximum current drawn

7,2

Power Fuses

Type

gL type

Current

10 - B type

15 - B type

25 - D type

Power supply cables

mm2

H07RN-F 3 x 2.5mm2

Maximum Pump Current

External circulation

Use cables H03VV-F 4x0.75 mm2 to connect the control to wire NUI

and H03VV-F 6x0.75 mm2 to connect the control to wire SUI

Check the supply voltage and frequency of the unit.
Remove the front panel, the electric parts appear at the front side.
The power supply cables can be inserted into the pipe holes. Be sure
to fix the power cable with bundling band to avoid contact with the
compressor and the hot pipes.
To ensure good tensile strength, the electric cables must be fastened
using the cable-holder on the plate (Only for size 015 use the strain relif
supplied with the unit).

WARNING:

t8SPOHXJSJOHNBZDBVTFBCVSOPVUUPTPNFFMFDUSJDBMQBSUT
t#FTVSFUPVTFUIFDPSEDMBNQTBUUBDIFEUPUIFQSPEVDU
t%POPUEBNBHFPSTDSBUDIUIFDPOEVDUJWFDPSFBOEJOOFSJOTVMBUPSPG

power and inter-connecting cables when peeling them.

t6TFUIFQPXFSBOE*OUFSDPOOFDUJOHDBCMFTXJUITQFDJöFEUIJDLOFTT

specified type and protective devices required.

t$POOFDUUIFDPOOFDUJOHDBCMFUPUIFUFSNJOBMBTJEFOUJöFEXJUIUIFJS

respective numbers on the terminal block of the unit.

t5IFNBJOTTVQQMZDPOOFDUJOHDBCMFNVTUCF)3/'UZQF *&$

57) or higher, with synthetic rubber insulation with Neoprene coating,
according to EN 60335-2-40 codes.

t5IFJOTUBMMBUJPOGVTF #UZQF#UZQFPS%UZQFJOBDDPSEJOH

with the version) must be used for the power supply line of this heat
pump.

t*ODPSSFDUJODPNQMFUFXJSJOHNJHIUDBVTFBOFMFDUSJDBMöSFPSTNPLF
t1SFQBSFUIFFYDMVTJWFQPXFSTVQQMZGPSUIFIFBUQVNQ
t&OTVSFUIBUNBJOTTVQQMZDPOOFDUJPOJTNBEFUISPVHIBTXJUDIUIBU

disconnects all poles, with contact gap of a least 3 mm.

Power supply terminal block

Power cable

Ground connector

Terminal block

Earth line

Power cable

L N

14-03-2011 14:41:29

30AW

Terminal Block X Version

Electrical connections

4.1 Auxiliary electrical connections

N N L

4 19 9

C W G Y

2 3 6 7

N N L

4 19 9

C W G Y

2 3 6 7

N N 18

10 11

4 5 16

13 14

C W G Y

23 24 1

2 3 6 7

8 21 22

Alarm /

Ambient
temperature
reached

External
temperature

probe

Alarm Input

3 Ways

valve

Alarm + defrost /

Dehumidifier

Electric heater /

Additional Water

pump

External
heat source
/ defrost

33AW-RC1

Remote control

33AW-CS1

Remote control

Limitation
frequency

Sanitary Input

SUI ALARM

+ 12 V

ECO
HTG/CLG
ON/OFF

N N 18

10 11

4 5 16

13 14

C W G Y

23 24 1

2 3 6 7

8 21 22

Alarm /

Ambient
temperature
reached

External
temperature

probe

Alarm Input

3 Ways

valve

Alarm + defrost /

Dehumidifier

Electric heater /

Additional Water

pump

External
heat source
/ defrost

33AW-CS1

Remote control

Limitation
frequency

Sanitary Input

External Water

pump

33AW-RC1

Remote control

SUI ALARM

+ 12 V

ON/OFF

HTG/CLG

ECO

Terminal Block H Version

Output Dry-contact, High voltage

Input Dry-contact, Low voltage

14-03-2011 14:41:50

30AW

Electrical connections

N N L 10 20 12

4 19 9 13 14 15

C W G Y 23 24 1

2 3 6 7 8 21 22

N N L 10 20 12

4 19 9 13 14 15

C W G Y 23 24 1

2 3 6 7 8 21 22

1 2 3 4 5 6

7 8 9 10 11 12

C W G Y

13 14 15

3 Ways
valve

External Pump

Alarm and
defrost status

Sanitary
Input

33AW-RC1

Remote control

33AW-CS1

Remote control

Bus
RS 485

Defrost signal or air
temperature reached signal

ON/OFF

HTG/CLG

Terminal Block NX Version

4.1.1 Sanitary hot water

The 30AWH units drive a 3-way valve (7) to manage a sanitary water
accumulation tank. The operating logic provides that, in the case of
a request for sanitary water by an accumulation tank (8), the system
controls a 3-way valve to direct the hot water only to the tank and to
operate at the maximum capacity to provide water at 60 °C (compatible
with the operating envelope).
Procedure to install a three way valve:

1. Install three way valve on water piping closer as possible to

AQUASNAP

2. Connect electrically three way valve to N, 18, 10 terminals (1,2 and

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only connect N and 10 terminals

3. Connect Sanitary Hot Water dry contact thermostat/request (eg.

45°C ON, 55°C OFF) to 13 and 15 terminals (7 and 8 in NX version)

Closing that contact, GMC drives three way valve and AQUASNAP runs

BU¡$JOIFBUJOHNPEFUPPCUBJOIPUXBUFS QSJPSJUZ4)8XIFO

contact opens, GMC drives back the system in the previous mode

DPPMJOHIFBUJOHPSPò

Attention:

1) The sanitary water request has higher priority than the

programmed operating mode in both heating and cooling mode.

2) NUI code 146 configure SHW logic when Aquasnap unit is in OFF

mode.

14-03-2011 14:42:06

30AW

Electrical connections

Load

TFC, floor or

radiators

Water collector

Check valve

Example

of water circuitation:

4.1.2 External heat source

4.1.3 Dehumidifier or a Humidifier

An External Heat Source can be driven by Aquasnap Plus.
For this feature is necessary install 33AW-CS1 interface
Procedure to install an External Heat Source

Connect electrically EHS to N and 4 terminals to a relay that drives

EHS
Configure parameter 106 through 33AW-CS1 interface (1 for EHS)

Configure outdoor temperature limits (parameter 148 and 150).

A Dehumidifier or a Humidifier can be driven by Aquasnap
Plus using humidity sensor into 33AW-CS1 interface.
For this feature is necessary install 33AW-CS1 interface

Connect electrically a Dehumidifier or a Humidifier to

N, 11 terminals to a relay that drives Dehumidifier (NO
contact) or a Humidifier (NC contact)
Configure parameter 108 through 33AW-CS1. (2 for

dehumidifier /Humid.)
Configure ambient humidity limit (parameter 107)

where Dehumidifier or a Humidifier is activated (eg.
with par.107 = 65, Dehumidifier is activated with

BNCJFOUIVNJEJUZ63

When the OAT is less than second parameter both the HP and the
EHS will be operative as per algorithm.

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mode and EHS is activated (eg.with par.148 = -2 EHS is activated with
OAT < -2°C + hysteresis)
To change the delta T needed to activate the EHS change the

parameter 152. (Factory default 5 °C).

14-03-2011 14:42:08

30AW

Electrical connections

4.1.4 Silent/night mode

4.1.5 Stop Unit or Defrosting signals

4.1.6 External temperature probe

Silent/night mode is a system setting to limit maximum AQUASNAP
noise level.
Noise level is reduced limiting maximum compressor frequency.

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reduced of 3dBA

1. Configure code 5 through 33AW-CS1 interface or through DST (2 for

Silent/night mode active).

$POöHVSFDPNQSFTTPSGSFRVFODZSFEVDUJPO /VJDPEFNBYJNVN

DPNQSFTTPSGSFRVFODZQBSBNFUFSSBOHFJTGSPNUP

3. Select Silent/night mode on scheduling

This feature is available using 33AW-CS1 interface dry contact to
frequency reduction mode (PINS 13-14).

There are several signals available on the terminal strip to indicate
particular conditions or the stop of the external unit.
The available signals are:

- Defrosting: When operating in Heating mode, depending on the

external environmental conditions, the unit could perform

defrosting cycles to clean the external battery of any ice formations.

Under these conditions, it is not possible to guarantee the reque-
sted temperature output water temperature, which could reduce
general comfort. (PINS: 4-N or 11-N, NUI CODE: 106 or 108)

- Alarm: Indicates an alarm condition that stops the compressor.

(PINS: 5-N or 11-N, NUI CODE: 147 or108)

If the positioning of the external unit could induce a non-representative
reading of the external temperature by the probe positioned on the
machine, an additional temperature probe can be provided (NTC 2 wire,

Units without an integrated pump allow driving an external one.

With the contact closed, the unit will operate with a maximum
frequency lower than the standard one, otherwise it will operate in
standard mode.

Short-Cut to Frequency reduction Mode

Press the active key among Hold (

) key for 10 seconds to make Night

mode active and can de-activate the Night mode by pressing the Hold
(

) key again for 10 seconds. When Frequency reduction / Night /

Silence mode is active, NUI will display the (

) Icon. If FR mode is active,

this will always override the selection done in program schedule.

- Ambient Temperature Reached: If suitably programmed using the

User Comfort Interface, and operating with this interface, a signal
is provided that indicates that the ambient temperature has been

SFBDIFE5IJTTJHOBMDBOCFVTFEUPUVSOPòGBODPJMT 1*/4//6*

CODE: 147)

Several outputs are used for more than one condition. It is possible to
configure these outputs through the User Comfort Interface installation
menu (refer to the 33AW-CS1 manual).
Refer to the tables of next page and figures on paragraph 4.1 for the
correct pin-outs and use of the signals.

3kΩ @ 25°C, Carrier code: 33AW-RAS01) remote. Connect the terminals
of the probe between PINS 23 and 24 of the terminal strip.

4.1.7 External water circulator for 30AWH__X and 30AWH__NX units

4.1.8 Additional Water pump (PINS 12-N)

The signal is supplied between PINS 16 and N of the terminal strip (PINS
1 and 4 for the NX version).

It is managed in the following way:
If OAT > temperature set in nui code 148
The additional water pump activation depending by the nui code 156

1. ON/ OFF depending on the outdoor unit water pump logic, in case

PG4)8BDUJWBUJPO"%%81JT0/

2. ON/ OFF depending on the outdoor unit water pump logic, in case

PG4)8BDUJWBUJPO"%%81JT0''

If OAT < temperature set in nui code 148
The additional water pump activation depending by the nui code 157
(0. always ON, 1. always OFF or 2. ON/OFF depending by EHS).

14-03-2011 14:42:09

30AW

30AWH__H

Description

PIN

Signal

Limits

33AW-CSI

Installation
Menu Code

Additional external temperature probe

23 - 24

Input (NTC 3kΩ @25°C)

N.A.

126

Sanitary Water Request

13 - 15

Input (contact switch quality

>25mA@12V)

N.A.

153

Maximum Frequency Reduction Compressor

13 - 14

Input (contact switch quality

>25mA@12V)

N.A.

5-6.

3-way valve

10 - 18 - N

Output 230Vac (18-N: Power

Suply, 10:Signal)

1 ph ~ 230V, 2A

N.A.

1- External Heat Source Request

2- Defrost

4 - N

Relay Output Contact

1 ph ~ 230V, 2A

106 - 148 -150 -151 -

152 -154 -155

1- Alarm

2- Ambient temperature reached

5 - N

Relay Output Contact

1 ph ~ 230V, 2A

147

1- Alarm + defrost

2- Humidifier

11 - N

Relay Output Contact

1 ph ~ 230V, 2A

107 - 108

1- Trace heater

2- Additional WP

12 - N

Relay Output Contact

1 ph ~ 230V, 2A

156 - 157

Alarm input

Input (contact switch quality

>25mA@12V)

N.A.

ON / OFF

6 - 3

Dry contact

N.A.

NORMAL / ECO Mode

8 - 3

Dry contact

N.A.

Heating / Cooling Mode

7 - 3

Dry contact

N.A.

30AWH__X

Description

PIN

Signal

Limits

33AW-CSI

Installation
Menu Code

Additional external temperature probe

23 - 24

Input (NTC 3kΩ @25°C)

N.A.

126

Sanitary Water Request

13 - 15

Input (contact switch quality

>25mA@12V)

N.A.

153

Maximum Frequency Reduction Compressor

13 - 14

Input (contact switch quality

>25mA@12V)

N.A.

5-6

3-way valve

10 - 18 - N

Output 230Vac (18-N: Power

Suply, 10:Signal)

1 ph ~ 230V, 2A

N.A.

1- External Heat Source Request

2- Defrost

4 - N

Relay Output Contact

1 ph ~ 230V, 2A

106 - 148 -150 -151 -

152 -154 -155

1- Alarm

2- Ambient temperature reached

5 - N

Relay Output Contact

1 ph ~ 230V, 2A

147

1- Alarm + defrost

2- Humidifier

11 - N

Relay Output Contact

1 ph ~ 230V, 2A

107 - 108

1- Trace heater

2- Additional WP

12 - N

Relay Output Contact

1 ph ~ 230V, 2A

156 - 157

Alarm input

Input (contact switch quality

>25mA@12V)

N.A.

External water pump

16 - N

Relay Output Contact

1 ph ~ 230V, 2A

N.A.

ON / OFF

6 - 3

Dry contact

N.A.

NORMAL / ECO Mode

8 – 3

Dry contact

N.A.

Heating / Cooling Mode

7 – 3

Dry contact

N.A.

30AWH__NX

Description

PIN

Signal

Limits

33AW-CSI

Installation
Menu Code

Sanitary Water Request

7 - 8

Input (contact switch quality

>25mA@12V)

N.A.

3-way valve

1 - 2 - 3

Output 230Vac

1 ph ~ 230V, 2A

N.A.

Water Circulator

1 - 4

Output 230Vac

1 ph ~ 230V, 2A

N.A.

Alarm

5 - 6

Input (contact switch quality

>25mA@12V)

N.A.

147

Defrost

9 - 10

Input (contact switch quality

>25mA@12V)

N.A.

106

BUS RS485

11 - 12

14-03-2011 14:42:10

30AW

Space heating

Heat pump

outdoor unit

Under floor heating

Mid temp radiator

LWT 55°C

LWT 45°C

LWT 35°C

Sanitary hot

water

External

heat source

33AW-CS1

INTERFACE

Water temperature range produced by AQUASNAP
air to water heat pump 20-60°C

Heat pump

outdoor unit

Under floor heating

Mid temp radiator

55°C

45°C

35°C

60°C

Humidifier

Sanitary hot

water

33AW-CS1

INTERFACE

60°C

4.2 Applications

Heating Applications

14-03-2011 14:42:12

30AW

Electrical connections

HEATING

COOLING

EWT-LWT

OAT

30-35°C

7/6°C

40-45°C

7/6°C

23-18°C

35°C

12-7°C

35°C

Capacity

COP

W/W

Capacity

COP

W/W

LWA

[dB(A)]

Capacity

EER

W/W

Capacity

EER

W/W

LWA

[dB(A)]

30AWH004HB

4.10

4,05

3.90

3.2

4.90

4.05

3.30

2.91

30AWH006HB

5.80

4.20

5.80

3.01

7.00

3.61

4.70

2.91

30AWH008HB

7.20

3.91

7.40

3.16

7.80

3.90

5.80

2.91

30AWH012HB

11.90

3.91

12.95

3.01

13.45

3.61

10.20

2.91

30AWH015HB

14.50

4.06

14.0

3.21

16.00

3.81

13.00

2.91

30AWH004XB /NX

4.08

4.13

3.88

3.25

4.79

4.04

3.20

2.93

30AWH006XB /NX

5.76

4.30

5.76

3.06

6.86

3.62

4.56

2.90

30AWH008XB /NX

7.16

3.98

7.36

3.20

7.66

3.95

5.64

2.89

30AWH012XB /NX

11.86

3.95

12.91

3.03

13.15

3.57

9.90

2.86

30AWH015XB /NX

14.47

4.09

13.96

3.22

15.66

3.76

12.68

2.86

4.3 Range Description (Systems capacity)

Cooling Applications

Data according to EN14511

14-03-2011 14:42:13

30AW

Electrical connections

4.4 Wiring diagrams

Inverter control size 004HB

14-03-2011 14:42:16

30AW

GMC control size 004HB

Electrical connections

14-03-2011 14:42:18

30AW

Electrical connections

Inverter control size 004XB

14-03-2011 14:42:21

30AW

GMC control size 004XB

Electrical connections

14-03-2011 14:42:24

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