TEST RUN

1 Before first turning on the power, please check if is electric connections for the module and the outdoor unit in right order.

2 After switching of power, check the indicators:

■ Module ATW-C-INV2+: Flashing 2-color LED indicates the demand of compressor

capacity and operation mode of outdoor unit - see Tab. 1.

!

Error indication: Continuous green light of 2-color LED indicates missing the communication response from the outdoor unit.

■ Outdoor unit: If the outdoor unit is equipped by an error indication with LED lamps

or alphanumeric display, check the error status if is not indicated. To decoding the

errors, use the Fujitsu-General service documentation (Installation manual,

Service manual, Service Instructions).

3 Starting the outdoor unit:

In the case when is control signal from the master control system missing, it is possible test device by using voltage +12V from the terminal marked as +12 directly to the input

ON. This can be provided by the wire jumper. The desired mode cooling/heating must be set up by input H/C. At the beginning LED of the module indicates 0% of power requirement for the compressor. After running of initialization protection delay the power demand is gradually increasing up to 100% (This interval may take up to several minutes). During this time please keep checking operation of the compressor and outdoor unit fan by hearing. After is 100% of the power reached then you can start test current of the unit and also working pressure of the refrigerant.

!

Caution!! If consumption of the heat from indoor unit is not provided (for example, if indoor heat exchanger is not connected, indoor fan or circulation pump is not running), then compressor may operate maximally 1 minute!!

Manufacturer:

IMPROMAT KLIMA Co.Ltd. Tr. T Bati 5267, 760 01 Zlin, Czech Republic tel.: +420 577 004 141, fax: +420 577 149, e mail: [email protected]

www.impromat.cz

INSTALLATION MANUAL

Module for controlling Inverter outdoor units

99200 ATW-C-INV2+ type AOYG

99202 ATW-C-INV2+ type AOY

99203 ATW-C-INV2+ type AOYA

99204 ATW-C-INV2+ type AOYR

99104 ATW-C-INV2+ type AOYD

99210 ATW-C-INV2+ type HP

USING

Module ATW-C-INV2+ supply direct control of Fujitsu-General-Fuji outdoor inverter units in the cases when is necessary used heat exchanger of different maker and different construction. Module ATW-C-INV2+ replaces the previous type ATW-C-INV and ATW-C-INV2, with which is backward compatible.

PACKAGE CONTENTS:

C

O

O O O O

O O O O

0

1

ATW-C-INV2+

O

H

O O O

O O O

O

O

13

14

RS232

T

ON H C +12

T

TH

Module ATW C INV2+ Temperature sensor ETS A This manual

MECHNICAL PLACING

Module with protection IP20 is designed for mechanical mounting on DIN rail situated inside of electrical switchboard or installation box. For outdoor environment must be used only in facilities with adequate protection. There is also possibility to locate module inside of outdoor unit (in the electrical area, but only if there is left enough space for installation).

ELECTRICAL CONNECTING

On enclosed scheme can be find general wiring of the supplied module. Detailed specification of inputs and outputs and possibility of their use are in the Technical Manual.

? Be careful!! Connecting wires between the module and outdoor unit must not be confused!!

Possible destruction of the module and electronics of the outdoor unit !!!

? Power and communication terminal of the module must not be used for power supply of the

outdoor unit!!

? The Module may be power supply only from outdoor unit to which is communicatively

connected. Power supply from another source is unacceptable. If the outdoor unit doesn’t

have separate terminal for indoor unit connection, please use connection over fuse terminal

of the outdoor unit. If is not possible power supply module from outdoor unit or in case of

request of separated power supply circuits, then is necessary use optical separating

modules ATW-FIN / ATW-FOUT.

Basic circuit for cooling and heating applications

module and outdoor unit in right order!!!

In case of wrong cable wiring is high possibility of destruction the module or electronics of the outdoor unit!!

Terminal block of o utdoor unit

Power supply

Connection cable

2

(3x Cu 1,5-2,5 mm )

Output

"Compressor operation"

(230 VAC/ max. 1,6A)

Output

"Error"

(230 VAC/ max. 0.4A)

L = phase wire

N = neutral wire

C = communication

Output

"Defrosting"

(230 VAC/ max. 0.4A)

L N 1 2 3

(S pecification of p ower supply wiring see documentation of used outdoor unit type)

Input ON2 “Operation blocked” (230 VAC/1mA)

In factory setting is not active. Activation with

ATW SW or to order is possible.

N C L

Tab.1: 2-color LED indication cycle a) type AOY b) types AOYA, AOYR, AOYD, AOYG, HP

Capacity step

14 (100%)

13

12

11

10

9

8

7 (50%)

6

5

4

3

2

1

0 (stop)

Operation cooling heating

Indication cycle

Capacity step

15 (100%)

14

13

12

11

10

9

8

7 (50%)

6

5

4

3

2

1

0 (stop)

Operation cooling heating

Note: Lenght of the indication cycle in AOYG modules is 15 s, in another types is 7,5 s.

Input 0 to +10V

Demand of compressor capacity

0V=Stop, 10V=100%

Input Cooling / Heating open = Cooling close = Heating

-

+

C

O

O O O O

O O O O

0

1

O

H

O O O O

O O O O

13

14

RS232

Accessory connector

ATW-C-INV2+

T

ON H/C +12

T

TH white shield

ETS-A temperature sensor of the indoor heat exchanger

INSTALLATION OF TEMPERATURE SENSOR ETS-A

Usage of the temperature sensor is necessary for correct module function. Please follow this instruction during the installation:

? Location and way of sensor installation must ensure perfect thermal contact with sensed

surface - for example, location in the housing, fixed with sleeve or thermally conductive

sealant.

? Sensor must be isolated from the influence of the surrounding air temperature

(eg. by suitable temperature insulation).

? Sensor must be always electrically connected with the module. Module doesn’t work

without connected sensor.

? It is necessary to meet correct electrical polarity of the sensor. This can be ensured by the

connection of the color-coded sensor wires to the same color-coded terminals of the

module. Module doesn’t work with sensor which is wrongly connected!

? Keep cable shield connection of the sensor to the device chassis or the switch box.

? The maximum cable length of the sensor ETS-A is 10m. If you need extend original cable

please follow no current grounding principles to avoid current loops.

? If is cable over 2m long and if is located in environment with electromagnetic interference,

then we recommend to use Anti-EMI ferrite elements with minimum impedance

150 Ohm/100MHz (for example type CF4A, 742 712 21, etc.).

Sensor location:

? Sensor in systems which are used only for cooling should be placed on the coldest part of

the evaporator or on refrigerant return pipe (gas pipe).

? For air exchangers with cooling and heating functions is best sensor location approximately

in the middle of the tube exchanger lenght.

In heat pumps air to water is sensor location dependant on the structural design:

? For plate heat exchanger is suitable placed sensor to his lower part. Right in the middle

between water inlet and liquid refrigerant outlet.

? In the case of the coil heat exchanger which is integrated into storage tank, place sensor

inside the housing in order to reach bottom of the spiral heat exchanger.

USING OF EXTERNAL OUTPUTS:

? Outputs ON, DEF and ERR are a SSR (Solid State Relay) type. It can be used to the

status indication or to power supply the power elements (with regard to the maximum

allowable output current).

Note: In some particular type of relay connected to external outputs, the big inductance of

the coils can cause unreliable feature of these switches. Avoid this incidents, please

use relay with integrated overvoltage protection or integrated rectifier, for example

ELKO EP VS116(308,316)K, TeSys LC7-K06, FINDER coupler 3851 etc.

For purposes of signalization and indication can be also used module ATW-IRU.