Connection Procedure - Panasonic PZH2 Einbauanleitung

CONNECTION FOR DEMAND AND FORCED STOP

1. CONNECTION PROCEDURE

Be sure to always turn the power off first when setting up the wire and cable connections.
Failure to do so may lead to electric shock or unit failure.
Forced Stop connection for the next system
Outdoor unit
Forced Stop input (Connect to
fire alarm device, etc.)
Demand controller connection
(field supply)
(Functional earthing) (Functional earthing)
The demand terminal set up is shown in the following illustration.
Demand controller connection
Forced Stop input
Connection for next system outdoor unit
(Forced Stop input connection)
LV3 LV2 LV1 COM 1 2 1 2
Forced To the next
DEMAND
Stop System
(Functional earthing) (Functional earthing)
Use a shielded cable for the cable connection.
●
For the shield part of the shielded cable twist the end out, crimp it with a round terminal, and connect it to the functional earthing screw. After crimping it with a round terminal, wrap it
with insulating tape so there are no spaces and adjust it so the shield part does not touch any live parts.
Crimp the round terminal
Wrap it well with insulating tape so there are no spaces.
Shield part
Be sure that the shield part of the shielded cable does not touch the terminal block or any live parts.
CAUTION
Failure to do so may lead to electric shock or fire.
WHEN CONNECTING THE DEMAND CONTROLLER INPUT
It is possible to choose various demand levels.
See the table shown on the right.
LV3 LV2 LV1 COM 1 2 1 2
DEMAND Forced To the next
Stop System
(Functional earthing)
Terminal block
WHEN CONNECTION TO THE FORCED STOP INPUT
With the Forced Stop input, it is possible to override the air conditioning operation to force a stop if a signal is received from a fire alarm device, etc.
01_320585_Eng_pg 2.indd 5
Connect the wiring (2-wire) to points 1 and 2 on the left side of the terminal block.
The shield part of the shielded cable is connected with
Secure the wiring with the cord clamp located on the lower part of the terminal block.
LV3 LV2 LV1 COM 1 2 1 2
Forced To the next
DEMAND
Stop System
(Functional earthing)
WHEN CONNECTING TO THE NEXT SYSTEM UNIT
Forced Stop input can be transferred to the next system unit.
●
When using the Forced Stop input, connect the wiring to the terminal points 1 and 2 on the right side of the lower part of the terminal block.
●
The maximum wire/cable length is 100 m.
●
The demand control cannot be transferred to the next system unit.
●
When transferring to the next system, the maximum number of connecting units is 30.
●
1. Connecting the wining to the lower part of the terminal block.
When transferring the Forced Stop input to the next system connect the wiring (2-wire) to the terminal points 1 and 2 at the lower right side of the terminal block.
The shield part of the shielded cable is connected with (functional earthing) under the terminal block.
Secure the wiring with the cord clamp located on the lower part of the terminal block.
2. Connecting the shielded cable to the terminal block for the next system.
For the Forced Stop input, connect the wiring to the terminal points 1 and 2 at the lower right side of the terminal block.
When connecting to the next system be sure to connect to the appropriate terminal point due to the polarity.
Demand control cannot be transferred to the next system
Connection terminal block for next system outdoor unit
LV3 LV2 LV1 COM 1 2 1 2
Forced To the next
DEMAND
Stop System
(Functional earthing) (Functional earthing)
Connecting line to the next system outdoor unit
Cord clamp
The next system
outdoor unit
To the next system outdoor unit
Demand controller connection
(field supply)
Termrial no. for
Description
demand section
LV1 Approx. 75% of rated power input
LV2 Approx. 50% of rated power input
LV3 Compressor off
Connect the wiring (4-wire) to the Demand section (LV1, LV2, LV3, COM) on the terminal block.
The shield part of the shielded cable is connected with (functional earthing) under the terminal block.
Secure the wiring with the cord clamp located on the lower part of the terminal block.
DRED (Demand controller)
Relay contact point: No voltage relay
Current input is DC 24 V 10 mA
LV3 LV2 LV1 COM
(functional earthing) under the terminal block.
Fire alarm device
Relay contact point: No voltage relay
Current input is DC 24 V 2 mA
Use a very small electric current contact point for the relay.
Terminal block
LV3 LV2 LV1 COM 1 2 1 2
Forced To the next
DEMAND
Stop System
(Functional earthing) (Functional earthing)
Next system outdoor unit
To the next system outdoor unit
Be sure to connect to the appropriate terminal point due to the polarity.
2. WIRING PROCEDURE
Follow the wiring procedure below for terminal connection.
(1) Secure and clamp the power and signal lines with the tie, set up close to the valve.
(2) Set the wiring and cables for the power and signal lines to the outdoor unit together, and secure each wire and cable with the tie.
(3) Set up the wiring and cable for the outdoor unit tubing and secure with a tie.
2020/3/26 12:07:13 01_320585_Eng_pg 2.indd 7
Refer to the installation instruction manual provided with the indoor unit for the specifications on the indoor unit installation.
ENGLISH
The English text is the original instructions.
Other languages are translation of original instructions.
1
Secure and clamp the wiring and cable together with power and signal lines using the tie set up close to the valve.
2
Secure and clamp the wiring and cable with the tie (supplied) for the power and signal lines to the outdoor unit.
3
Secure and clamp all wiring and cable together with the indoor/outdoor tubing using the tie (supplied).
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2020/3/26 12:07:15
ACXF60-35881 1
DC0119-10320
Printed in Malaysia