Mitsubishi Electric PAC-SC30GRA Installation Manual
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Mitsubishi Electric PAC-SC30GRA Installation Manual

Mitsubishi Electric PAC-SC30GRA Installation Manual

Building air conditioning control system group remote controller
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WT02948X01
GB
Building Air Conditioning Control System
Group Remote Controller
Installation Manual
This installation manual contains only the description of how to install the Group Remote Controller PAC-SC30GRA. For
information about how to wire and how to install air conditioning units, see the installation manual for them.
For your safety, first be sure to read
Controller PAC-SC30GRA correctly.
1
Safety Precautions
The following two symbols are used to denote dangers that may be caused by incorrect use and their degree:
WARNING
This symbol denotes what could lead to serious injury or death if you misuse the PAC-SC30GRA.
CAUTION
This symbol denotes what could lead to a personal injury or damage to your property if you misuse the PAC-SC30GRA.
After reading this installation manual, keep it in a place where the final user can see it anytime he or she wants to it.
When someone moves, repairs or uses the PAC-SC30GRA, make sure that this manual is forwarded to the final user.
Ask your dealer or technical representative to install the
unit.
Any deficiency caused by your own installation may result in
an electric shock or fire.
Install in a place which is strong enough to withstand
the weight of the PAC-SC30GRA.
Any lack of strength may cause the PAC-SC30GRA to fall
down, resulting in personal injury.
Firmly connect the wiring using the specified cables.
Carefully check that the cables do not exert any force
on the terminals.
Improper wiring connections may produce heat and possi-
bly a fire.
Never modify or repair the PAC-SC30GRA by yourself.
Any deficiency caused by your modification or repair may
result in an electric shock or fire.
Consult with your dealer about repairs.
Do not install in any place exposed to flammable gas
leakage.
Flammable gases accumulated around the body of PAC-
SC30GRA may cause an explosion.
Do not use in any special environment.
Using in any place exposed to oil (including machine oil),
steam and sulfuric gas may deteriorate the performance sig-
nificantly or give damage to the component parts.
Wire so that it does not receive any tension.
Tension may cause wire breakage, heating or fire.
Completely seal the wire lead-in port with putty etc.
Any dew, moisture, insects entering the unit may cause an
electric shock or a malfunction.
Do not wash with water.
Doing so may cause an electric shock or a malfunction.
Do not install in any place at a temperature of more than
°
40
C or less than 0
Do not install in any steamy place such a bathroom or
kitchen.
Avoid any place where moisture is condensed into dew. Doing
so may cause an electric shock or a malfunction.
" 1 Safety Precautions "
°
C or exposed to direct sunlight.
PAC-SC30GRA
described below thoroughly and then install the Group Remote
WARNING
Ensure that installation work is done correctly follow-
ing this installation manual.
Any deficiency caused by installation may result in an elec-
tric shock or fire.
All electrical work must be performed by a licensed tech-
nician, according to local regulations and the instruc-
tions given in this manual.
Any lack of electric circuit or any deficiency caused by in-
stallation may result in an electric shock or fire.
Do not move and re-install the PAC-SC30GRA yourself.
Any deficiency caused by installation may result in an elec-
tric shock or fire.
Ask your distributor or special vendor for moving and instal-
lation.
To dispose of this product, consult your dealer.
CAUTION
Do not install in any place where acidic or alkaline solu-
tion or special spray are often used.
Doing so may cause an electric shock or malfunction.
Use standard wires in compliance with the current ca-
pacity.
A failure to this may result in an electric leakage, heating or
fire.
Do not touch any PCB (Printed Circuit Board) with your
hands or with tools. Do not allow dust to collect on the
PCB.
Doing so may cause fire or an electric shock.
Do not remove the insulation sheet on the PCB.
Doing so may cause an electric shock.
Do not touch any control button with your wet hands.
Doing so may cause an electric shock or a malfunction.
Do not press any control button using a sharp object.
Doing so may cause an electric shock or a malfunction.
Never contact the power supply with the control wiring
terminals.
Doing so will certainly cause the controller to catch fire.

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Summary of Contents for Mitsubishi Electric PAC-SC30GRA

  • Page 1 CAUTION This symbol denotes what could lead to a personal injury or damage to your property if you misuse the PAC-SC30GRA. After reading this installation manual, keep it in a place where the final user can see it anytime he or she wants to it.
  • Page 2 Confirming the Supplied Parts Upper case Check that the box contains the following parts in addition to Lower case this manual: (1) Group remote controller (with upper and lower case) ....1 (2) Cross recessed pan head screws (M4×30) ........2 (3) Wood screws (4.1×16, for directly hooking to the wall) ....
  • Page 3 Note the following when connecting to central management transmission line (Caution 3) Number of system controllers per system which may Power supply unit model be supplied with power PAC-SC34KUA CAUTION 1. This diagram shows the configuration of transmission wiring, and omits power supply wiring for clarity. 2.
  • Page 4 (4) Set the group remote controller address with the rotary switches. Rotary switch Example : Address 208 Group remote controller upper case CAUTION Addresses between 201 and 250 may be set with the group remote controller. The place of 100 is fixed to “2”.
  • Page 5 (6) Connect this connector on the lower case to the connector CN1 on the upper case. CAUTION • Connect firmly as shown below. The system will not operate unless these connections are made. • After connecting the wiring, ensure that the upper case does not hang off the cord as shown in the diagram below at the right.
  • Page 6 (10) Affix a caution label. A caution label in English is supplied on the back surface of the upper panel. Affix another caution label in the language of a country where you use the Group remote controller over the English one. Connecting Optional parts Connector CN2 •...
  • Page 7 Test Run for Each Group 1 Open the upper panel. 2 Call out the group for which test run is to be run using the A [GROUP] switch. Example : Group 5 Call up Group 5 with the A [GROUP] CENTRALLY CONTROLLED ˚C CHECK...
  • Page 8 • After the B [TEST RUN] switch has been pressed twice in succession the and time remaining display changes from flashing to lit continuously (The overall status lamp lights up). The and group select display flash TEST RUN during test run. •...
  • Page 9 Mitsubishi Electric Building Air Conditioning Control System Group remote controller PAC-SC30GRA ON/OFF CENTRALLY CONTROLLED ˚C CHECK ADDRESS GROUP FILTER ˚C CHECK MODE TEST RUN COLLECTIVE GROUP NOT AVAILABLE INSTRUCTION BOOK Carefully read this book before use. It is recommended to safe keep this book for future reference.

  • Page 10: Table Of Contents

    CONTENTS Page 1. Safety precautions ....................2 Symbols and Terms ..................2 Specific Precautions ..................3 2. Functions ......................4 3. The names of indicators and their functions ............6 4. Operations ......................8 4-1. Operation settings by group ................ 8 4-2.

  • Page 11: Specific Precautions

    Do not use the controller for special applications. • This product is designed for use with the MITSUBISHI ELECTRIC BUILDING AIR CONDITIONING CONTROL SYSTEM. Do not use the system for other air condition management operation or applications. It may cause malfunctions.

  • Page 12: Functions

    2. Functions • This unit can control a maximum of 16 air conditioner units. The operation listed below are also possible. <List of group remote controller functions> Item Specification ON/OFF ON/OFF operations for the collective or each group. Operation mode Switches between cool/dry/fan/auto/heat for the collective or each group.
  • Page 13 PAC-SC30GRA Unit Unit When using a system consisting only of PAC- When using a system where PAC-SC30GRA is SC30GRA. controller by a different system controller. PAC-SC30GRA is set as the master system PAC-SC30GRA is set as the slave system controller.

  • Page 14: The Names Of Indicators And Their Functions

    FILTER CHECK GROUP TEST RUN GROUP REMOTE CONTROLLER PAC-SC30GRA A COLLECTIVE SETTINGS/INDIVIDUAL GROUP J TIMER OPERATION DISPLAY: SETTINGS DISPLAY: Displayed when a PROGRAM TIMER (sold separately) COLLECTIVE is displayed when entering the same is installed and the TIMER MODE is set.
  • Page 15 ON/OFF CENTRALLY CONTROLLED ˚C GROUP FILTER ˚C COLLECTIVE GROUP NOT AVAILABLE 1 OPERATION MODE SWITCH: 9 CHECK/TEST RUN SWITCH: Used to switch between Cool/Dry/Fan/Auto/Heat. Used only during inspections and test run operations. 2 TEMPERATURE SETTING SWITCH: Not to be used during normal operations. Used for changing the temperature setting.

  • Page 16: Operations

    CHECK GROUP TEST RUN GROUP REMOTE CONTROLLER PAC-SC30GRA (1) With the cover closed: 1 The start and stop functions of the air conditioners for each group can be controlled using the ON/OFF switch by group. (2) With the cover open: 1 Use the GROUP select switch to call the group that you want to set.

  • Page 17: Collective Operation Settings

    TEST RUN GROUP REMOTE CONTROLLER PAC-SC30GRA (1) With the cover closed: 1 The start and stop functions of the air conditioners for all groups can be controlled using the collective ON/OFF switch. (This collective ON/OFF function can be operated when the UPPER PANEL is open as well.)

  • Page 18: Adjusting Each Function

    4-3. Adjusting each function The following section describes the operation of the switches for the OPERATION MODE, TEMPERA- TURE SETTING, FAN SPEED, AIR DIRECTION SETTING, HORIZONTAL BLOW, VENTILATION SETTING and EXTERNAL TIMER SETTINGS. If your air conditioner is not equipped with FAN SPEED, AIR DIRECTION SETTING, HORIZONTAL BLOW, VENTILATION SETTING and EXTERNAL TIMER SETTINGS or a PROGRAM TIMER (sold separately), the “NOT AVAILABLE”...
  • Page 19 (4) Horizontal blow 1 Press the horizontal blow switch. • The horizontal blow are operated and stopped whenever the horizontal blow switch is pressed. [Display example] <When the horizontal blow <When the horizontal blow are operating> are not operating> ↔ Interchangeable display No display (5) Air direction...

  • Page 20: Filter Sign Reset

    5. Filter sign reset • The will blink to indicate that the filter requires cleaning. The group for which the filter FILTER requires cleaning will blink on the group selection display at the same time. (1) Filter sign reset 1 Select the appropriate group for which you want to reset the filter sign using the GROUP select switch.

  • Page 21: Initial Settings

    7. Initial settings 7-1. Setting the master controller It is necessary to enter initial settings. The initial settings include the following: 7-1-1. Group settings 7-1-3. Canceling the initial setting mode 7-1-2. Interlocked setting 7-1-4. Collective deletion In order to perform these operations, first of all display the initial settings on the remote controller’s screen.

  • Page 22: Group Settings

    When the group remote controller address is 201, the controlled groups are between groups 1 and 8. When the group remote controller address is 209, the controlled groups are between groups 9 and 16. Address of PAC-SC30GRA Controlled group number 1 to 8...
  • Page 23 (2) Once the group has been selected, the unit with the smallest address number will be displayed if registered units exist for that particular group. The unit type will also be displayed after two seconds. Details displayed: Temperature setting display area: Address number Room temperature display area: Unit type Example: When groups 1 and 2 are not registered and an indoor unit with the address 005 is...
  • Page 24 2 Select the unit (1) Select the unit to be registered in the group selected with 1. • The address numbers will change in the sequence shown below within the temperature setting display area whenever the temperature setting switch is pressed. “...
  • Page 25 4 To delete units from the group (1) Perform the procedure explained in 1 and 2 to call out the unit address number that is to be deleted. • The unit registered in the group will be deleted if the fan speed switch is pressed twice at this time.

  • Page 26: Interlocked Setting

    7-1-2. Interlocked setting • Sets each group for Interlocked operations with Interlocked unit. • Perform the settings for the Interlocked unit after the groups have been set. Interlocked unit cannot be set up for groups that do not have any units registered. 1 Call out the Interlocked unit setting screen ↓...
  • Page 27 (3) Once the group has been selected, the unit with the smallest address number will be displayed if registered units exist for that particular group. Details displayed: Temperature setting display area: Address number Room temperature display area: unit type Example: When group 1 is not registered and an indoor unit with the address 003 is registered in group 2.
  • Page 28 5 To register interlocked units (1) Press the TEST RUN switch with the details explained in 4 displayed to register the interlocked unit into the group. • The following will be displayed if registration was performed normally. CENTRALLY CONTROLLED ˚C CHECK ADDRESS GROUP...
  • Page 29 (2) The interlocked unit setting will be deleted if the fan speed switch is pressed twice at this time. CENTRALLY CONTROLLED ˚C CHECK ADDRESS GROUP FILTER ˚C CHECK MODE TEST RUN COLLECTIVE GROUP NOT AVAILABLE The unit type display will disappear and Alternately be replaced with [ ] once this...
  • Page 30 • Press the ventilation setting switch with the above displayed to confirm each of the other units into which link settings have been established for the interlocked unit. Example: When interlocked unit 020 is interlocked into the following units: Indoor unit: 001 (group 1) 002 (group 2) The contents of the retrieval will be displayed as follows:...

  • Page 31: Canceling The Initial Setting Mode

    7-1-3. Canceling the initial setting mode • Press the FILTER sign reset switch and horizontal blow switch simultaneously (for at least two seconds) when the group settings and linked equipment settings have been completed. • This will store the group setting information and perform system start-up communications. Once this has been completed, the user operation screen will be displayed.

  • Page 32: Functions During Start-Up And Servicing

    8. Functions during start-up and servicing 8-1. Self-diagnosis • It is possible to check past errors (error codes) stored in the indoor units. 1 Group selection ↓ 2 Calling out the self-diagnosis screen ↓ 3 Selecting the indoor unit address number for which self-diagnosis is to be performed ↓...
  • Page 33 • If the indoor unit address number was selected with the temperature setting switch, it is possible to select address numbers of the indoor units registered outside of the group selected in 1. The display will change when the temperature setting switch or the external timer switch are pressed.

  • Page 34: Malfunction History Monitoring Function

    8-2. Malfunction history monitoring function • It is possible to monitor up to ten of the most recent malfunction histories. • The address of the unit in which the malfunction occurred and the error code will be displayed. • This information is not deleted when the power supply is switched off. It can only be deleted by performing the malfunction history reset procedure.

  • Page 35: Specifications

    3 Retrieving malfunction histories • The most recent error code will be displayed sequentially whenever the external timer switch is pressed. (A maximum of 10 errors can be displayed.) 4 Resetting the malfunction history • Press the operation mode switch twice to reset all of the malfunction history information stored within the remote controller.

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