Mitsubishi Electric PAC-SC30GRA Installation Manual

GB WT02948X01
Building Air Conditioning Control System
Group Remote Controller PAC-SC30GRA
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 " 1 Safety Precautions " described below thoroughly and then install the Group Remote
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.
WARNING
Ask your dealer or technical representative to install the Ensure that installation work is done correctly follow-
unit. ing this installation manual.
Any deficiency caused by your own installation may result in Any deficiency caused by installation may result in an elec-
an electric shock or fire. tric shock or fire.
Install in a place which is strong enough to withstand All electrical work must be performed by a licensed tech-
the weight of the PAC-SC30GRA. nician, according to local regulations and the instruc-
Any lack of strength may cause the PAC-SC30GRA to fall tions given in this manual.
down, resulting in personal injury. Any lack of electric circuit or any deficiency caused by in-
stallation may result in an electric shock or fire.
Firmly connect the wiring using the specified cables.
Carefully check that the cables do not exert any force Do not move and re-install the PAC-SC30GRA yourself.
on the terminals. Any deficiency caused by installation may result in an elec-
Improper wiring connections may produce heat and possi- tric shock or fire.
bly a fire. Ask your distributor or special vendor for moving and instal-
lation.
Never modify or repair the PAC-SC30GRA by yourself.
Any deficiency caused by your modification or repair may To dispose of this product, consult your dealer.
result in an electric shock or fire.
Consult with your dealer about repairs.
CAUTION
Do not install in any place exposed to flammable gas Do not install in any place where acidic or alkaline solu-
leakage. tion or special spray are often used.
Flammable gases accumulated around the body of PAC- Doing so may cause an electric shock or malfunction.
SC30GRA may cause an explosion.
Use standard wires in compliance with the current ca-
Do not use in any special environment. pacity.
Using in any place exposed to oil (including machine oil), A failure to this may result in an electric leakage, heating or
steam and sulfuric gas may deteriorate the performance sig- fire.
nificantly or give damage to the component parts.
Do not touch any PCB (Printed Circuit Board) with your
Wire so that it does not receive any tension. hands or with tools. Do not allow dust to collect on the
Tension may cause wire breakage, heating or fire. PCB.
Doing so may cause fire or an electric shock.
Completely seal the wire lead-in port with putty etc.
Any dew, moisture, insects entering the unit may cause an Do not remove the insulation sheet on the PCB.
electric shock or a malfunction. Doing so may cause an electric shock.
Do not wash with water. Do not touch any control button with your wet hands.
Doing so may cause an electric shock or a malfunction. Doing so may cause an electric shock or a malfunction.
Do not install in any place at a temperature of more than Do not press any control button using a sharp object.
° °
40 C or less than 0 C or exposed to direct sunlight. Doing so may cause an electric shock or a malfunction.
Do not install in any steamy place such a bathroom or Never contact the power supply with the control wiring
kitchen. terminals.
Avoid any place where moisture is condensed into dew. Doing Doing so will certainly cause the controller to catch fire.
so may cause an electric shock or a malfunction.
2 Confirming the Supplied Parts
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) ................ 2
(4) Room label ................................................................... 1 (2 labels)
Use a maximum of 1.25mm
(5) Label covers ................................................................................. 2
wiring. 0.75mm 2 cable is recommended for ease of use.
(6) Caution label (in 10 languages) .................................................... 1
(7) Instruction book ............................................................................ 2
NOTE: The remote controller cord is supplied on site.
Use a electric cable in accordance with the following specifications.
Electric cable specifications (CVV or CVVS)
With CVVS, be sure to insulate the cable shield so that it does not contact the terminal block.
2
The 1.25mm cable is for use as an extension.
2
• Up to 10m .............. 0.75mm twin-core cable
• Longer than 10m .... 1.25mm 2 twin-core cable (extension cord)
3 System Configuration
Central management transmission line
Indoor and outdoor transmission line M-NET remote controller Indoor unit
Interlocked with ventilation equipment
[59]
[15] [14] [13] [12] [11] [10] [09]
TB7 TB3
TB5 TB5 TB5 TB5 TB5 TB5 TB5
[(1)14] [(1)64] [(1)12] [(1)10]
Group 14 Group 13 Group 12 Group 11 Group 10
[(2)10] The place of 100 is fixed to "1".
The place of 100 is fixed to "2".
[51]
[01] [02] [03] [04] [05] [06] [07]
TB7 TB3
TB5 TB5 TB5 TB5 TB5 TB5 TB5
[(1)01] [(1)02] [(1)04] [(1)05] [(1)07]
[(2)01]
Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7
Central controller Power supply unit
Model: MJ-103MTRA Model: PAC-SC34KUA
M-NET model address setup (address duplication not possible)
Address setup
Indoor unit / Interlocked unit Any address within the range specified at right.
The smallest address of indoor unit in same
Outdoor unit
refrigerant system + 50
Remote controller Any address within the range specified at right.
Group remote controller The smallest group No. to be managed + 200
NOTE: The only indoor unit this device can be used to operate is an M-NET control indoor unit. It will not operate
a K control indoor unit, even with a K transmission converter (PAC-SC25KAA).
Note the following when connecting to central management transmission line (Caution 3)
Number of system controllers per system which may
be supplied with power
1~5
CAUTION
1. This diagram shows the configuration of transmission wiring, and omits power supply wiring for clarity.
2. Establish one shield ground for M transmission wiring within the system.
3. The number of system controllers which may be supplied with power are found by multiplying the given num-
ber by the appropriate capacity coefficient in the following table (decimal fractions are rounded up).
Capacity coefficient
Group remote controller Central controller
0.5 1
Example: The following applies for 2 group remote controllers and 1 central controller.
2 × 0.5 + 1 × 1 = 2
Number of system controllers which may be supplied with power
Number of central controllers × capacity coefficient
Group remote controllers × capacity coefficient
4. The eight groups are allocated automatically (group remote controller setup address
-200~group remote controller setup address -200+7 is the management group).
Examples: Group 1~8 is the management group when the group remote controller setup address is 201.
Group 9~16 is the management group when the group remote controller setup address is 209.
5. As current consumption is twice that with remote controller when this equipment is connected to indoor or
outdoor transmission wiring, assume two remote controllers for each of these units when calculating connec-
tions.
4 How To Install
(1) Choose a location in which to install the group remote controller (switch box) in accordance with
the following requirements:
1 The space as shown in the diagram at right is required whether
the controller is installed on the wall or in the switch box (except
when used with the program timer (PAC-SC32PTA)).
2 Procure the following parts locally.
Switch box for two units
Thin-copper wiring pipe
Locknut and bushing
(2) Attach the lower case to the wall or the switch box.
NOTE: Over-tightening the screws may result in deformation or cracking of the lower case.
Switch box
Remote controller cord
(see (3) below)
Wood screws
Connect this to CN1
on upper case (see
(6) below).
Seal this remote controller cord lead-in with putty or silicon rubber.
When Installing Directly on the Wall
(3) Connect the remote controller cord to the terminal block on the lower case.
Install wiring correctly in accordance with the diagram at right.
No polarity
Remote controller cord procured locally.
Upper case
(4) Set the group remote controller address with the rotary switches.
2 cable for remote controller Rotary switch
10
1
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".
Rotary switch setting Address
Group remote controller
01~50 201~250
• The rotary switch is set to 01 when shipped from the factory.
Ventilation
equipment (5) When used in conjunction with the master system controller (centralized controller), set the group
[16] remote controller to "Slave" with the switch as shown in the diagram below.
(Interlocked unit)
• The switch is set to "Master" when shipped from the factory.
Master
Slave
[08]
TB5
Group remote controller upper case
[(1)08]
Group 8
Address
1~50
51~100
101~200
201~250
(6) Connect this connector on the lower case to the connector CN1 on the upper case.
Power supply unit model
CAUTION • Connect firmly as shown below. The system will not operate unless these connections are
made.
PAC-SC34KUA
• After connecting the wiring, ensure that the upper case does not hang off the cord as shown in
the diagram below at the right. This may result in a break in the cord, and thus cause problems
with operation.
• Always pass the cord through the hook to hold it in place.
Connect this to
Hook
connector CN1
Remote controller lower case
(7) Fitting the upper case.
First hook the upper case to the two upper claws
and then fit it as shown at right.
CAUTION
• Press the case until it snaps shut.
• A protective sheet has been affixed to the control panel.
Remove it before starting.
External size of Extra space around
remote controller remote controller
To remove the upper case, insert a minus screwdriver
into one of the open slots and move it in the direction of
30 30
the arrow as shown in the diagram at right.
46
CAUTION
Do not turn the screwdriver while it is inserted into the
open slot. Doing so can result in damage to the claws.
(8) Wiring hole for fitting directly onto the wall.
Installation pitch
• Cut out the thin-wall portion of the upper case (shaded area) using
a knife or nipper.
• Take out the remote controller cord connected to the terminal block
via this portion.
Remote controller cord
Cross recessed
pan head screws
(see (3) below) (9) Seal the remote controller cord lead-in with putty in order to prevent possible entry of dew, water
droplets and other insects.
• When fitting directly to the wall as in (2), seal the cut-
out in the upper case with putty.
• When cutting a hole in the wall for the remote con-
Connect this to CN1
troller cord (ie when the remote controller cord exits
on upper case
(see (6) below). from the rear of the remote controller), seal this hole
in the same way.
Seal with putty
(see (9) below)
When Installing the Switch Box
Cord Taken Through Top of
A. 1 B. 2 Remote Controller
Cord Taken Through Rear of
Remote Controller
Terminal block
When Fitting Directly on the Wall
(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.
5 Connecting Optional parts
• When connecting a program timer connect a 5-core cable to connector
CN2 (timer connector) on the upper case (a 5-core cable is supplied with
the program timer).
• Cut out the thin-wall portion to take the cable.
• When fitting directly onto the wall, fit the group remote controller on the left
of the program timer to facilitate wiring. If you anticipate installing more
program timers, leave the appropriate space to the left of the remote con-
troller. See the program timer installation manual for installation details.
6 Initial Settings
• Initial settings is necessary before test run. Consult the user's manual for details of initial settings.
7 Test Run
• Test run is performed individually for each group, or for all groups.
Diagram A
CENTRALLY CONTROLLED
˚C
CHECK ADDRESS ON OFF
GROUP FILTER
˚C CHECK MODE
TEST RUN
COLLECTIVE
GROUP NOT AVAILABLE
D
TEMP. ON/OFF
GROUP
I
E A F
Procedure Switch layout is as shown in Diagram A.
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]
Call up Group 5 with the A [GROUP]
3 Begin test run.
• Test run begins when the B [TEST RUN] switch is pressed twice in succession.
Connector CN1
Indoor unit address
• The address of the indoor unit is displayed on the temperature setup display (3 digits).
Remote controller upper case
• Displays the piping temperature (-99°C~99°C) for the indoor unit corresponding to the address displayed on the
room temperature display.
• The address of indoor units registered in that group may be changed with the C [External Timer]
test run begins, the lowest address registered in the group is displayed, the address being increased each time the
C [External Timer]
• The duration of test run as two hours, and is counted down in one minute intervals, until test run is terminated at
0:00 and test run is halted.
•
TEST RUN
• D [Operation Mode]
and H [Ventilation Setting]
• Press the I
• Test run is disabled during central management with ON/OFF prohibition.
4 Close the upper panel (setup complete).
* The screen continues when setting up individual groups. The collective operation monitor screen appears when
setting up collectively. Ensure that the upper panel is fully closed.
5 Test run complete.
The test run setup in 3 is completed after two hours and operation is then halted (the test run display is extinguished).
• Operation is halted only for the groups for which test run has been performed.
• Operation is halted for all groups in a batch.
Test run may be halted as follows irrespective of the remaining time (air-conditioning units halted).
• Press the J [Collective ON/OFF] switch • Press the I
switch.
Test run is terminated only for the relevant group when the K [ON/OFF by Group] switch is pressed.
Test Run for All
1 Open the upper panel.
2 Call out the collective operation setting screen using the A A A A A [GROUP]
• When fitting to the switch box, seal the join between
the switch box and the wiring conduit with putty.
Wiring pipe
Lock nut
Wall
3 Begin test run.
• Test run begins when the B [TEST RUN] switch is pressed twice in succession.
Remote controller cord
Switch box
Bushing
Remote controller cords
Seal with putty
Seal with putty
• After the B [TEST RUN] switch has been pressed twice in succession the
from flashing to lit continuously (The overall status lamp lights up). The
during test run.
When Using the Switch Box
• The smallest address of indoor unit of the smallest number group is displayed on the collective operation setting
screen (above).
• To check the liquid pipe temperature for the indoor units registered in each group, select the indoor unit for which
the liquid pipe temperature is to be checked using the C [External Timer]
•
TEST RUN
4 Close the upper panel (setup complete).
* The screen continues when setting up individual groups. The collective operation monitor screen appears when
setting up collectively. Ensure that the upper panel is fully closed.
5 Test run complete.
The test run setup in 3 is completed after two hours and operation is then halted (the test run display is extinguished).
• Operation is halted only for the groups for which test run has been performed.
• Operation is halted for all groups in a batch.
Test run may be halted as follows irrespective of the remaining time (air-conditioning units halted).
• Press the J [Collective ON/OFF] switch • Press the I
Connector CN2
switch.
Test run is terminated only for the relevant group when the K [ON/OFF by Group] switch is pressed.
Thin-wall portion
Diagram B
J
ON/OFF
ON/OFF
CENTRALLY CONTROLLED
˚C
CHECK ADDRESS ON OFF
GROUP FILTER
˚C CHECK MODE
G
TEST RUN
COLLECTIVE
GROUP NOT AVAILABLE
H
FILTER
CHECK
K
TEST RUN
c B
switch. Example : Group 5
.
CENTRALLY CONTROLLED
˚C
CHECK ADDRESS ON OFF
GROUP FILTER
˚C
CHECK MODE
TEST RUN
COLLECTIVE
GROUP NOT AVAILABLE
CENTRALLY CONTROLLED
˚C
CHECK ADDRESS ON OFF
GROUP FILTER
˚C
CHECK MODE
TEST RUN
COLLECTIVE
GROUP NOT AVAILABLE
Remaining time Indoor unit piping Test run display
temperature
switch. When
switch is pressed.
and the group select icon flash during test run.
, E [Fan Speed Adjustment] , F [Horizontal Blow] , G [Air Direction]
may be used during test run.
switch to halt test run.
ON/OFF
switch • Press the K [ON/OFF by Group]
ON/OFF
switch.
CENTRALLY CONTROLLED
˚C
CHECK ADDRESS ON OFF
* Collective operation
GROUP FILTER
˚C setting screen
CHECK MODE
TEST RUN
COLLECTIVE
GROUP NOT AVAILABLE
CENTRALLY CONTROLLED
˚C
CHECK ADDRESS ON OFF
GROUP FILTER
˚C
CHECK MODE
TEST RUN
COLLECTIVE
GROUP NOT AVAILABLE
and time remaining display changes
ON
and group select display flash
TEST RUN
switch.
and all select icons for the registered groups flash during test run.
switch • Press the K [ON/OFF by Group]
ON/OFF