How To Install - Mitsubishi Electric PAC-SC30GRA Manuel D'installation

Note the following when connecting to central management transmission line (Caution 3)
Number of system controllers per system which may
be supplied with power
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).
Group remote controller
Example: The following applies for 2 group remote controllers and 1 central controller.
2 × 0.5 + 1 × 1 = 2
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.
Remote controller cord
(see (3) below)
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.
1~5
Capacity coefficient
0.5
Number of system controllers which may be supplied with power
Number of central controllers × capacity coefficient
Group remote controllers × capacity coefficient
Wood screws
Connect this to CN1
on upper case (see
(6) below).
No polarity
Remote controller cord procured locally.
Power supply unit model
Central controller
1
Switch box
Seal this remote controller cord lead-in with putty or silicon rubber.
When Installing the Switch Box
PAC-SC34KUA
External size of Extra space around
remote controller remote controller
30
46
Installation pitch
Remote controller cord
(see (3) below)
Connect this to CN1
on upper case
(see (6) below).
A. 1 B. 2
Terminal block
30
Cross recessed
pan head screws
(see (9) below)