Wiring Examples - Mitsubishi Electric CITY MULTI PQHY-P-TLMU-A1 Manual De Instalación

2 Wiring examples

Controller name, symbol and maximum number of controllers.
Name
Heat source unit Main unit
Sub unit
BC controller Main unit
Sub unit
Indoor unit Indoor unit controller
Remote controller
Other Transmission booster unit
Example of a group operation system with multiple heat source units (Shielding wires and address setting are
necessary.)
<Examples of transmission cable wiring>
[Fig. 11.3.1] [Fig. 11.3.3] [Fig. 11.3.4] [Fig. 11.3.6] ME Remote Controller (P.16 - 18)
[Fig. 11.3.2] [Fig. 11.3.5] MA Remote Controller (P.16, 18)
<A> Change the jumper connector from CN41 to CN40
<B> SW5-1:ON
<C> Keep the jumper connector on CN41
A Group 1 B Group 3
For [Fig. 11.3.1] [Fig. 11.3.2][Fig. 11.3.4][Fig. 11.3.5]
heat source unit in the system and connect it to CN40.
*2: If a system controller is used, set SW5-1 on all of the heat source units to ON.
[Fig. 11.3.3] [Fig. 11.3.6] Combination of heat source units and transmission booster unit (P.17, 18)
[Fig. 11.3.1], [Fig. 11.3.2] or [Fig. 11.3.4], [Fig. 11.3.5] or DATA BOOK.
<Wiring Method and Address Settings>
b. Use feed wiring to connect terminals M1 and M2 and the ground terminal
OC and OS in the same refrigerant system, connect TB7 to TB7.
e. When the power supply unit is not installed on the central control transmission line, change the jumper connector on the control board from CN41 to CN40 on only
one heat source unit in the system.
CN40 in the step above to the earth terminal
g. Set the address setting switch as follows.
* To set the heat source unit address to 100, the heat source address setting switch must be set to 50.
Unit
MA R/C
Code
OC
OS
BC
BS
IC
RC
RP
C Group 5 D Shielded wire
in the electrical component box.
Range
01 to 50 Use the most recent address within the same group of indoor units. With an R2 system with sub BC
controllers, set the indoor unit address in the following order:
1 Indoor units connected to the main BC controller
2 Indoor units connected to BC sub controller 1
3 Indoor units connected to BC sub controller 2
Set the indoor unit addresses so that all the addresses of 1 are smaller than those of 2, and that all
the addresses of 2 are smaller than those of 3.
01 to 50
51 to 100 Set the addresses of the heat source units in the same refrigerant system in the order of sequence.
51 to 100 Heat source unit address plus 1. When the set indoor unit address duplicates the address of another
indoor unit, set the new address to a vacant address within the set range.
51 to 100
101 to 150
151 to 200
–
Possible unit connections
One controller for one OC
Zero, one or two controllers for one OC
2 units maximum per group
E Sub remote controller
Setting Method
35