Mitsubishi Electric PUHY-RP-Y(S)JM-B Data Book page 214

2. M-NET control
2-4-3. System examples
Factory setting
Original switch setting of the outdoors, indoors, controllers, LMAP and BM ADAPTER at shipment is as follows.
Outdoor unit
Indoor unit
ME remote controller
LMAP
BM ADAPTER
Setting at the site
DipSW2-1(Outdoor)
DipSW1-2(LMAP)
CN40/CN41
2-4-3-1. MA remote controller, Single-refrigerant-system, No System Controller
<Three outdoor units>
PUHY
OC OS1
00 00
CN40 CN41 CN40 CN41
DipSW2-1 DipSW2-1
OFF OFF
TB3 TB3
*1 For Wireless R/C and Signal receiver unit (SRU), channel 1, 2 and 3 are selectable and should be set to same channel.
NOTE:
1. Outdoor units OC, OS1 and OS2 in one refrigerant circuit system are automatically detected.
OC, OS1 and OS2 are ranked in descending order of capacity. If units are the same capacity, they are ranked in ascending order
of their address.
2. No address setting is needed.
3. For a system having more than 32 indoor unit (P15-P140), confirm the need of Booster at 2-3 "System configuration
restrictions".
: Address: 00, CN41: U (Jumper), DipSW2-1: OFF
: Address: 00
: Address: 101
: Address: 247, CN41: U (Jumper), DipSW1-2: OFF
: Address: 00
: When the System Controller is used, all the Dip SW2-1 at the outdoor units should be
set to "ON". * Dip SW2-1 remains OFF when only LMAP02-E is used.
: When the LMAP is used together with System Controller, DipSW1-2 at the LMAP should be
set to "ON".
: Change jumper from CN41 to CN 40 at outdoor control board will activate central transmission
power supply to TB7;
(Change jumper at only one outdoor unit when activating the transmission power supply
without using a power supply unit.)
Change jumper from CN41 to CN 40 at LMAP will activate transmission power supply to LMAP
itself;
Power supply unit is recommended to use for a system having more than 1 outdoor unit,
because the central transmission power supply from TB7 of one of outdoor units is risking that
the outdoor unit failure may let down the whole system controller system.
<Two outdoor units>
PUHY
OS2 OC
00 00
CN40 CN41 CN40 CN41
DipSW2-1 DipSW2-1
OFF OFF
TB3 TB3 TB3
Group 1
Indoor unit
00
TB5 TB15 TB5
1*
SRU
1*
Wireless R/C
SYSTEM DESIGN
<One outdoor unit>
PUHY
OS1 OC
00 00
CN40 CN41 CN40 CN41
DipSW2-1 DipSW2-1
OFF OFF
TB3
Group 2
00 00
TB15 TB5 TB15
MA R/C
Group 3 Group 4
00 00
TB5 TB15 TB5 TB15
MA R/C MA R/C
(Main)
MA R/C
(Sub)
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