Mitsubishi Electric PURY-WP-YJM-A Data Book page 142

3. System remote controller
3-12. Transmission booster [PAC-SF46EPA]
The Outdoor unit supplies transmission power 30VDC for the indoor-outdoor transmission line at its connector TB3 and TB7.
The power is consumed by the Indoor unit, ME remote controller, Timers and System controllers.When the total quantity of
Indoor units, ME remote controller, Timers, and System controllers is over 40, or when transmission power supply is not
enough, the transmission booster PAC-SF46EPA should be designed into the air-conditioner system to ensure the system
communication. Indoor units sized P200 and 250 are counted as 2 units.
1. Designing PAC-SF46EPA into an air-conditioner system.
Taking the power consumption of Indoor unit sized P15-P140 as 1, the equivalent power consumption or supply of others are
listed at Table 1 and Table 2.
HBC
Indoor Indoor unit
controller
Sized P15-P140 Sized CMB
P200, P250
1 7 2
*RC : Remote Controller
Transmission Booster Power supply unit
PAC-SF46EPA PAC-SC51KUA
25
*If PAC-SC51KUA is used to supply power at TB7 side, no power supply need from Outdoor unit at TB7, Connector TB3 itself will therefore have 32.
Transmission booster PAC-SF46EPA has equivalent transmission power 25.
With the equivalent power consumption values in Table 1 and Table 2, PAC-SF46EPA can be designed into the airconditioner
system to ensure proper system communication according to A, B, C.
(A) Firstly, count from TB3 at TB3 side the total quantity of Indoor units, ME remote controller, and System controllers.
If the total quantity reaches 40, a PAC-SF46EPA should be set. In this case, Indoor units sized P200 and 250
are counted as 2 indoor units, but MA remote controller(s) and PZ-60DR-E are NOT counted.
(B) Secondly, count from TB7 side to TB3 side the total transmission power consumption. If the total power consumption
reaches 32, a PAC-SF46EPA should be set. Yet, if a
such as PAC-YG50ECA, is used to supply power at TB7 side, count from TB3 side only.
(C) Thirdly, count from TB7 at TB7 side the total transmission power consumption, If the total power consumption reach-
es 6, a PAC-SF46EPA should be set.
External dimension
Table 1 The equivalent power consumption
MA RC. LOSSNAY ME Remote Contr.
PWFY
PAR-31MAA
P100VM P100VM P200VM
PAR-21MAA
-E-BU -E1-AU -E1-AU
PAC-YT52CRA
PAR-FA32MA
LGH-RX-E
PZ-60DR-E
6 1 5
Table 2 The equivalent power supply
Expansion controller BM ADAPTER
PAC-YG50ECA BAC-HD150
5 6
360[14-3/16]
240[9-15/32]
T
CONTROLLER
System Contr.
PAR-F27MEA AG-150A AT-50A
PAC-SE51CRA
PZ-52SF-E
PAC-YG60MCA
PAC-YG66DCA
PAC-YG63MCA
0 1/4 1/2
System Controller
GB-50ADA Connector TB3 and TB7 total *
6 6
PAC-SC51KUA or another controller with a built-in power supply,
ON/OFF Contr.
MN Converter
PAC-YT40ANRA CMS CMS
-MNF-B -MNG-E
4 1 1/2
2
Outdoor unit Outdoor unit
Connector TB7 only
32
Unit:mm [in.]
Outdoor unit
TB7
power
consumption
0
6
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