Mitsubishi Electric PAR-21MAA Technical Manual page 61

System Name System Diagram
G. Timer operation
Enables control
of start and stop.
* For control by
external timer,
refer to Remote/
local combined
control operation".
H.Interlock opera-
tion with periph-
Lossnay
eral equipment
ventilator
Enables control of
Mitsubishi Lossnay
ventilator by remote
controller.
<Connection with M-NET system>
Power
supply
unit
I.Central control
Central controller, etc.
J.Demand control
Adaptor to input
external demand
signal
Relay box
Remote
Operating panel
K.Rotation
• Weekly timer: In addition to ON/OFF, up to 8
temperature patterns can be set
for each day of the week.
* Only one timer can be selected; the auto off, simple
and weekly timers cannot be combined.
• Simple timer: Start and stop operations can each be
performed once within 72 hours (can
be set in 1-hour increments).
• Auto off timer: Operation is stopped when the preset
time elapses following the start of
operation.
The time can be set from 30 minutes
to 4 hours in 30-minute increments.
* Only one timer can be selected; the simple and auto
off timers cannot be combined.
• Connecting a Lossnay ventilator and an indoor unit
Indoor unit
enables control of interlock/solo ventilation opera-
tion and airflow.
(Only the microcomputer type Lossnay ventilator
Remote
can be used.)
Controller
• Connecting the M-NET connection adapter to outdoor
unit enables connection of MELANS system control-
ler (for M-NET).
Outdoor
unit
• When using A-control operation, the number of
indoor units in a MELANS system is limited to the
number of outdoor units.
Indoor
(Simultaneous twin, triple and quad units are counted
unit
as 1 unit.)
Remote • Number of controlled outdoor units
Controller
Central controller: 50 units
Group remote controller
(PAC-SC30GR): 16 units
• Demand control is available by external input. In
this mode, power consumption is decreased
within the range of usual 0-100%.
Outdoor unit
Indoor unit
• Rotation
Main and sub unit operate alternately according
to the interval of roration setting.
• Back-up
When abnormality occurs while operation, it
changes into operating the backup unit, and
operation is continued.
• 2nd stage cut-in
· Number of operating units is determined
according to the room temperature and set point.
· When room temperature becomes higher than set
point, standby unit starts.(2 units operation)
· When room temperature falls below set point
-4°C, standby unit stops.(1 unit operation)
Features
Parts Required in Addition to Standard System
Components (Indoor/Outdoor Units, Remote Controller)
MA Remote controller
(PAR-21MAA)
M-NET adapter (Option PARTS)
Central controller
(G-50A)
Group remote controller
(PAC-SC30GR), etc.
Adapter to input external
demand signals. (PAC-SC36NA)
Relay box
(Part to be provided at your site )
Remote operating panel
(Part to be provided at your site)
• This function is available when
only 2 indoor units are
connected to each PUHZ type
outdoor unit.
Application model
Indoor unit
PLA-RP BA2/BA#2.UK
•
PCA-RP GA(2)#1/HA#1
•
PKA-RP GAL#1/FAL(2)#1
•
PSA-RP GA#1
•
PEAD-RP EA(2)#1/GA#1
•
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