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1-3. Parts list
The package contains the following parts.
1.
AT-50B
2.
Mounting bracket
3.
M4.1 wood screws × 16 (5/8 in)*1 (Use to attach the mounting bracket to a wall.)
4.
M4 Roundhead cross slot screws × 30 (1-3/16 in)*1 (Use to attach the mounting bracket to an electric box.)
5.
M4 roundhead screws with spring washers/washers × 20 (25/32 in)
(Use to attach the mounting bracket to the controller.)*1
6.
Installation Manual (This manual)
7.
Instruction Book
8.
CD-ROM (Instruction Book, Installation Manual)
*1 ISO metric screw thread
1-4. Product specifications
1. Specifications
Power source
Operating conditions
Weight
External dimensions (W x H x D)
Sound Pressure Level
*1 Not for use with a generic DC power supply device. Use the power supply unit for transmission cable (PAC-SC51KUA etc.) by Mitsubishi.
*2 "Power consumption coefficient" is a coefficient to calculate the relative power consumption of the devices that receive power through the M-NET
transmission cable. Refer to *1 in section 1-5. "System diagram".
2. Unit Components and Functions
Front (with the cover on)
Power lamp
Display screen/Touch
panel
1-5. System diagram
1. System configuration
Main SC
Advanced Touch
*1
Controller
Model:
AT-50B [201]
M-NET
Outdoor unit
[051]
TB7
TB3
M-NET
Outdoor unit
[056]
TB7
TB3
ON/OFF remote controller
Model: PAC-YT40ANRA
®
Mr. SLIM
outdoor unit
[11]
MA
Parts
30VDC*1
(for connection to M-NET only)
Operating temperature range
Temperature
Storage temperature range
Humidity
30%~90%RH (Non-condensing)
0.5 kg [1-1/8 lbs]
180 x 120 x 30 mm [7-3/32 x 4-23/32 x 1-3/16 in]
The A-weighted sound pressure level is below 70 dB.
Front (cover off)
For connection to the M-NET
(A, B: Terminal for connection to the M-NET
transmission cable [non-polarized])
Power supply unit for transmission cable
(sold separately)
Model: PAC-SC51KUA
M-NET
Group 1
[001]
[002]
MA
R2
BC controller
[057]
[006]
ME
[106]
[206]
®
Mr. SLIM
outdoor unit
M-NET
adapter
[12]
Group 4
Group 5
MA
Receives power from the power supply unit for transmission cable or
from outdoor units via the M-NET transmission cable. The power
consumption coefficient*2 of AT-50B is "4."
0˚C~40˚C [32˚F~104˚F]
-20˚C~+70˚C [-4˚F~+158˚F]
Back
External input
adapter cable
access hole
Group 2
[003]
[004]
[005]
MA
Group 3
[007]
[008]
[009]
MXZ
M-NET
Interface
[13]
[14]
– 3 –
Qty.
1
1
4
4
2
1
1
1. AT-50B
1
Bottom
SD memory slot
(for program updates)
External output
adapter cable
access hole
Indoor unit
Local remote controller
M-NET transmission cable
MA remote controller cable
Numbers in the parentheses indicate address numbers.
Note:
• The figure at left only shows the transmission
cable connections. Power supply lines are
omitted.
• Provide a single ground point (class D) by
LOSSNAY
unit
grounding the shield wire of the M-NET
centralized controller transmission cable at one
of the power supply units. Provide a ground
[010]
point for the indoor-outdoor transmission cable
for each outdoor unit.
• Make sure that the centralized control switch
(SW2-1, or SW5-1 on some models) on the
outdoor unit connected to the M-NET
transmission cable is set to ON.
(Refer to the outdoor unit Installation Manual for
detailed information about dip switch settings.)
Outdoor
unit
• When both Air To Water (PWFY) and air-
conditioning units are connected to the outdoor
unit of Y series, the functions of Setback,
System-Changeover, and Operation Mode
Group 6
Selection Limit do not work properly.
2. Mounting bracket
Controller cover
mounting screw
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