151
Outdoor dip switch introduction
Identification:
• Physical master unit: by setting dip switch, the unit number is 0. It is used to communicate with indoor unit, also it
is the organizer of outdoor communications as communication master unit.
• Functional master unit: the outdoor with the highest priority of running, the priority class is 0.
• Physical slave unit: by setting dip switch, the unit number is not 0.
• Functional slave unit: the outdoor without the highest priority of running, the priority class is 1~3.
• Group class setting: physical master unit setting is valid, which can be used for all the units. For example, silence,
snow-proof, piping length etc setting. Set all kinds of state on the physical master unit as a representative.
• Single class setting: only be used for the single unit, instead of the whole group. For example, sensor backup
running, inverter board selection etc.
BM1_1
Outdoor searching
after startup
OFF
Begin to search outdoor
Group
class
(physical
master unit
is valid)
ON
Stop searching outdoor and lock the quantity
BM1_2
Indoor searching
after startup
OFF
Begin to search indoor
ON
Stop searching indoor and lock the quantity
BM1_3 Start up condition selection
Power on, no matter this dip switch is on "ON" or "OFF"
position (default is OFF) don't change the dip switch position,
the unit will start after 6 hours preheat or within 6 hours when
oil temp. meets the standard value:
If you want to reduce the startup condition, you can do the
following operation:
after power on need one action to change this dip switch to
"ON" position (If the dip switch is on "OFF" position, after
power on change the "OFF" to "ON";
If the dip switch is on "ON" position, change the "ON" to
"OFF" then to "ON")
The unit will start after 6 hours preheat or within 6 hours when
oil temp. meets the allowed value (allowed value lower than
the standard value)
BM1_4
Outdoor mode setting
OFF
Heat pump (default)
ON
Cooling only
BM1_5
Outdoor static pressure
selection
OFF
No static pressure, high speed (default)
ON
Ultra high-speed
BM1-6
Valve box type selection
OFF
The second generation LEV valve box
ON
The first generation 4WV valve box
BM1_7
BM1_8
Outdoor address setting
BM1_7
BM1_8
Unit number
OFF
OFF
0# (physical master unit)
OFF
ON
1#
ON
OFF
2#
ON
ON
3#
①
BM1 introduction
Summary of Contents for MRV 5-RC AB052MAERA
Page 1: ...MRV 5 RC Service Manual SYJS 03 2019REV A Edition 2019 03 ...
Page 3: ......
Page 55: ...52 AV08 10 12 14IMVURA 4 Center of gravity x X 347 9587 y 471 5454 z 725 6683 y z ...
Page 56: ...53 AV16 18 20 22IMVURA x X 650 5962 y 380 7255 z 706 5342 y z ...
Page 106: ...103 2 Dimension 4 19 200 60 25 25 25 249 108 232 84 69 388 73 82 65 103 177 4 44 4 35 277 ...
Page 116: ...113 2 Preparation before installation ...
Page 162: ...159 One by one valve box PCB code 0151800186A 2 Valve box PCB photo and dip switch setting ...
Page 165: ...162 One by four valve box PCB code 0151800466 ...