Haier MRV 5-RC VP1-112B Service Manual page 154

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.
① BM1 introduction
Outdoor searching
BM1_1
after startup
Indoor searching
BM1_2
after startup
BM1_3 Start up condition selection
BM1_4 Outdoor mode setting
Outdoor static pressure
BM1_5
selection
BM1-6 Valve box type selection
BM1_7
Outdoor address setting
BM1_8
OFF Begin to search outdoor
ON Stop searching outdoor and lock the quantity
OFF Begin to search indoor
ON Stop searching indoor and lock the quantity
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)
OFF
ON
OFF No static pressure, high speed (default)
ON
OFF The second generation LEV valve box
ON The first generation 4WV valve box
BM1_7 BM1_8
OFF OFF
OFF ON
ON OFF
ON ON
151
Heat pump (default)
Cooling only
Ultra high-speed
Unit number
0# (physical master unit)
1#
2#
3#
Group
class
(physical
master unit
is valid)