Priority Operation Mode Setting - Toshiba MMY-MUP0961HT6P-UL Service Manual

6-2-2. Priority Operation Mode Setting

Purpose/characteristics
This function allows switching between priority cooling and priority heating.
Four patterns of priority operation mode setting are available as shown in the table below. Select a
suitable priority mode according to the needs of the customer.
Setup
CAUTION
In the case of the priority indoor unit mode, it is necessary to set up the specific indoor unit chosen for priority
operation
(a single unit only).
(1) Outdoor unit setup method (header unit)
Outdoor DN Code
(O.DN) Setting
O.DN [18] = 0000
Priority heating (factory default)
O.DN [18] = 0001
Priority cooling
Priority operation based on No. of units in operation (priority given to the operation mode with the
O.DN [18] = 0002
largest share of units in operation)
Priority indoor unit (priority given to the operation mode of the specific indoor unit set up for priority
O.DN [18] = 0003
operation)
(2) Indoor unit setup method for priority indoor unit mode
The setting can be changed only when the system is at rest. (Be sure to turn off the system prior to this
operation.)
Operation
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