Daikin MPS - Page 36

MPS015 through MPS050, 2, 3 or 4 Compressors 2 Circuits
Fixed staging sequences are provided for MPS units. The
compressor state will normally be as indicated in the Standard
Sequences table below for each compressor stage. The
staging will be as indicated in the Alternate Sequences table
below when the unit is congured for modulating hot gas
reheat control and dehumidication operation is active. When
any circuit is disabled, the compressors on that circuit are
turned off immediately. Staging continues normally when a
circuit is disabled.
NOTE: Dehumidication operation is disabled when circuit 1
is disabled since this is the circuit equipped with the
hot gas reheat.
When the unit has staged up to the maximum stage with
one circuit disabled and that circuit is enabled, a 10 second
delay between compressor starts is used and a cooling stage
time must have elapsed since an individual compressor was
stopped before it is restarted.
Table 21: MPS Standard Staging
Unit
Conguration
Compressor
Number
Circuit
Compressor
Model
MBH Stage 1 Stage 2 Stage 3 Stage 4 Stage 5
UnitType=2 Compressor State= 1 12
CoolingType=1 1 1 083 x x
Comp Cong=4 2 2 068 x
Unit Size=015 54% 100%
UnitType=2 Compressor State= 3 2 1 23 12
CoolingType=1 1 1 083 x x
Comp Cong=D 3 1 041 x x
Unit Size=015 2 2 068 x x x
30% 46% 54% 72% 100%
UnitType=2 Compressor State= 1 12
CoolingType=1 1 1 083 x x
Comp Cong=4 2 2 090 x
Unit Size=017 48% 100%
UnitType=2 Compressor State= 3 1 2 23 12
CoolingType=1 1 1 083 x x
Comp Cong=D 3 1 041 x x
Unit Size=017 2 2 090 x x x
28% 48% 52% 76% 100%
UnitType=2 Compressor State= 1 2 13 23 123
CoolingType=1 1 1 068 x x x
Comp Cong=D 3 1 068 x x x
Unit Size=020 2 2 083 x x x
35% 40% 66% 71% 100%
UnitType=2 Compressor State= 3 13 12 123
CoolingType=1 1 1 054 x x x
Comp Cong=3 3 1 054 x x x
Unit Size=020 2 2 120 x x
25% 46% 75% 100%
UnitType=2 Compressor State= 1 2 13 23 123
CoolingType=1 1 1 068 x x x
Comp Cong=D 3 1 068 x x x
Unit Size=025 2 2 120 x x x
30% 48% 56% 74% 100%
UnitType=2 Compressor State= 3 13 12 123
CoolingType=1 1 1 083 x x
Comp Cong=3 3 1 083 x x x x
Unit Size=026 2 2 083 x x
37% 63% 71% 100%
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