Daikin MICROTECH SMARTSOURCE 2300 WSHP, Руководство по интеграции, Страница: 24 / 30

SPACE TEMPERATURE SETPOINTS
MT2300 WSHP BACNET INTEGRATION DAIKIN APPLIED
24
Space Temperature Setpoints
This section highlights the temperature setpoint parameters
and relationship to one another ( Table 15 and Table 16 ) .
The interactions are based on network overrides, occupancy
mode, short and long range setpoint adjust options, and long
range setpoint adjust min/max ranges . Figure 2 shows a
space temperature setpoint operation diagram to illustrate the
relationship among the inputs and their default values .
General Rules
The occupancy temperature setpoints must be kept in
ascending order as follows:
AV6 <= AV5 <= AV4 <= AV1 <= AV2 <= AV3
Table 15: Temperature Setpoint Interactions
Setpoint
BACnet
Object
Default Interaction Rule
Occupied Cooling Setpoint AV:1 75°F AV1 > (AV4 + AV10)
Standby Cool Setpoint AV:2 77°F AV2 > (AV5 + AV10)
Unoccupied Cool Setpoint AV:3 85°F AV3 > (AV6 + AV17)
Occupied Heat Setpoint AV:4 70°F AV4 > (AV1 – AV10)
Standby Heat Setpoint AV:5 66°F AV5 > (AV2 – AV10)
Unoccupied Heat Setpoint AV:6 60°F AV6 > (AV3 – AV17)
Occupied Setpoint Differential AV:10 1°F
Unoccupied Setpoint Differential AV:17 2ºF
Standard Application Mode
Setpoints
Table 16: Example Calculations
Unoccupied
Mode
Occupied Mode
using Network
Setpoints
Occupied Mode
using Long
Range Setpoint
Adjust
Standby Mode
using Short
Range Setpoint
Adjust
Effective Cool ON
SP = 85°F
MSV14=Disabled MSV14 = Enabled MSV14 = Enabled
Effective Cool
OFF SP = (85-2)
= 83°F
AV19 = 72°F
Reference SP =
AI5 = 72 .5°F
HP1: AV25 = 3°F
HP2: AV24 = 3°F
Effective Heat ON
SP = 60°F
AV35 = 0 .5°F
Deadband Factor
= ((75 – 70) / 2)
= 2 .5
Effective Cool ON
SP =
(77 + 3) = 80°F
Effective Heat
OFF SP
= (60 + 2) = 62°F
Reference SP
= (72 + 0 .5) =
72 .5°F
Effective Cool ON
SP = (72 .5 + 2 .5)
= 75°F
Effective Cool
OFF SP =
(80 – 1) = 79°F
Deadband Factor
= ((75 – 70) / 2)
= 2 .5
Effective Cool
OFF SP =
(75 – 1) = 74°F
Effective Heat ON
SP = (66 + 3)
= 69°F
Effective Cool ON
SP = (72 .5 + 2 .5)
= 75°F
Effective Heat ON
SP = (72 .5 – 2 .5)
= 70°F
Effective Heat
OFF SP =
(69 + 1) = 70°F
Effective Cool
OFF SP =
(75 – 1) = 74°F
Effective Heat
OFF SP =
(70 + 1) = 71°F
Effective Heat ON
SP = (72 .5 - 2 .5)
= 70°F
Effective Heat
OFF SP =
(70 + 1) = 71°F
Examples described here apply to Stage 1 heating/cooling .
1. The unit is operating in Unoccupied mode.
• EffCoolOnSP = AV3
• EffCoolOffSP = (EffCoolOnSP – AV17)
• EffHeatOnSP = AV6
• EffHeatOffSP = (EffHe AV17)
2 . The unit is operating in Occupied or Standby mode
with Local Setpoint Adjust disabled by MSV14=1.
This calculation then depends on whether or not there
is a valid AV19 value . The DeadBandFactor used in this
calculation is shown here for both Occupied and Standby
modes (and applies to both a valid and invalid AV19
value):
Occupied: DeadBandFactor = ((AV1 – AV4) / 2)
Standby: DeadBandFactor = ((AV2 – AV5) / 2)
Valid AV19 value:
• ReferenceSP = (AV19 + AV35)
•
EffCoolOnSP = (Refer DeadBandFactor)
• EffCoolOffSP = (EffCoolOnSP – AV10)
• EffHeatOnSP = (ReferenceSP – DeadBandFactor)
• EffHeatOffSP = (EffHe AV10)
Invalid AV19 value: (Analog Null)
The Reference setpoint used in this calculation is shown
here for both Occupied and Standby modes:
Occupied: ReferenceSP = (AV1 – DeadBand
AV35)
Standby: ReferenceSP = (AV2 – DeadBand
AV35)
• EffCoolOnSP = (Refer DeadBandFactor)
• EffCoolOffSP = (EffCoolOnSP – AV10)
• EffHeatOnSP = (ReferenceSP – DeadBandFactor)
• EffHeatOffSP = (EffHe AV10)