Daikin MicroTech III Sales And Engineering Data Sheet page 48

Water source heat pump unit controller protocol information
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Table 21: Binary Input Status Bit Descriptions - Enfinity Single Stage Compressor (Models MHC/MHW, CCH/CCW, VFC/
VFW, LVC/LVW, VHC/VHF), Continued
Bit Number
Bit Description
Fan Speed Selection
22 & 23
(2 Jumpers)
24
Not used
Lead Compressor Options
25
(Unit controller software v3.1 and newer)
26
Compressor #2 Low Pressure Switch
27
Compressor #2 High Pressure Switch
28
Humidistat Dehumidification Request
29
Not used
30
Not used
31
Previous Unit Heat/Cool/Dehumid Mode
1. This switch is effective only when the network scheduling is not in use.
Table 22: Bit Description for SmartSource Single and Two Stage Compressor (Models GSH/GSV, GTH/GTV and GCV)
Bit Number
Bit Description
0
Normal/Test Mode
1
Fan Operation
2
Loop Fluid
3
Freeze Fault Protection
4
Room Sensor Setpoint Adjust Range
5
Thermostat/Room Sensor
6
Compressor Heating Source
7
I/O Expansion Module
8
Compressor Low Pressure Switch
9
Compressor High Pressure Switch
10
Emergency Shutdown
11
Local Occupancy Switch
Thermostat Heat Stage #3
12
(O – Terminal)
Thermostat Fan Request
13
(G – Terminal)
ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER
Setting
Unit Controller Jumpers
Jumper 5 = Open (0)
Jumper 6 = Open (0)
Jumper 5 = Shorted (1)
Jumper 6 = Open (0)
Jumper 5 = Open (0)
Jumper 6 = Shorted (1)
Jumper 7 = Open (0)
Jumper 8 = Open (0)
Jumper 8 = Closed (1)
I/O Expansion Module Inputs
Switch Closed (1)
Switch Open (0)
Switch Closed (1)
Switch Open (0)
Closed (1)
Open (0)
N/A
N/A
Provided by unit controller
Setting
Unit Controller Jumpers
Jumper 1 = Open (0)
Jumper 1 = Shorted (1)
Jumper 2 = Open (0)
Jumper 2 = Shorted (1)
Jumper 3 = Open (0)
Jumper 3 = Shorted (1)
Jumper 4 = Open (0)
Jumper 4 = Shorted (1)
Jumper 5 = Open (0)
Jumper 5 = Shorted (1)
Jumper 6 = Open (0)
Jumper 6 = Shorted (1)
Jumper 7 = Open (0)
Jumper 7 = Shorted (1)
Jumper 8 = Open (0)
Jumper 8 = Shorted (1)
Unit Controller Inputs
Switch Closed (1)
Switch Open (0)
Switch Closed (1)
Switch Open (0)
Open (0)
Switch Open (0)
Switch Closed (1)
Switch Closed (1)
Switch Closed (1)
48
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eleCTed
arameTers
Description
Single speed fan
Two speed fan
Three speed fan
Compressor #1 is lead
Compressor #2 is lead (dual compressor models only)
Low Pressure Switch for compressor #2 is normal
Low Pressure Switch for compressor #2 is in alarm
High Pressure Switch for compressor #2 is normal
High Pressure Switch for compressor #2 is in alarm
HGR Dehumidification is requested
HGR Dehumidification is not requested
Provides mode awareness in Fan Only state
(0=Heating, 1=Cooling or Dehumidification)
Description
Normal operation
Service/Test mode operation
Continuous fan operation
Cycling fan operation
Water loop fluid
Glycol loop fluid
LWT Freeze Fault Protection is disabled
LWT Freeze Fault Protection is enabled
Short range: -5º to +5º F (-2.78º to +2.78º C)
Long range: 55º to 95º F (12.78º to 35º C)
Thermostat control
Room sensor control
Allows compressor Heating mode operation
Disables compressor Heating mode operation
I/O Expansion Module is not present
I/O Expansion Module is required
Compressor Low Pressure Switch is normal
Compressor Low Pressure Switch is in alarm
Compressor High Pressure Switch is normal
Compressor High Pressure Switch is in alarm
Unit shuts down
Unoccupied
1
Occupied
Third stage of thermostat heating is requested
Thermostat fan operation is requested
I
nformaTIon
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