Jumper Configuration Settings - Daikin VHF Installation And Maintenance Manual

Jumper Configuration Settings

Figure 51: Configuration jumpers location
Table 14: Jumper settings and descriptions
Jumper
JP1 Mode
JP2 Fan operation
JP3
Freeze Protection
(See Warning)
JP4 Freeze Fault Protection
Set point adjustment range only applies to
JP5
network controls with a room temperature sensor
JP6 Room control type
JP7 Compressor heating source
JP8 I/O expansion module
Table 15: I/O expansion module jumper settings
I/O Expansion Description
Fan Row Select for Operating Modes:
▪ Fan Only
▪ Hydronic Heating
Heating Options
Not Used
Not Used
Not Used
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Description
Open for normal operation mode
Shorted for service/test operation mode
Open for continuous fan operation, when not in unoccupied mode.
Shorted for cycling fan operation
Open for water freeze protection
Shorted for systems with anti-freeze protection (15°F (9°C)
Open for none
Shorted to enable freeze fault protection based on Leaving Water Temperature (LWT)
Open for adjustment range of -5.0° to +5.0° F
Shorted for 55° to 95° F adjustment range
Open for thermostatic room control
Shorted for room temperature sensor control, MicroTech III only.
Open to enable compressor heating
Shorted to disable compressor heating
Open when I/O expansion module is not required
Shorted when I/O expansion module is required
Proper antifreeze/water solution is required to minimize the
potential of fluid freeze-up. Jumper JP3 is factory set for
water freeze protection with the jumper open. Operation at
fluid temperatures below 32°F with anti-freeze protection
requires JP3 to be field configured for the jumper closed.
If unit is employing a fresh water system (no anti-freeze
protection), it is extremely important that JP3 jumper
setting remains in the open position (factory default setting)
in order to shut down the unit at the appropriate water
temperature to protect your heat pump from freezing.
Failure to do so can result in unit damage and fluid leaks.
Jumper(s) Setting
JP1 = Open
JP2 = Open
JP1 = Shorted
JP2 = Open
JP1 & JP2
JP1 = Open
JP2 = Shorted
JP1 = Shorted
JP2 = Shorted
JP3 = Open
JP4 = Open
JP3 & JP4
JP3 = Shorted
JP4 = Shorted
JP5 = Open
JP5 & JP6
JP6 = Open
JP7 JP7 = Open
JP8 JP8 = Open
40
WARNING
Options
Description
Fan Row #1 Selected
Fan Row #2 Selected
Fan Row #3 Selected
Fan Row #4 Selected
None
Hydronic Heat
None
None
Vertical Stack WSHP • IM 986-11
C
ontrols