39
IOM 1372
WWW.DAIKINAPPLIED.COM
OPERATION
Table 14: Valve Setpoint Settings
Description
Default
Range
PW
Comments
EXV Gain
78
20-400
T
Gain selection based
on chiller size and
valve type.
Figure 48:
Settings View - Offsets
Table 15:
Offsets Setpoint Settings
Description Default
Range
PW
Comments
Evap EWT
0 .0
-1.5 to 1.5
T
Sets the offset for the
sensor listed based upon
jobsite calibrations.
Evap LWT
0 .0
-1.5 to 1.5
T
Cond EWT
0 .0
-1.5 to 1.5
T
Cond LWT
0 .0
-1.5 to 1.5
T
Liquid Line
Temp
0 .0
-1.5 to 1.5
T
Comp
Discharge
Temp
0 .0
-1.5 to 1.5
T
Comp Suc-
tion Temp
0 .0
-1.5 to 1.5
T
Evap Pres-
sure
0 .0
-2 to 2
T
Cond Pres-
sure
0 .0
-2 to 2
T
Liquid Line
Pressure
0 .0
-2 to 2
T
Comp
Discharge
Press
0 .0
-2 to 2
T
Comp Suc-
tion Press
0 .0
-2 to 2
T
Figure 49: Settings View - Alarms
Table 16: ALARMS Setpoint Settings
Description
Default
Range
PW
Comments
Condenser
Freeze
Protect
34.0°F
34.0 to
38.0°F
T
Sets the value of
condenser saturated
temperature below
which the condenser
pump is forced ON - oc-
curs when unit is off and
chiller senses need to
provide flow to address
a chiller limit alarm -
Evaporator
Freeze
Protect
34.0°F
34.0 to
38.0°F
T
Sets the value of
evaporator saturated
temperature below
which the evaporator
pump is forced ON - oc-
curs when unit is off and
chiller senses need to
provide flow to address
a chiller limit alarm -
Low
Evaporator
Pressure
29 psi
28 to
45 psi
T
Sets the evaporator
pressure value below
which the compressor is
shut down - may need
to be lowered if glycol is
added to the system. If
Glycol Enabled is select-
ed, minimum may be set
as low as 20 psi.
High
Condenser
Pressure
140 psi
130 to
175
psi
T
Sets the condenser
pressure limit
Evaporator
Trip Time
1 sec
0 to 5
sec
T
CAUTION
Changing setpoint below 28 psi minimum requires glycol to be added
to the system otherwise there is a risk of freezing the evaporator.