TruSteel AV15, Руководство по установке

Страница: 34 / 43

AV15 INSTALLATION MANUAL | TruSteel AutoVap15 Installation Instructions | v. 1.3
34 / 43
•
The lower display shows the label with the alarm code; the upper display, if the alarm is
resettable, shows the label rSt, or NO if the alarm condition is still present.
SET
• Pressing SET with
rSt present, will reset the alarm. Continue this through all alarms until it
is clear and the chiller is ready to start.
•
If you want to scroll through all alarms present, use up or down buttons
Alarm codes
CODE DESCRIPTION Cause Reset Alarm trip
“AP” Alarms
Probe Fault Bad probe
broken lead Auto Instantaneously
AEFL Evaporator
Water level
alarm Low water level Auto/ Manual Delayed
ALc1 Phase Monitor
alarm Wrong or
missing phase Auto/ Manual Instantaneously
b (n) HP Compressor
(circuit number)
High pressure Fan?
Condenser
Blocked Manual Instantaneously
b (n) LP Compressor
(circuit number)
Low pressure Low
temperature,
loss of
refrigerant Auto/ Manual Delayed
b (n) AC Compressor
(circuit number)
freeze alarm Low
temperature,
Low Flow Auto/ Manual Delayed
b1tF Fan thermal
alarm Fan jammed
(ice) Manual Instantaneously
C(n) tr Compressor
(circuit number)
thermal alarm Running at high
temperatures Manual Instantaneously
AEht Evaporator inlet
high
temperature High water
temperature Manual Instantaneously
b1AC Set Point
After the unit is primed, you need to lower the freeze point of the reservoir.
**Note: Contact MTA to determine the PG ratio before adjusting the freeze alarm (b1AC) from set
point of 40F.
This will be based on the climate extremes for your chillerʼs location. For standard ambient
temperature above (32F) set the (b1AC) to 25F
To Lower freeze point follow the instructions below.
TURN UNIT TO STNBY TO ACCESS
Verify that the glycol percentage in the circulated coolant is adequate to protect the coolant from
freezing at the target outlet temperature. You must use Glycol and NOT water. Also consider the
minimum ambient air temperature if the chiller is to be installed outdoors. Adjust the glycol
percentage for the lowest of these temperatures with at a 10F safety factor below the freeze
alarm set point. For example, to operate at 25F coolant outlet temperature (indoors) set the