Low temperature leaving alarm
1. In access level O, press
System Setpoints
and se-
lect
Low LWT Alarm
.
2. Set the low LWT alarm temperature to between
5.4℉ and 9℉ (3℃ and 5℃) above the liquid
freeze temperature point. For example, if the gly-
col liquid freeze point is 14℉ (-10℃), you can set
the alarm point to 23℉ (-5℃).
Setting the operating mode
1. In access level O, press
System Setpoints
in the
menu and select
Operating Mode
.
2. Set the mode to
Cooling/Heating/Heat-
ing/Pump Only
.
Chiller Start/Shutdown
1. In access level O, press
System Setpoints
in the
menu and select
Chiller Start/Shutdown
.
2. Set the stop/run of the chiller.
Faults
In access level O, press
Fault
in the menu to view the
active faults, reset faults, and to delete the fault history.
• To reset a fault if the alarm condition has been
corrected, press
Reset Fault
at the bottom of the
screen. The access level must be at O or S, de-
pending on the fault level to be reset.
• To clear the history of inactive faults, press
Clear
History
at the bottom-right of the screen. You can
only clear the fault history with S level access.
Active faults are colored blue, while recognized faults
in the fault history are colored black. Press on a fault
item to access detailed information about it.
Figure 11:
Fault screen
Additional checks for models 0070 to 0140
Models 0070, 0105, and 0140 are modular arrays,
which require additional checks as shown the follow-
ing sections.
Figure 12:
0140 modular array example
Configuring 0035, 0070, 0105, and 0140PJP/S
models
Check and configure the micro DIP switches SW301
of each control board (microboard) according to the
following tables for each module in a modular array
unit.
Table 2:
DIP switch setting for each module address
Module SW301-1 SW301-2 SW301-3 SW301-4 SW301-5
1
On
Off
Off
Off
Off
2
Off
On
Off
Off
Off
3
On
On
Off
Off
Off
4
Off
Off
On
Off
Off
5
On
Off
On
Off
Off
6
Off
On
On
Off
Off
7
On
On
On
Off
Off
8
Off
Off
Off
On
Off
9
On
Off
Off
On
Off
10
Off
On
Off
On
Off
11
On
On
Off
On
Off
12
Off
Off
On
On
Off
13
On
Off
On
On
Off
14
Off
On
On
On
Off
15
On
On
On
On
Off
16
Off
Off
Off
Off
On
17
On
Off
Off
Off
On
18
Off
On
Off
Off
On
19
On
On
Off
Off
On
20
Off
Off
On
Off
On
21
On
Off
On
Off
On
Quantech
12
Form QTH1-QSG1
Issue date: 12/20/2023
