Specifications

30
Dual Pump and Manual Control
— To configure cooler
pump control options with the Touch Pilot™ display.
To configure cooler pump control options with the Naviga-
tor™ display:
Condenser Pump Control — The 30XW chillers can
be configured for condenser pump control. When configured,
the condenser pump output will be energized when the chiller
enters an "ON" mode. The condenser pump output is also ener-
gized if either circuit's saturated condensing temperature falls
below 34 F (1.1 C). A field-installed condenser flow switch in-
put is required when using condenser pump control. The flow
switch input is connected to Channel 16A of the Main Base
Board (MBB-J5A connector). There is a factory-installed
jumper wire on this channel that must be cut. Connect flow
switch output signal wire to cut jumper wire connected to the
main base board pin marked "CH 16A." Install wire nut on oth-
er end of cut jumper wire. Condenser flow switch requires 24v
power to be taken from the load side of CB1. Refer to the 24v
and 115v control wiring diagrams for flow switch wiring
marked as device "CDFS."
The variable Condenser Pumps Sequence must be config-
ured to enable pump control. The factory default setting for
Condenser Pumps Sequence is 0 (No Pump). The only config-
uration setting choice for Condenser Pumps Sequence is 1 (1
pump only). With the Condenser Pumps Sequence (HPUM)
set to 1, the control will start the pump. If a flow failure is
detected, the unit will shut down and must be manually reset. If
the condenser flow switch does not close within 1 minute after
pump start command or is open for at least 15 seconds during
chiller operation, alarm P.15 will be generated. The pump will
continue to run for 60 seconds after an off command is issued.
CONDENSER PUMP CONTROL CONFIGURATIONS
No Pump Control
— To configure condenser pump control
options with the Touch Pilot™ display:
To configure cooler pump control options with the Naviga-
tor™ display:
Single Pump Control
— To configure condenser pump con-
trol options with the Touch Pilot™ display:
To configure condenser pump control options with the Nav-
igator™ display:
Machine Start Delay — An option to delay the start of
the machine is also available. This parameter is useful in keep-
ing multiple machines from starting at the same time in case of
a power failure. The parameter has a factory default of
1 minute. This parameter also has a role in the timing for a
chilled water flow switch alarm. The flow switch status is not
checked until the delay time has elapsed.
To configure this option with the Touch Pilot™ display:
To configure this option with the Navigator™ display:
Circuit/Compressor Staging and Loading —
The AquaForce
®
30XW chillers employ one compressor per
circuit. As a result, circuit and compressor staging are the
same. The control has several control option parameters to load
the compressors. The circuit/compressor start can be config-
ured as well as the loading of each circuit/compressor.
CIRCUIT/COMPRESSOR STAGING — The control can be
configured to decide which circuit/compressor starts first, by
configuring Lead/Lag Circuit Select (Circuit Loading
Sequence, LLCS). Three options for this variable are allowed:
Automatic Lead-Lag, Circuit A Leads or Circuit B Leads. The
factory default is Automatic Lead-Lag.
The automatic lead-lag function determines which circuit/
compressor starts. When enabled, the control will determine
which circuit/compressor starts to even the wear of the com-
pressor. The compressor wear factor (combination of starts and
run hours) is used to determine which compressor starts.
Compressor Wear Factor = (Compressor Starts) + 0.1 (Com-
pressor Run Hours)
The circuit/compressor with the lowest compressor wear
factor is the circuit that starts first.
If starting a particular circuit/compressor first is desired, that
can also be configured with the same variable.
To configure this option with the Touch Pilot™ display:
To configure this option with the Navigator™ display:
DISPLAY NAME PATH
LINE
NO.
VALUE
Cooler Pumps
Sequence
Main Menu
Config USER
8
2 (2 Pumps Automatic)
3 (Pump 1 Manual)
4 (Pump 2 Manual)
Pump Auto
Rotation Delay
Main Menu
Config USER
14 Default = 48 hours
Pump Sticking
Protection
Main Menu
Config USER
15
Default = No
No = Disabled
Yes = Enabled
Flow Checked
if C Pump Off
Main Menu
Config USER
17
Default = Yes
No = Disabled
Yes = Enabled
ITEM ITEM EXPANSION PATH VALUE
PUMP
Cooler Pumps
Sequence
Configuration OPTN
2 Pumps Auto
PMP1 Manual
PMP2 Manual
ROT.P
Pump Rotation
Delay
Configuration OPTN
Default =
48 hours
PM.PS
Periodic Pump
Start
Configuration OPTN
Default = No
No = Disabled
Yes = Enabled
P.L OC
Flow Checked
if Pmp Off
Configuration OPTN
Default = Yes
No = Disabled
Yes = Enabled
DISPLAY NAME PATH
LINE
NO.
VALUE
Condenser
Pumps
Sequence
Main
Menu Config USER
7
0 (No Pump
Control)
ITEM ITEM EXPANSION PATH VALUE
HPUM
Condenser Pumps
Sequence
Configuration OPTN No Pump
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DISPLAY NAME PATH
LINE
NO.
VALUE
Condenser
Pumps
Sequence
Main
Menu Config USER
7
1 (Single Pump
Control)
ITEM ITEM EXPANSION PATH VALUE
HPUM
Condenser Pumps
Sequence
Configuration OPTN 1 Pump Only
DISPLAY NAME PATH
LINE
NO.
VALUE
Unit Off to
On Delay
Main Menu
Config USER
6 Default = 1 Minute
ITEM ITEM EXPANSION PATH VALUE
DELY Minutes Off Time Configuration OPTN
Default =
1 Minute
DISPLAY NAME PATH
LINE
NO.
VALUE
Circuit Loading
Sequence
Main Menu
Config USER
1
0 (Automatic Lead-lag)
1 (Circuit A Leads)
2 (Circuit B Leads)
Default = 0
(Automatic Lead-lag)
ITEM ITEM EXPANSION PATH VALUE
LLCS
Lead/Lag
Circuit Select
Configuration
OPTN
Range: Automatic,
Cir A Leads,
Cir B Leads,
Cir C Leads
Default – Automatic
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