Watts Powers IntelliStation, User Manual/Instruction Manual

Page: 17 / 76

13
Description of Controls and Functions
System Menu
Item Field Range Default Additional Info
BAS Setpoint Max
80 to Mixed Out
Maximum – 10°F
(max value = 180°F)
140°F
Limit to the remote temperature adjustment (BAS) for
added security and safety. If BAS is set to ‘None’ this
field will not display.
Mixed Out Setpoint
80 to Mixed Out
Maximum – 10°F
(max value = 180°F)
140°F Mixed Outlet setpoint.
High Temp Alert
Mixed Out Setpoint
+10˚F to 190°F
150°F
A mixed outlet temperature over this amount will create
an error condition and issue a reset for the control.
Pump Operation OFF <> ON <> AUTO AUTO
DHW Recirculation pump control mode. AUTO-
temperature differential and dead head protection.
ON-Pump is always on. OFF-Pump is always off.
Pump Head 0.0 to 50.0 psi 8.5 psi
If the head measured across the pump is greater than
this value, the pump will turn/remain off since it can not
generate any flow at these operating conditions (Dead
Head Protection)
Pump Min On/Off Time 0 to 60 min 1 min The minimum time the pump runs or remains off.
Return Target 80°F to 180°F 130°F
The target temperature about which the pump relay
will operate.
Return Differential 1°F to 20°F 10°F
The differential used to determine the pump on and
pump off temperatures.
The System Menu selections are generally described in the table below:
BAS Setpoint Max 140°F
Mixed Out Setpoint
140°F
Pump Operation Auto
Pump Min On/Off Time
1 min
High Temp Alert
150°F
Pump Head
0.0 psi
Return Target 130°F
Return Differential
Back Up Down
System
Enter
?
10°F