40
PFS 155C - 315C
OM 135
Menu 19, Chiller Setup, (continued)
Item
Screen
Line
Display
Field
Range
3
Unit Type=PFS315
1
PES075
PES095
PES105
PFS155
PFS170
PFS180
PFS200
PFS210
PFS235
PFS260
PFS275
PFS285
PFS300
PFS315
Low Temperature=No
2
No-Yes
2
1
OaT Sensor=None
1
None
Local
Remote
Alarm=closed
2
2
Evap gpm sensor= No
1
Cond gpm Sensor= no
2
3
Evap Full Gpm=6500
1
0-65535
Cond Full Gpm=6500
2
0-65535
3
1
Ambient Lockout = No
1
Config=
This defines the network communication link, com port type and MicroTech controller level. The first field
indicates the controller's network hierarchy. The second field indicates Port A's protocol. TTY is equal to the RS232
type and Master/Slave is equal to the IRS 485 type.
Unit Type=
This value is the chiller unit model number. The MicroTech has different look up tables depending on the
type of chiller.
Ident=
This is the MicroTech software identification.
Port A Baud=
This value defines the communication baud rate for port A. This is critical if there is a network. (Port A
baud rate must be set to 9600 on the master unit.)
Full Load Amp=
This value must match the compressor label value indicating the RLAs of the chiller unit. Several
control and safety functions reference this value.
Low Temperature=
This value selects the operational mode of the unit. If 'ice' is selected, the MicroTech default values
have to be reset to match the system requirements for an "Ice" application.
Evap Gpm Sensor=
Optional. This value defines if a flow sensor is present for the MicroTech to monitor.
Evap Full Gpm=
This value defines the full flow capabilities of the evaporator flow sensor. The MicroTech scales the
value linearly between 4 and 20 milliamp input or 0 to 10 Vdc input.
Ambient Lockout
= This value determines (according to the outside air temperature) the point that no chiller operation is
needed.
Cond Gpm Sensor=
Optional. This value defines if a flow sensor is present for the MicroTech to monitor.
Cond Full Gpm=
This value defines the full flow capabilities of the condenser flow sensor. The MicroTech scales the
value linearly between 4 and 20 milliamp input or 0 to 10 Vdc input.
