Specifications

TM024 Premier Loline Solar Drain back Service Instructions REV: A
D.O.I: 12/12/2007
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
15
Electronic Controller
The control board or electronic controller
is used to control the pump by monitoring
the water temperatures and heat transfer
temperatures at various locations within
the system.
By monitoring the temperature of the
heat transfer fluid returning to the solar
collectors (cold sensor) and the
temperature of the fluid at the outlet of
the collectors (hot sensor), the controller
adjusts the pump speed to regulate the
temperature rise through the collectors to
10ºC.
The controller also monitors the water
temperatures within the storage cylinder
and regulates when solar heating should
occur.
Solar Monitor
A remote solar monitor is located on the
front of the cylinder pump access cover.
The remote solar monitor plugs into the
control board display socket and has two
LED’s which indicate the operational mode
or fault status of the system. The green
LED (marked solar) is used to indicate the
present operating mode of the controller
whilst the red LED (marked attention) is
used to indicate a fault condition.
590 and 596 models manufactured before
01/11/2006 do not have a remote solar
monitor however the control board has an
inbuilt solar monitor (green and red LED
mounted on the control board) which can
be viewed by removing the pump access
cover.
It should be noted that on early versions the solar monitor connection plug is not polaritive
sensitive and may be inserted into the control board plug socket either way. If unusual fault
codes are occurring, such as a solid red LED when in standby mode (instead of green), or
a flashing red LED whilst the pump is operating (instead of flashing green), the solar
monitor plug polarity should be tested by performing the following procedure: