Table of Contents
Advertisement
Pump
An electro-mechanical device that pumps solar transfer fluid through the collectors by
centrifugal force. The control board varies the flow rate of the pump by pulsing the
electrical supply to the pump motor. The flow rate is proportionate to the pulse rate. e.g.
higher pulse rate = higher flow rate.
Pump Relay
The pump is controlled and switched by the control board however the pump power supply
may be interrupted by the relay in the event of a software malfunction or over temperature
condition. If a fault develops in the controller software or the cylinder reaches over
temperature (95ºC) the controller will de-energise the pump relay. This will open circuit the
pump wiring and prevent the pump from operating.
Hot Sensor
A thermistor type sensor utilised to sense the air/fluid temperature in the collector(s). The
hot sensor is fitted into the unused connection at the top of the collector array on the
opposite side to the hot pipe connection. The hot sensor plugs into and is monitored by the
control board.
Cold Sensor
A thermistor type sensor utilised to sense the fluid temperature leaving the heat
exchanger. The cold sensor is fitted into a pocket in the pipe work between the heat
exchanger outlet and the pump. The cold sensor plugs into and is monitored by the control
board.
Anode (Sacrificial)
A metal alloy electrode (magnesium) installed in the water heater cylinder that by galvanic
action protects the cylinder from corrosion. All Premier Loline models are fitted with two
anodes both of which are located in the potable water section of the storage cylinder.
Thermistor Strip (Sensor Strip)
A thermistor type sensor strip mounted down the external face of the storage cylinder
between the cylinder jacket and storage cylinder. The sensor strip has 6 equally spaced
thermistors however the water temperature of the cylinder is derived by averaging the
readings from the top 3 sensors only. It should be noted that the lower three sensors are
not used. The thermistor strip plugs into and is monitored by the control board.
Heat exchanger
Heat exchange from the solar heated transfer fluid to the water in the storage tank is by
means of a 'falling film' on the inside wall of the heat exchanger. The fluid entering the
heat exchanger top is diverted through an internal four channel distributor which creates
the falling film.
Mechanical Thermostat - 591 Models Only
A device responsive to temperature which controls the supply of electrical energy to the
element to maintain the heater water at the required temperature. The mechanical
thermostat controls the electric boost element only.
Over Temperature Energy Cut-out (E.C.O.) - 591 Models Only
A temperature-sensing device integral to the mechanical thermostat that automatically cuts
off the supply of electrical energy to prevent excessive water temperature occurring. This
device will not reset automatically but may be manually reset once temperatures have
fallen to a safe level.
TM024 Premier Loline Solar Drain back Service Instructions REV: A
17
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"
Advertisement
Table of Contents
