Varisol Installation Manual
16
The pump may only be run when the system has
been filled as dry operation will damage the pump.
The desired flow rate is 1 litre per minute per m
²
(10 tubes=1m
²
).
1. Set the pump to the first speed and run it
manually from the controller (see following
paragraph).
2. If the desired flow rate is exceeded, set the
flow meter to the desired rate by adjusting the
isolating valve with a flat headed screwdriver
(see diagram) with the pump running. Otherwise
repeat this step at the next pump speed and
continue until the desired flow rate is achieved
3. Stop the pump.
Operating the pump in ‘Manual’ mode
(for SC range controllers)
In order to run the pump in ‘Manual’ mode, slide
the operating switch on the left side of the solar
control panel to the upper of the three positions.
On the screen, select the appropriate relay with
the up/down arrows and press the ‘Set’ button to
run the relay and to switch it off again.
Other Relays
If any additional relays are set up on the system, these should be tested in ‘Manual’ mode as
above, to ensure the connections have been wired correctly.
Decommissioning the System
Due to temperatures potentially exceeding 170
˚
C and pressures greater than 6 bar, a solar
installation should only be decommissioned by a trained individual. The system should be
decommissioned in low light, ideally in the morning when the solar loop should be coolest.
Disposal
Dispose of separate materials in accordance with local regulations. Please see the following
pages for details of materials used in the construction of Thermomax collectors and guidance
on disposal of antifreeze.
1. Electrical
• Isolate controller from mains
• Remove cables to consumer units i.e.
controller and pump
• Remove sensors and associated cables
• Remove earthing cables
2. Collector Loop
• Beware of hot transfer fluid
• Drain collector loop at drain valve. Contain the
heat transfer fluid for appropriate disposal.
• Disconnect pipes from the manifold
3. Varisol Collector Disassembly
• Remove M8 bolt from manifold support rail on
the right hand end of the rail.
• Unclip rubber retainer on the tube support
• Slide the Varisol removal slide along the
manifold support rail strating at the right
hand end.
• Rotate each tube individually through 50
˚
until
engagement arrows line up and pull one tube
from the rest of the assembly. Ensure tube is
supported; only apply force onto the manifold
to disengage.
• Repeat process until all tubes are removed.
Setting the flow rate
ISOLATING VALVE
Left side view of controller
OPEN CLOSED
Summary of Contents for Varisol
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