SolaStat-Plus Safety Instructions and Limit of Liability.
Read safety instructions and limit of liability before proceeding with the installation.
General Safety Instructions.
1. This installation guide is for the installation of SolaStat-Plus solar hot water controllers only and is not
an installation guide for any other part.
2. The complete installation should be checked at least annually for damage or malfunction.
3. All servicing to be carried out by an authorised service agent only.
4. All aspects of the installation must comply with local electrical and plumbing regulations (and any
special solar hot water regulations).
Installation Precautions.
1. Must be installed away from water sources such as rain, leaking pipes, or wet floors and must not be
installed in damp areas like bathrooms.
2. Must be installed away from direct sunlight, flammable liquids or radiant heat sources.
3. Power leads must be facing directly down, not sideways or upwards.
4. Must be in a safe environment for users to inspect display panel.
5. Failure to mount sensors correctly can lead to a poorly controlled solar hot water system with safety
issues like overheating and over pressure damage to the plumbing and hot water tank and freezing
damage to the solar hot water collector.
6. Alteration of installer level program values outside those recommended values by ICM and other
parts suppliers (especially hot water tank manufacturer’s maximum recommended temperature) can
lead to dangerous conditions and/ or damage to parts of the solar hot water system.
Electrical Precautions.
1. All mains voltage electrical work to be carried out by a qualified electrician, especially external power
outlet socket installation.
2. A readily accessible disconnect device, overcurrent device and RCD Protection rated to suit the size
of the pump plus 5VA must be incorporated in the power supply wiring. The overcurrent device for a
1500W, 240Vac pump must not exceed 10Amps.
3. It is recommended that sensor leads be kept 300mm away from mains and comms cables.
4. Do not use mains power extension cords unless approved by the manufacturer. Water resistant plugs
and sockets should be used.
5. The SolaStat-Plus controlled outputs (PUMP and HWC) are connected to the input power supply
wiring and are not isolated from it. Supply voltages will be output through that outlet during activation.
The HWC outlet is labelled ‘AUX’.
6. Always use within specified voltage and load ranges. Never use with damaged leads, plugs or sockets.
7. Do not allow the sensor cables to come within 10mm of the high voltage connectors or components
inside the enclosure.
8. The HWC output must be used in conjunction with a SolaStat-Rly. This is due to the high power levels
used by hot water electric elements, and completely isolates the SolaStat-Plus from the HWC circuit.
This will also ensure any remote hot water electric element control (eg Ripple Control) is still maintained.
Notes on Permanent Wiring.
Permanent wiring of the SolaStat-Plus-2 directly to the HWC electric element is possible (no SolaStat-Rly).
However Electricity Suppliers may remotely turn off the HWC element using controlled wiring. Do not
power the SolaStat-Plus from the controlled wiring and do not bypass the controlled wiring. The recom-
mended method is to use the SolaStat-Rly. This is a high power relay and connects between the controlled
wiring and the HWC element. NO liability will be accepted by ICM or any of it’s authorised agents for
permanent wiring installations. For permanent wiring the maximum load of the element and pump must be
less than 16Amps @ 25C (Typ 3kW Max Element).
Notes on Hot Water Cylinders with Over Temperature Cutout.
Some standard electric element hot water tanks have an overtemperature cutout fitted to remove power in
the event of a thermostat failure. The temperature this is set to can typically range from 75C to 95C which
is adequate for electric element heating safety. However in solar hot water systems this temperature can be
exceeded and the overtemperature cutout may activate turning the electric element off. The cutout needs
to be manually reset by a qualified electrician. In these installations it may be necessary to modify the
electrics in a manner approved by the hot water tank manufacturer or set the topout adjustable value to a
temperature lower than the overtemperature cutout.
CAUTION: Dangerous Voltages may be present. The SolaStat has no user serviceable parts.
Protective enclosure only to be opened by qualified personnel.
Remove ALL power sources before removing protective cover.
19.01-7
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