Commissioning; Initial Commissioning Procedure - Evinox ModuSat FS Series Installation Manual

5 COMMISSIONING

Full unit commissioning will be carried out by Evinox engineers, however initial checks
prior to this can be carried out.
Before initial start up of the unit please ensure that the following are carried out:
• Check that the tank, primary and secondary circuits are clean, treated and filled.
• Check that the air has been removed from the circuits and that the relief valve is
properly closed.
• Check that all pipework to the HIU is connected properly.
• Check all pipe connections and joints are tight.
• Ensure that the tank drain cock is closed.
• Check pressure(s) in expansion vessel and recharge if necessary.
• Chock open P & T valve on top of tank (by fitting manual lever)
• Slowly open the cold water main and fill tank with water until if freely discharges
through the outlet from the P & T valve
• Remove chock and close P & T valve.
Test delivery of water from tank by opening and running all taps, both hot and cold
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water and any other outlets i.e. showers etc.
• Check operation of expansion relief valve on the internal unvented kit by lifting manual
release lever and discharging water.
• Make sure that the electric wiring connections are as per the instructions and wiring.
• Check that there is no leakage from the tank or connections.
• Check that the voltage and fuse rating of the electrical supply is correct (Please refer to
the wiring diagrams in this manual), and that the earth connection is correct and in-line
with current regulations.
• Check the connection of any other components i.e. thermostats, probe etc.
• If the pressure is below 1 bar, top up the circuit to a cold fill pressure of 1.5 bar as low
pressure will stop the pump from running due to the inbuilt safety parameters.
• Ensure all valves are opened slowly and the procedure of keeping the bypass valve
fully open, then opening the primary flow and return valves, followed by the closing of
the bypass is adhered to as previously described. This prevents the components being
exposed to excessive hydraulic shock.
If there is a problem with any of the above listed checks, contact Evinox
immediately and DO NOT OPERATE THE UNIT until rectified.
6.1

Initial Commissioning Procedure

Only after having checked the above and all is acceptable, can the unit be powered up and
initial checks carried out. According to the installation type, identify the operations to use to
start the unit, then:
• Switch on electric power to the ModuSat using the external fused switch.
• Check that the Room Unit display powers on
• Check indicator LEDs on valve actuators, these will blink red for approx 1 min on initial
start-up, following this they will go solid green. The LED's will flash green when the
actuator is either being opened or closed.
• Check that the pump starts and runs automatic venting procedure and three port valve
fully diverts to hot water mode (Port B). Check status of pump LED (See page 38).
(When the unit is switched over to heating mode please note that the pump will run for
2 mins prior to the heating PICV opening, this is not a fault in the unit but a normal
control function as the HIU asses the current heating circuit flow temperature.)
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