Manual Myson iV160 (page 22 of 25) (English)

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iVECTOR Heater/Cooler

13.0 Troubleshooting

Please follow the troubleshooting guide below before calling for

assistance. It is important to make sure that an apparent problem

with this unit is not the result of system controls being

incorrectly set, that there is no electrical supply to the unit or

that the unit is incorrectly set.

Possible Installation Faults

Poor heating or cooling performance from this unit could be the

result of one or more of the following factors which should have

been taken into consideration at the installation stage.

l Unit incorrectly sized against the room heat loss.

l Lack of water flow - Incorrect pipe size to unit

- Valves not fully open

- System incorrectly balanced

- Pump set too low

l Boiler or heat pump controls set too low.

System Diagnostic

A system diagnostic tool has been built into the control system

of this unit which enables testing of all the input and output

functions from the control.

Select AUTO setting in the user menu then press “Down” for

5 seconds.

Use the left and right arrows to scroll through the

inputs/outputs from relays, air sensor, water sensors, BMS inputs,

and screen to check as necessary.

Note: The control will revert back to the main menu after

1 minute if no buttons are pressed.

Heating Mode/

Cooling Mode -

No Fan

Poor heating

performance/

unit cycling on

water sensor

Possible Causes

Electrical supply switched off

Fuse blown

Unit switched off

Temperature set point reached

Water temperature reaching fan

convector below 32°C in heating

or above 15°C in cooling

Problem Remedy

Low water temperature to unit Turn up water temperature at boiler

or heat pump

Poor water flow Vent air from heating system

Switch on supply

Replace fuse

Switch unit on at LCD display

Increase temperature set point

Check boiler, heat pump or equivalent

Programmer ON

Boiler/Heat pump on and set to

correct setting

Pump running

Note: Operation of fan convector can be checked by

switching to manual fan setting

If the fan convector is still faulty after checking the above, call your installer or MYSON Service.

iVECTOR HEATER/COOLER

INSTALLATION, OPERATING, MAINTENANCE & AFTER SALES MANUAL

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Myson iV160 Quick start guide - English - 2 pages

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Myson iV160 Manual

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