11 48008002-06
Pressure readings are most accurately obtained if taken in the discharge ducting of the fan coil unit
Where dampers are fitted in the ductwork they should be used for balancing purposes only and not to regulate the air volume.
Where possible this unit should be adjusted at the fan coil unit.
Electric Air Heaters [if fitted]
Wiring should be in accordance with I.E.E regulations and local by-laws and wired to the appropriate wiring details issued with the
unit. Ensure that all cables and connectors used are suitable for the load being carried.
Important: the fans unit
’s must be running before switching on the electric heater elements.
The fan control must be interlocked with the heater control.
Electric heater elements are fitted with a thermal auto reset high temperature cut outs switches on each element, and a manual
reset safety thermostat located on the fan deck.
Before switching on the electric heaters ensure the correct airflow through the unit, a reduced or no air flow will case the thermal cut
out protection switches to operate.
IMPORTANT
If the manual re-set thermostat cuts out isolate all power to the electric heater units before resetting, the cause of the cut
out most be determined and rectified before re setting the manual cut out thermostat.
SERVICE AND MAINENANCE
GENERAL
This section of the manual deals with the requirements for service and maintenance of Quartz fan coil units and must be read
before any maintenance is attempted.
WARNING: It is essential that before any work is carried out the unit is isolated externally from the electrical supply.
For full warranty details see TEV Limited Terms and Conditions for the supply of goods and/or services at
QUARTZ Technical Helpline 01484 405630 Monday to Friday 9am
– 4.30pm
FAN MOTOR
A regular check on the fan/motor assembly is advisable to ascertain if the motor is overheating and that the fan impeller is free
running and has not sustained any damage. If any overheating is occurring, check that the full load current of the motor is within the
nameplate rated value, the impeller is running free and that there is no obstruction upstream of the fan causing a high resistance
with consequent lack of airflow. Also check that the external resistance of the unit is not low, thus causing an increase in power
input.
Check security of fan fixing bolts.
FAN IMPELLOR
Check the condition of the impellor blades any debris deposited on the blades should be removed using a soft brush; take care not
to damage the blades.
TO REMOVE FAN ASSEMBLY THE FOLLOWING PROCEDURE MUST BE ADOPTED.
1. Isolate electrical supply.
2. Loosen the screws securing the fan access panel to the bottom of the unit this will allow the panel slide in the keyhole
slots and can be removed. Move panel to a safe place to avoid damaging.
3. Disconnect wiring loom from terminal block on side of fan scroll.
4. Remove two off M6 screws connecting fan scroll to bulkhead.
