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User Instruction
CAIROX
rev1
–
28/01/2022
* - non standart option. Fore more information please contact us : www.cairox.com
SERVICE
No special service is required for electrical heaters, only to check electrical connection not less than 1 time per
year.
TROUBLESHOOTING
No heating from
heater
1.
If the manual protection is activated, check for a fault before pressing the RESET
button. If the fault is identified after it has been rectified, press the RESET button
using a screwdriver or similar object.
2.
No power supply to heater
–
check all external electrical connection components
(relays, switches).
3.
Temperature sensor fault. Check sensor resistance, it must be
10kΩ
at 25°C.
4.
Pressure switch fault. Check if pressure in system is set correctly (check the
pressure when air
fl
ow is not less than 1,5m/s).
5.
If LED 1 lights continuously it means that there is a failure of: PTC (air velocity)
sensor, supply (TJ-K10K) or room (NTC10) air temperature sensor, potentiometer on
the top of the heater casing, wired remote control panel TR5K.
6.
When the heater power supply is switched on, after power supply interruption or
after any failure, controller is in preparing mode for 30 seconds.
7.
PCB fault. Contact: [email protected]
Heater gives full
output, not by set
point
1.
Temperature sensor fault. Check sensor resistance, it must be
10kΩ
at 25°C.
2.
Air
fl
ow sensor fault. Check sensor resistance. It must be
22Ω
between
X15…X16
and
10Ω
between X15...X18. Sensor must be clear.
3.
When the heater power supply is switched on, after power supply interruption or
after any failure, controller is in preparing mode for 30 seconds.
4.
Triacs fault. Contact: [email protected]
5.
PCB fault. Contact: [email protected]
Automatic circuit
breaker switching
off
1.
Check circuit breakers data, it must correspond to heaters electrical data.
2.
Check isolation of connection cables, wires, check is heater grounded.
3.
Check power supply source data, it must correspond to heaters electrical data.
Protection thermostat
cut
off
1.
Low air
fl
ow speed through heater. Check filters, fans, ducts of system.
2.
Pressure switch fault. Check if pressure in system is set correctly (check the
pressure when air
fl
ow is not less than 1,5m/s).
WARRANTY
1.
Manufacturer declares
2 years
warranty term from the date of manufacturer's invoice. Warranty is applied
in case if all requirements of transporting, storing, installation and electrical connection are fulfilled.
2.
In case of damaged or faulty product during warranty term customer must inform producer in 5 days and
deliver product to manufacture as soon as possible at customer's costs. In other case warranty is not valid.
3.
Manufacturer is not responsible for damages which occur during transportation or installation.
IMPORTANT:
If failure appears, power supply must be switched
off
and only then performed fault
elimination works.
