Fan; Heat Exchanger; Electrical Heater - Salda RIRS 400 V EKO 3.0 Series Mounting And Installation Instructions Manual

18.2. FAN

- Maintenance and repair should only be performed by experienced and trained staff.
- The fan should be inspected and cleaned if needed at least once a year.
- Be sure the fan is disconnected from power source before performing any maintenance or repair.
- Proceed to maintenance and repair after any rotation in the fan stopped.
- Observe staff safety regulations during maintenance and repair.
- The motor is of heavy duty ball bearing construction. The motor is completely sealed and requires no lubrication for the life of the motor.
- Detach fan from the unit (1-2-3).
- Impeller should be specially checked for buil-up material or dirt which may cause an imbalance. Excessive imbalance can lead to accelerated
wear on motor bearings and vibration.
- Clean impeller and inside housing with mild detergent, water and damp, soft cloth.
- Do not use high pressure cleaner, abrasives, sharp instruments or caustic solvents that may scratch or damage housing and impeller.
- Do not plunge impeller into any fluid.
- Make sure, that impeller's balance weights are not moved.
- Make sure the impeller is not hindered.
- Mount the fan back into the unit. Replace fan guards and connect the fan to power supply source (3-2-1).
- If after maintenance or repair the fan does not start either thermal protection contact activates automatically, contact the manufacturer.
- During the maintenance do not hold the fan by the impeller, it might cause disbalance of impeller or damage it. Hold the fan by the casing.

18.3. HEAT EXCHANGER

Be sure the unit is disconnected from power source before performing any maintenance or repair.
Proceed to maintenance and repair after any rotation in the fan stopped.
Clean it once a year.
The maintenance works for the rotor heat exchanger shall be carried out once a year.
Ensure that the gaps of the heat exchanger are not contaminated, the seal brushes are not worn, the belt drive is not worn and the clamp assem-
blies are tight.
The rotor heat exchanger can be easily removed from the unit by disconnecting the power supply cable of the heat exchanger motor (Pic. 1-2).
The heat exchanger is cleaned using the solution of warm water and non-corrosive toward aluminum alkaline agent or the air stream. It is not
recommended to apply direct stream of liquid as it can harm the heat exchanger.
It is NECESSARY to protect the motor of the heat exchanger from the moisture and liquid while cleaning the heat exchanger.
CAUTION! It is forbidden to use the heat exchanger if the fi lters are removed!

18.4. ELECTRICAL HEATER

Electrical heater does not need to be serviced additionally. It is compulsory to change filters as described above.
Heaters have 2 thermal protections: automatically self-resetting, which activates at +50°C and the manually restored, which activates at +100°C.
After the activation of the manually restored protection, the unit must be disconnected from the power supaply. Wait until the heating elements cool
down and the fans stop rotating. After identifying and removing the reason of failure, to start the unit, press the "reset" button. The failure can be
identified only by a qualified professional.
It's possible to take out electrical heater, if there is a need. Unplug the X6 connector from the automation box and pull the heater together with the
attached wiring harnesses.
10 | EN RIRS 400-700 V EKO 3.0 v2019.06