35
7.7.2 Maintenance
The drop eliminator should be subjected to periodical maintenance at every three months.
7.8 HEAT PIPE HEAT RECOVERY HEAT EXCHANGER
All provisions stated under the heading of 2. GENERAL SAFETY must be applied during the
commissioning and maintenance of the heat pipe heat recovery heat exchanger.
7.8.1 Initial Start-up
The heat recovery heat exchanger system comes pre-filled with R134a refrigerant. Since the unit
operates on the principle of evaporation and condensation of gas within a closed circuit, it has no
moving parts.
• Check coil fins for damages.
• Check bypass sheets around the coil frame; there should be no gaps.
7.8.2 Maintenance
It is recommended that maintenance procedures be carried out every three months. These maintenance
procedures are of critical importance for both heating recovery efficiency and the total efficiency of the
system.
7.9 ROTARY TYPE HEAT RECOVERY UNIT HEAT EXCHANGER
All provisions stated under the heading of 2. GENERAL SAFETY must be applied during the
commissioning and maintenance of the rotary type heat recovery heat exchanger.
Measures must be taken to prevent sudden starting of the rotary type heat recovery unit. The
unit can cause injuries due to its revolving parts.
7.9.1 Initial Start-up
• Make sure there are no parts which prevent the rotation of the rotor. Turn the rotor once
manually in the direction of rotation before initial start-up.
Periodical Maintenance on the Droplet Eliminator:
• Check whether the drop eliminator conforms to hygiene standards, and check for
accumulated dust, corrosion, and damages.
• The grime which forms on drop eliminator profiles should be cleaned using pressurized
water.
Periodic Maintenance of the Heat Pipe Heat recovery Heat Exchanger:
• Check whether the heat exchanger conforms to hygiene standards, and check for
accumulated dust, corrosion, and damages.
• Check fin surfaces, if there are any dents, straighten using a fin comb.
To Next Page