Tc 7. General Maintenance And Overall Control - ThermoKey DFX Serie Manual De Instrucciones

ThermoKey Heat Exchange Solutions
<< MIN. 1m >>
fig.3 – Minimum distance from walls
N.B.: Be careful not to block the inlet or the outlet air flow of the fanmotors and the heat exchangers.

TC 7. General maintenance and overall control

TC 7.1
Before performing any maintenance, make sure that the power supply of the unit has been sectioned off: the
electrical parts may be connected to automatic controls. All maintenance operations must be carried out by
qualified and experienced personnel.
TC 7.2
The unit mainly consists of: a finned pack heat exchanger, a structural frame in metal sheet panels, metal sheet covers,
accessible drip trays and fanmotors. In units with electric defrosting, stainless steel armoured heating elements with
vulcanised terminals are enclosed in the heat exchanger and mounted on the drip trays with locking devices that
prevent displacement (see fig.4).
TC 7.3
Periodically check the fixing points of the unit, the electrical connections and the connections to the refrigerant line.
TC 7.4
Provide for periodic cleaning of the casing and the exchanger using suitable detergents or possibly water with neutral
pH soap. Do not use aggressive cleaning agents, solvents, acids or basic solutions containing chlorine or ammonia.
Avoid the use of abrasives in general. In case of use of sanitising agents, check their compatibility with the materials.
If in doubt, contact the Manufacturer.
TC 7.5
Check the effectiveness of defrosting. For units with electric defrosting, periodically check the operation of all heating
elements. The Manufacturer will not respond in any way for damages and defects caused by undetected malfunctions
(eg. harmful ice accumulations).
13 MT TC A DF EN 04 2017
<< MIN. 1m >>
TC 7.6
Provide for the replacement of faulty heating elements. Pay special attention during installation to prevent damage to
vulcanised insulations; properly restore all connections (see enclosed diagrams) and all locking systems to prevent the
displacement of the same during operation.
TC 7.7
Inspection and maintenance intervals depend on the type of cell, therefore they need to be defined by qualified and
experienced personnel.
TC 7.8
For any operation on the unit not described in this manual, please contact the Manufacturer.
HINGED
EXTERNAL DRIP
TRAYS
fig.4 – Components
a) The front covers are removable to facilitate access to the manifolds compartment during the installation and maintenance
phases. The closing covers are assured by screws.
b) The lower covers are removable to allow full access to the manifolds compartment.
c) The drip trays are fitted with hinges for easy access to the internal drip tray to allow replacement of the defrosting
heating elements or for cleaning operations. They can be disassembled if replacement is needed.
d) Each fanmotor is equipped with a structural guard grille wich allows replacement operations completely from the
outside.
MT TC A DF EN 04 2017
Technical Manual TC Instruction and technical data
FRONT COVERS
THAT CAN BE
OPENED
FANMOTORS
REMOVABLE
LOWER COVERS
14