OPERATION AND MAINTENANCE MANUAL
DTR MCK v.2.4
PAGE
GDYNIA
MODULAR AIR HANDLING UNITS
MCKS, MCKH, MCKP
2017 EN
44/45
KLIMOR Spółka z ograniczon
ą
odpowiedzialno
ś
ci
ą
Sp.k., 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: (+48 58) 783-98-88; Tel.: (+48 58) 783-99-99
Service -
Fax: (+48 58) 783-98-88; Tel.: (+48 58) 783-99-50/51 Mobile: (+48) 510 098 081
Information in this document is subject to change
email:
-
office
-
service
12. ADDITIONAL INDICATIONS AND INFORMATION REGARDING AHUS IN SWIMMING
POOL VERSION (MCKP)
The
MCKP
AHUs in the swimming pool version are constructed based on the
MCKS
AHUs, taking into account
full
anti-corrosion protection of internal surfaces of the covers and structural elements, which are protected with
epoxy paints or appropriate materials (stainless steel or galvanized, coated) as well as application of devices
in epoxy version
–
cross-flow exchanger and fans in epoxy version. Fin packs of the CuAl exchangers are
made in the epoxy version or the entire exchanger is protected in the cataphoresis process.
Below there are shown differences and similarities in structure and technology applied in the MCKS and MCKP
AHUs.
12.1. Block illumination
The swimming pool AHUs are equipped with LED illumination (12V) in the following blocks: preliminary filter, recircu-
lation, fan, heat recovery with cross-flow heat exchanger. In each block with illumination there is a LED strip installed.
A wire runs from the illumination module to the terminal box mounted on the top block cover. If the system includes
two illumination blocks, the wires can run to a joint terminal box. The control system supplier has to allow for connec-
tion of illumination in the control system (Fig. No. 44).
12.2.
Inspection eyeholes
Inspection eyeholes (portholes
Ø
200) are located in front covers and panels, in sections equipped with illumination.
They enable, without switching off the AHU, assessing the contamination degree of the interior and its fittings as well
as observation of the work of the AHU individual elements.
12.3
The filtration materials of the G4÷M5 bag filters are non-hygroscopic and are provided with certificates required
for the security designation.
12.4
The damper blades at exhaust air side are made of aluminum or PVC.
12.5
The filtration materials of the F7÷F9 bag filters are non-hygroscopic and are provided with certificates required
for the security designation.
12.6
The tray below the heat recovery exchanger is made of stainless steel sheet.
12.7
The blades of the exchanger droplet separator are made of PPTV profiles.
12.8
All tray outlets are equipped with plastic drain traps, which are described in Fig. No. 32 and Fig. No. 33.
It is necessary to arrange appropriate foundation height to enable installation and connection of the drain trap for
higher pressures.
12.9
The cable glands are installed at the electrical motors only. The glands for connecting actuators and illumination
are installed on the casing (frame) only in case of supplied and assembled control system. The glands are designed
to ensure appropriate tightness and internal cleanliness class.
12.10
All the materials used to make the unit and the insert elements are resistant to commonly used disinfecting
agents.
12.11
Access enabling washing and disinfection of the AHU interior is provided by some technical solutions including:
a)
All heat exchangers such as heaters are equipped with threaded connectors. Connection of these elements
should be carried out so that it is possible to remove each exchanger and humidifier from the AHU.
b)
Top back covers are riveted and sealed with silicone once installed, sharp edges and irregularities are filled with
silicone in order to provide smooth surface; all fixing elements (filters guides, exchanger ribs) are covered with
silicone in a similar way. The aim is to eliminate all spots where hard-to-eliminate bacteria centers may form (Fig.
No. 49)
c)
A silicone gasket has been used in place of rubber gasket for sealing covers and panels.
12.12.
Once the AHU is assembled it is necessary to seal channel bars between the sets using silicone (Fig. No 49).
NOTE!
1. For filling gaps listed in point 12.11 and 12.12 the sanitary silicone is used.
2. Due to presence of various aggressive agents (acids and chlorines) in swimming pool's air some rusty
yellow-brown deposits may form in the AHU
–
in vicinity of droplet separators and drip trays
–
as a re-
sult of limescale forming out of condensate. That is why it is recommended to carry out regular, monthly
inspections of these areas in order to eliminate chemical and mechanical deposits.
Removal of deposits requires moistening the surface with tap water and applying CYLIT-type descaling
agent (commercially available) or SANI KALKRENT industrial agent, which is sold by DAUNPOL compa-
ny from Gdynia (phone +48 586640801). After about half an hour wipe the surface with a cloth moistened
with water and then wipe dry.
