Mandik M Series Guide

Air-handling Units MANDÍK
INSTALLATION
COMMISSIONING
MAINTENANCE
Addition instructions of the hygienic design
R

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
2
Contacts:
MANDÍK, a.s.
Dobříšská 550
267 24 Hostomice
Česká Republika
tel: [phone]
fax: [phone]
email: [email protected]
service department: [email protected]
This manual is an integral part of the technical specifications TPM 088/ 2 Air-handling
Units MANDÍK.
© Copyright MANDÍK, a.s. 202 . Subject to change.

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
3
CONTENTS
GENERALY ....................................................................................................................... 4
INSTALLATION ............................................................................................................... 5
COMMISSIONING ........................................................................................................... 6
OPERATION AND MAINTENANCE................................................................................... 7
4. SERVICE ACCESS .................................................................................................... 0
4.2 REMOVAL AND CLEANING OF THE DOOR SEALING PROFILE ...............................
CLEANING AND DISINFECTION ..................................................................................... 2

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
4
1GENERALY
This document is an extension and an integral part of the general installation manual of
MAN ÍK air conditioning units, series M / P / T / M + / P + / T + (hereinafter AHU),
enclosed with each AHU delivery. Available at
https://mandik.cz/getattachment/df87c4cc-4bf8-4b0d-8ca8-f18adcd08381/AHU-
Control-and-Commisioning-Guide.aspx.
This document specifies the necessary requirements for AHU in a hygienic design for
proper installation, commissioning and maintenance.
AHUs are designed and manufactured in accordance with the following valid norms:
VDI 6022, Blatt
VDI 3803
SWKI VA 04-0
ÖNORM H 602
DIN EN 3779
EN 886
DIN 946-4
SWKI 99-3
ÖNORM H 6020
The design of the AHU is certified by a German authorized person - Hygiene-Institut des
Ruhrgebiets (www.hyg.de). Certificate is available at https://mandik.cz/product-line/air-
handling-units/air-handling-units-mandik

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
5
2INSTALLATION
First, it is necessary to follow all instructions for assembly and installation according to
the general AHU installation manual!
•before installation, the components shall be checked for cleanliness (simple visual
assessment will suffice) by qualified personnel having at least Category A
qualification according to VDI 6022 Part 4
•it is recommended not to schedule the assembly until after completion of dust-
relevant activities in the building
•any packaging and the protection of the component shall only be removed
immediately prior to assembly
•before and during interruptions of assembly work, any open ends or exposed
surfaces shall be protected against the penetration of construction site dust and
moisture
•even after installation is complete, it shall be possible to inspect the AHU with
reasonable technical effort
•if the AHU has been put into operation before the commencement of specified
normal operation of the building, the demonstration of cleanliness and, if
required, cleaning of the air-handling unit including all air ducts shall be
performed immediately before starting specified normal operation
•suitable cable glands shall be used for feed-through of electric cables; pipes shall
be sealed with suitable escutcheons. Cables shall, if possible, be laid outside the
unit. Inside the unit, they should preferably not be laid in conduits and cable
routes should be as short as possible

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
6
Each connection of the two chambers must be additionally sealed inside with a special
sealant from the mounting kit, see the following figure. The sealant must be certified
according to V I 6022 for microbial inertness according to the ISO 846 standard
(method A + C) !!!
before applying after applying
3COMMISSIONING
First, all commissioning instructions according to the general AHU installation manual
must be observed!
•before commissioning, an initial hygiene inspection shall be carried out in
accordance with V I 6022, Blatt 1, Section 7. This inspection is focused on
compliance with the design requirements in accordance with V I 6022, Blatt 1,
Section 6.
•before commissioning the intended air filters properly shall to installed
•before commissioning, check that all inspection and cleaning openings and drains
for cleaning are securely sealed. All condensate drains shall be tested with a
seal around the perimeter of the chamber
use a cover ledge in the case of two
neighboring condensate tray !

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
7
sufficient quantity of water. Quick and complete drainage shall be watched and
documented. This ensures initial filling of the drain traps with sealing water.
•during lifting operations, sealing joints in the unit casing are subject to mechanical
stresses. They shall be checked for tightness.
•it is recommended to equip the system with new, clean air filters after
commissioning and prior to handing the system over to the customer
4OPERATION AND MAINTENANCE
First, all commissioning instructions according to the general AHU installation manual
must be observed!
AHU shall be operated in such a manner to avoid microbial growth on surfaces of air-
handling components, especially air filters, and on surfaces which are wet for technical
reasons. Access to the system components for periodic maintenance shall be ensured!
•in case of short standstills of AHU, as, e.g., when switched off during night times or
for maintenance purposes, the installed dampers (outdoor air, exhaust air and, as
the case may be, supply air) shall close automatically to prevent air from flowing
through the system due to wind or buoyant forces
•additionally, in case of extended standstills of AHU (more than two days), it has
to be ensured that any wet surfaces shall be blown dry! (inner casings, coolers,
evaporators, recovery heat exchangers, condensate tray, humidifiers, …)
The respective switching commands required for automatic dry-blowing shall be
entered in the building automation system.
• The AHU must be regularly inspected at short intervals by trained specialist
personnel to ensure that the hygienic requirements for operation and
maintenance are observed at all times! Hygienic inspections beyond standard
procedures (general installation manual AHU MAN ÍK) are summarized in the
following table:

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
8
3 6 2 24
1. AHU IN GENERAL/CASING/INLTES-OUTLETS
.0 . Clean and repair
.02. Clean
.03. Repair
.04. Clean and repair
Check doors/service accesses for tightness
Check door´s sealing for contamination, microbial
growth, damage
Action if required
Months (intervals)
CHECKLIST FOR OPERATION AN MAINTENANCE OF AHU
Activity
Check for air-side contamination, microbial growth,
damage, and corrosion
Check for condensation and water pooling
2. AIR FILTERS
2.0 . Change affected air
filters
2.02. Repair or replace
2.03. Replace filter stage
2.04.
2.05. Maximum interval until 2. filter
stage is to be changed
Maximum interval until . filter stage is
to be changed
Check differential pressure
Check for unacceptable contamination, damage
(leaks), odours and microbial growth
Check proper tightness of sealing between filters-
filter frame and filter frame-casing
3. FANS
3.0 . Clean and repair
Check contamination, microbial growth,
damage, and corrosion
4. HEAT EXCHANGERS
4.0 . Clean and repair,
replace
4.02. Clean and repair
4.03. Clean and repair
Heaters: Check for contamination, microbial
growth, damage, corrosion, and tightness.
Coolers: Check tube bundle, droplet
eliminator and condensate tray for
contamination, microbial growth, corrosion,
damage, and tightness.
Check drain trap function
5. HEAT RECOVERY
5.0 . Clean, repair
5.02. Repair
5.03. Clean, repair
5.04. Adjust seals, clean,
repair
Check contamination, microbial growth,
damage, corrosion
Check impermeability between supply and
exhaust air
Check condensate tray for contamination and
drain trap function
rotary heat exchangers: check of rotor sealing
tightness

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
9
6. STEAM HUMI IFIER
6.0 . Clean, repair
6.02. Clean, repair
6.03. Clean
6.04. Repair
6.05. Repair
Function-check control valve
Check humidity limiter
Check steam distribution for deposits
Check contamination, microbial growth,
damage, corrosion
Check condensate tray for contamination and
drain trap function
7. EHUMI IFIERS
7.0 . Clean, repair
7.02. Clean, repair
Check contamination, microbial growth,
damage, corrosion (casigns, heat exchanger,
droplet eliminator)
Check condensate tray for contamination and
drain trap function
8. SILENCERS
8.0 .
Clean, repair or
replace; test with
contact slides if
necessary
Check contamination, microbial growth,
damage, corrosion (casigns, coulisses)
•shorter or longer intervals of hygiene checks can be required/be allowed based on
the result of the hazard assessment according to VDI 6022, Blatt , Section 7.5
•extension of check intervals is subject to a well-grounded air-hygiene report by
an expert, e.g. a VDIcertified specialist engineer
•for each AHU, the operator shall maintain an operations log according to VDI
6022, Blatt 4
•Filters - during the air filters changing, any contamination of the environment,
downstream air-conditioning units, and the rooms to be ventilated shall be
avoided. Particular care shall be taken to prevent contamination of the new air
filters to be installed. Personnel involved in changing filters shall wear suitable
protective equipment. Air filters shall be stored in a dry and clean place such
that damage, contamination or moistening can be excluded.
•Steam humidifiers - shall be operated in such a manner that no condensate or
aerosol can enter the air duct system and shall not contain any substances
harmful to health. When the system is shut down, it has to be ensured that the
air humidifiers are switched off early enough to be blown dry while the system is
still running.
•The mandatory tests - microbiological testing of water/surfaces, air measurement,
determination of clean-swept condition, … and its terms of the assessment values,
the required qualifications, the measurement procedure, and the evaluation of
the measurement results are beyond the scope of this manual and these points
are described in VDI 6022, Blatt , Section 8.

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
0
4. SERVICE ACCESS
For cleaning and disinfection is each section (fans, filters, heat exchangers, silencres, …)
accessible from both sides via doors or service panels:
heat exchanger´s section
light switch
service door
with handles/hinges
service door with
clamping brackets

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
4.2 REMOVAL AND CLEANING OF THE DOOR SEALING
PROFILE
The sealing profile can be extended by releasing the pressure ledge with screws M5 with
hex socket 4 around the door:
outer sealing pofile
inner sealing pofile
screw
ledge

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
2
5CLEANING AND DISINFECTION
Cleaning agents and disinfectants shall be used in such a manner that no health hazard
can occur during operation (care should be taken to read the instructions for use of the
agents and to wear protective clothing and gloves)!
•To stop the growth and kill microorganisms, use only chemical disinfectant using
the surface disinfectants listed below.
•For effective disinfection (microbicidal effect) the following procedure should be
followed:
) Mechanical removal of coarse dirt - wiping, sweeping using suitable
agents such as:
-brushes with natural or artificial bristles
-soft rags for cleaning machine surfaces, etc.
-rowels, brooms - must not be placed on the floor, they must hang
(organic impurities generally reduce the effect of disinfectants)
2) Rinse with warm drinking water
3) Cleaning (sanitation) - application of the cleaning solution according
to the manufacturer's instructions given on the product label
(observance: exposure times, concentrations, temperatures, pH of
water)
-without sufficient sanitation, microorganisms are protected by
impurities (biofilms are formed, etc.) and disinfectants cannot act
sufficiently
-removes inorganic and organic substances, reduces the initial
number of microbes
4) Rinsing with warm soft, biologically harmless water - removal of
residual dirt and detergents
5) Visual inspection of cleanliness
6) isinfection - application of the disinfectant solution according to
the manufacturer's instructions on the label. These factors have a
particular effect on the effectiveness of disinfection:
-tightness of the contact of the disinfectant with the surface - the
tighter the contact, the shorter the disinfection time and the
stronger the effect
-sufficient temperature of the solution - in general, a higher
temperature guarantees a better disinfecting effect, but pay
attention to work safety and the possibility of disintegration of
some disinfectants
-concentration - in general a higher concentration guarantees a
better disinfecting effect, but a low concentration is disinfectant
ineffective, on the contrary too high leads to damage to the
disinfected material

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
3
-exact exposure time - fundamental influence on the final effect of
disinfection
-pH of water - many products have disinfectant effect only at a
certain pH
-type and quantity of microorganisms that we want to eliminate
7) Final rinsing with drinking water - removal of disinfectants and
thorough ventilation of the exposed area
8) Drying - preferably spontaneous drying by evaporation to dryness
9) Ensuring the right conditions for storage and disposal of waste
•For effective disinfection (reduction of resistance of microorganisms), it is
recommended to alternate or combine disinfectants.
•It is advisable not to buy chemical disinfectants in large quantities, to ask the seller
for comprehensive documentation meeting the requirements of local laws and
regulations.
•Some disinfectants have a partial cleaning effect (surfactant character) and the
ability to penetrate the dirt, so they can be used as a combined cleaning and
disinfecting agent.
If AHU´s sections have to be cleaned, a method suitable for the respective case shall be
used:
1 Dry Be careful not to damage painted surfaces and
sealed joints
2 Dry Be careful not to damage painted surfaces and
sealed joints
3 Dry
Only for installations that can be pulled out of the
unit
4 Wet Be careful not to damage painted surfaces and
sealed joints
5 Wet Be careful not to damage painted surfaces and
sealed joints
6 Wet Only for installations that are equipped with a
condensate tray and drain
7 Wet Be carefulnot to damage the materials/surface
of the cleaned components
8 Wet Only for installations that are equipped with a
condensate tray and drain
Wet cloth/spraying and vacuuming
Wet brushing and vacuuming
Foam/Low pressure water )
CLEANING METHO S
Method
No. Type
Disinfection with a cloth/spraying
Disinfection with a foam/low pressure fluid 1) 2)
Activity Warning !!!
Dry cloth and vacuuming
Manual brushing and vacuuming
Pressure air

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
4
2345678
inner surface of casings
service doors
door´s sealing profile
inner brackets/console/rails/reinforcements/supports of bulit-in
components
filter frame
frame sealing
flexible connection/suction sealing/vibration isolators
impeller (metal/composite)
frame/collectors
lamellas
frame
lamellas
frame
lamellas
Silen-
cers
coulisses
Conden-
sate
tray/trap
surface
Heat
exchangers
Heat
recovery -
plate
Heat
recovery -
rotary
Method No.
Components
Casing
METHO No. vs. APPLICABLE
FilterFans
) In the case of heat exchangers (heaters/coolers/recuperators) clean coils
carefully! Be careful of possible damaging the coil´s lamelas (bending) by
cleaning medium pressure! Use only low pressure equipment up to a maximum
of 20 bar.
2) In the case of heat exchangers (heaters/coolers/recuperators) use recemended
cleaning and disinfecting agents listed below (surfactants based on a Quaternary
ammonium, …).

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
5
The internal surfaces of AHU are designed as microbially inert meeting the ISO 846
standard, method A (fungi, fungi) and method C (bacteria), they are:
-painted metal parts provided with a special antimicrobial paint (casings,
consoles, brackets, …)
-plastic components (free impellers of fans, parts of louvre dampers)
-rubber components (seal) - EP M
-putties (casing, condensate tray)
-stainless steel components 1.4301 (condensate tray/trap, frames of
coolers/filters)
-aluminum components (lamellas of heat exchanger/recovery, droplet
separators)
-copper components (collectors of heat exchangers)
Even though some parts have an antimicrobial coating, routine cleaning and
disinfection cannot be neglected!
ue to material damage and safe operation of the air handling unit, the chemical
cleaning and disinfecting agents used must meet the following properties:
-alcohol free, chlorine free, aldehyde free, formaldehyde free
-never use corrosive or corrosive substances
-never use strong acids or bases (optimal pH range 6-8)
It must be ensured that cleaning and disinfecting agents are selected and used only by
qualified hygiene professionals!
o not use abrasive powders, scouring pads or other materials that could damage the
surface finish of painted parts!
Selected cleaning and disinfecting agents should be tested by Verbund für Angewandte
Hygiene e.V. (VAH) and stored in the list available at https://vah-liste.mhp-verlag.de/
The company MAN ÍK, a.s. recommends these effective bactericidal and fungicidal
substances for the above-mentioned surfaces:
-escosept Spezial, Dr. Schumacher GmbH, bactericidal, Active ingredient:
Quaternary ammonium
-Sanosil, SANOSIL AG, bactericidal, fungicidal, Active ingredient: Hydrogen peroxide

KJM MANDÍK Installation, Commissioning, Maintenance
IZU .0 0 /202 MANDÍK, a.s., www.mandik.cz
R
6
-RHEOSEPT-W plus, NW-Chemie GmbH, bactericidal, fungicidal, viricidal, Active
ingredient: Quaternary ammonium
-RHEOSEPT-W plus Wipes, NW-Chemie GmbH, bactericidal, fungicidal, viricidal,
Active ingredient: Quaternary ammonium
-Mikrobac® forte, BODE Chemie GmbH, bactericidal , yeasticidal, Active ingredient:
Quaternary ammonium , Alkylamine derivative
-Hexaquart® pure, B. Braun Medical AG, bactericidal, fungicidal, Active ingredient:
Quaternary ammonium