Juwent OptiMax-10 User guide

OPTIMAX
COMPACT AIR HANDLING UNIT
I. CONTACTS
II. ORIGINAL INSTRUCTION MANUAL
III. SAMPLE EC DECLARATION OF CONFORMITY
IV. WARRANTY TERMS
V. DEVICE COMMISSIONING REPORT
VI. INSPECTION AND MAINTENANCE CHART
VII. SERVICE REQUEST
VIII. ADDITIONAL DOCUMENTS
»» Technical Data Sheet
»» Declaration of Conformity
»» List of Components Installed in the Device;
»» Specication of Automatic Equipment Components;
»» List of Elements Attached to the Unit;
Szymański, Nowakowski General Partnership
31 Lubelska Str., 08-500 Ryki
phone [phone], fax [phone]
POLAND
Please read this instruction manual carefully before beginning any work.
RYKI 2016
ISSUE 1 EN

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I. CONTACTS
Szymański, Nowakowski General Partnership
31 Lubelska Str., 08-500 Ryki
phone [phone], fax [phone]
POLAND
Export department
mob.[phone]
mob.[phone]
[email protected]

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OPTIMAX
COMPACT AIR HANDLING UNIT
in sizes 10÷50
AIR HANDLING UNITS ARE MADE IN ACCORDANCE WITH EN 1886 AND EN 13053.
II. ORIGINAL INSTRUCTION MANUAL

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TABLE OF CONTENTS
1. INTRODUCTION 5
2. INTENDED USE 5
3. DESIGNATION 5
4. SERVICE SIDE 6
5. WORKING PARAMETERS 6
6. WORKING CONDITIONS 6
7. UNIT VERSION 7
8. DESIGN 7
8.1. BASE SECTION 7
8.2. WATER HEATING COIL SECTION 8
8.3. WATER HEATING COIL AND WATER OR FREON COOLING COIL SECTION 9
8.4. SILENCER SECTION 10
8.5. OPTIONAL COMPONENTS 10
9. TECHNICAL DATA 11
9.1. AIR CAPACITY RANGE 11
9.2. DIMENSIONS AND WEIGHTS 12
10. HANDLING AND STORAGE 14
11. SETTING, ASSEMBLY, CONNECTION OF RELATED SYSTEMS 15
11.1. SETTING 15
11.2. SETTING LOCATION 15
11.3. CONNECTING SECTIONS 16
11.4. CONNECTING VENTILATION DUCTS 16
11.5. CONDENSATE DRAINAGE 17
11.6. CONNECTING HEATING AND COOLING COILS 18
11.7. ELECTRICAL CONNECTION 19
12. AUTOMATIC EQUIPMENT 21
12.1. AUTOMATIC EQUIPMENT COMPONENTS 22
13. PREPARING FOR START-UP 26
13.1. WIRING SYSTEM 26
13.2. FILTERS 26
13.3. WATER HEATING COIL 27
13.4. WATER COOLING COIL 27
13.5. FREON EVAPORATION COIL 27
13.6. ROTARY HEAT EXCHANGER 27
13.7. FAN UNIT 27
14. START-UP AND ADJUSTMENT 28
14.1. MEASURING AIR QUANTITY AND ADJUSTING EFFICIENCY OF THE UNITS 29
14.2. ADJUSTING WATER HEATING COIL 29
14.3. ADJUSTING WATER COOLING COIL 29
14.4. ADJUSTING FREON EVAPORATION COIL 30
15. USE AND MAINTENANCE 30
15.1. AIR DAMPERS 31
15.2. FILTERS 31
15.3. WATER HEATING COIL 32
15.4. WATER COOLING COIL 32
15.5. FREON EVAPORATION COIL 33
15.6. ROTARY HEAT EXCHANGER 33
15.7. SILENCING SECTION 33
15.8. FAN UNIT 34
15.9. FANS 34
15.10. FANS MOTORS 34
16. CONTROL MEASUREMENTS 35
17. DISPOSAL 35
18. OHS INSTRUCTIONS 35
19. INFORMATION 35

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1. INTRODUCTION
To ensure correct and safe operation of the device thoroughly learn the contents of the herein
documentation, assembly and use of the units in accordance with the descriptions herein and
respect all safety conditions.
Works related to unloading of pallets with components of the unit, handling of pallets, elements and
unit blocks, connecting the systems within the unit, as well as maintenance must be performed by
qualied personnel or supervised by authorized personnel.
The qualied personnel shall be considered people, who in respect of the completed training, working
experience and knowledge of essential standards, documents and regulations on occupational
safety and working conditions have been authorized to perform the necessary works and are able to
recognize and avoid potential hazards.
Assembly of the unit, connection of the related systems, commissioning, use and
maintenance must be conducted in accordance with relevant directives and regulations
valid in a country of the device installation.
It is recommended to use services of JUWENT Authorized Service Points when installing,
commissioning, performing post-warranty repairs, inspections and maintenance of the
devices.
Make sure that the documentation is always placed nearby the device and is easily
accessible to the Service personnel.
2. INTENDED USE
Air handling units are designed for use in ventilation and air conditioning systems, both in public
utility and residential as well as industrial buildings. The applied sub-assemblies enable:
»ltering of the fresh air and the air being exhausted from the handled rooms;
»all year long energy recovery which allows for fresh air pre-heating in winter, and fresh air
pre-cooling in summer;
»heating of ventilation air in heating season;
»cooling of ventilation air in summer;
»silencing of noises generated by operating fan assemblies.
3. DESIGNATION
Compact air handling unit OptiMax -50- P-W-EC/ TZ-TW - NLWCLW
Unit size
10, 20, 30, 40, 50
Service side
P – right, L – left
Version
W - indoor
ZK - 4 exible connectors, ZC - 3 exible connectors + air intake cowl
ZW - 3 exible connectors + air exhaust cowl
ZV - 2 exible connectors +air exhaust cowl + air intake cowl
Motor type
AC - asynchronous, EC - electronically commutated
Silencers
TZ - at external air side, TW - at internal air side,
TW - TZ silencers at external and internal air side
Additional sections
NLW – water heating coil, NLWCLW - water heating coil + water cooling coil,
NLWCF - water heating coil + freon evaporation coil

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4. SERVICE SIDE
LEFT SERVICE SIDE RIGHT SERVICE SIDE
5. WORKING PARAMETERS
Casing parameters conform to EN 1886:2008:
»heat inltration coefcient - class T3
»heating bridges inuence coefcient - class TB1
»mechanical strength of the casing - class D2
»leak tightness - class L2
Working parameters of n water heating coil:
»min. temperature of supply medium 30°C
»max. temperature of supply medium 110°C
»max. working pressure 1.5MPa
Working parameters of n water cooling coil:
»min. temperature of supply medium 1°C
»max. temperature of supply medium 16°C
»max. working pressure 1.5MPa
Temperatures of air being transferred:
»min. temperature of air being transferred -35°C
»max. temperature of air being transferred +35°C
Ambient temperature:
»min. ambient temperature -35°C
»max. ambient temperature +50°C
6. WORKING CONDITIONS
The units must not be used when:
»the air being transferred may contain solid, pasty, bre and aggressive substances
causing corrosion or decomposition of zinc, copper, steel and aluminium;
»temperature and humidity values for external air in summer or winter are outside
limits determined for Europe;
»operation in maritime or tropical climate is expected;
»the air is excessively dusted and involves very often replacement of air lters within
the unit;
»power supply of water heating coil is unreliable for a long period of time that even
operable automatic equipment would not protect the exchangers against freezing
and possible resulting losses (damage to the heating coil, damages due to room
ooding).

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7. UNIT VERSION
Individual elements of the unit are made of the following materials:
»external side panels, oor panels, feet – galvanized sheet DX51D,
»external side panel – aluzinc type sheet DX51D+AZ185-A-SE,
»drip trays – stainless steel X5CrNi18-10 (1.4301),
»casing structure - aluminium,
»blades of the air dampers – aluminium,
»lling of rotary heat exchanger – aluminium,
»heating, cooling coil ns – aluminium,
»heating, cooling coil tubes and collectors - copper,
»all the slots on the contact with casing elements are lled with silicone,
»door panels seals are made of EPDM,
»drainage of condensate protected against drawback with siphons,
»surfaces of removable splitters of silencers resistant to abrasion,
»ne lters, at least F5 class,
»very ne lters - F7 class,
»fans with direct drive.
8. DESIGN
Series of types includes 5 sizes of units (10, 20, 30, 40, 50) within the capacity from 500 up to
18,000 m3/h. Series of types includes:
»base section;
»water heating coil section;
»common water heating and water cooling coil section;
»common water heating and freon evaporation coil section;
»silencing section.
Due to their design and materials used, the units do not emit non-ionising radiation.
8.1. BASE SECTION
The section has been designed as air-supply and exhaust type in double-deck conguration. The
section comprises: casing, dampers, lters, fans, rotary heat exchanger, condensate tray.
8.1.1. Casing
Casing construction bases on the spacious frame made of aluminium prole. Wall, roof and
base planes are heat insulation panels made of 45 mm thick mineral. Inside the panel special
reinforcements are used thanks to which the whole structure is stiff and strong. At the service side
there is hinged inspection door closed using clamps with thumb screws. In order to ensure proper
tightness of the whole casing the panels are sealed with special adhesive, and inspection door is
provided with double seals.
To keep tightness between base section and other sections, air supply inlets and outlets have
insulation on their circuits. Additionally, in corners of the casings at air supply inlet and outlet sides
steel section connectors with oblong holes are tted. When connecting sections, this solution
enables to level any slight unevenness in surface for setting the unit both vertically, and horizontally.
To ensure the units are set properly on the ground, in casings of base sections in 10, 20, 30 sizes,
load-bearing feet are provided. In other sizes the casing is equipped with load-bearing base with
handles for vertical transportation, made from galvanized steel section.

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8.1.2. Air dampers
Base sections are equipped with 2 multi-plane dampers with seals. They are mounted inside the
casing. One is located at the fresh air inlet side, and the other at the inlet of the air being exhausted
from rooms. Thanks to such solutions damper actuators are also located inside the casing, and
protected against the precipitation.
8.1.3. Filters
Base sections are equipped with ne M5 panel lters at the air supply side and the removed air side,
and with very ne F7 bag lters at the air supply side. Between each lter section and along guides,
special seals are applied. Number of lter sections and their size depends on the unit size.
8.1.4. Fans
In base sections centrifugal fan with direct drive powered by AC or EC 3x400V motors have been
used. Depending on unit size, a total of 2 or 4 fans are used. Rotors in all unit sizes, except 10, are
made of plastic.
8.1.5. Rotary heat exchanger
In base sections, high-efciency condensing rotary heat exchangers are applied. In order to minimize
air leaks between air supply and exhaust parts, exible circumferential seal and horizontal brush seal
have been applied. The rotor is driven by a belt transmission with 3~230V/50Hz powered motor with
cylindrical gearmotor.
8.1.6. Condensate tray
Under the rotary heat exchanger rotor, in the casing oor a tray made of stainless steel has been used
to collect condensate with condensate drains, provided outside the casing. On the tray perimeter,
between the tray and the casing silicone seals are tted.
8.2. WATER HEATING COIL SECTION
The section has been designed as air-supply type in single-deck conguration. The section comprises:
casing, n water heating coil.
8.2.1. Casing
Casing construction bases on the spacious frame made of aluminium prole. Wall, roof and
base planes are heat insulation panels made of 45 mm thick mineral. Inside the panel special
reinforcements are used thanks to which the whole structure is stiff and strong. At the service side
inspection door is mounted; it is closed using clamps with thumb screws. In order to ensure proper
tightness of the whole casing the panels are sealed with special adhesive, and inspection door is
provided with double gaskets.
To keep tightness between the connected sections, air supply inlets and outlets have insulation on
their circuits. Additionally, in corners of the casing at air supply inlet and outlet sides, steel section
connectors with oblong holes are tted. When connecting sections, this solution enables to level any
slight unevenness in surface for setting the unit both vertically, and horizontally.
In order to ensure proper setting of the section on the ground, the casing, in all sizes, is equipped
with load-bearing feet.

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8.2.2. Heating coil
Fin heat exchanger made of copper and aluminium is tted. It is supplied with heating medium as
water or water with ethylene or propylene glycol. The heat exchanger is accessible from the unit’s
service side. While the heating medium connectors are provided at the opposite side, on back of
the casing. Such solution allows the exchanger to be accessed freely from the service side. Thanks to
this removal of the exchanger, e.g. for cleaning or periodical maintenance does not require removal
of this part of the system that is mounted directly by the unit. It is only necessary to empty the heat
exchanger and unscrew unions on the exchanger connections and push out the exchanger from the
casing onto the service side.
8.3. WATER HEATING COIL AND WATER OR FREON COOLING COIL SECTION
The section has been designed as air-supply type in single-deck conguration. The section comprises:
casing, n water heating coil, n water cooling coil or freon evaporation coil, droplet eliminator, tray.
8.3.1. Casing
Casing construction bases on the spacious frame made of aluminium prole. Wall, roof and
base planes are heat insulation panels made of 45 mm thick mineral. Inside the panel special
reinforcements are used thanks to which the whole structure is stiff and strong. At the service side
there is hinged inspection door closed using clamps with thumb screws. In order to ensure proper
tightness of the whole casing the panels are sealed with special adhesive, and inspection door is
provided with double gaskets.
To keep tightness between the connected sections, air supply inlets and outlets have insulation on
their circuits. Additionally, in corners of the casing at air supply inlet and outlet sides, steel section
connectors with oblong holes are tted. When connecting sections, this solution enables to level any
slight unevenness in surface for setting the unit both vertically, and horizontally.
In order to ensure proper setting of the section on the ground, the casing, in all sizes, is equipped
with load-bearing feet.
8.3.2. Water heating coil
Heat exchanger made of copper and aluminium is tted. It is supplied with heating medium as
water or water with ethylene or propylene glycol. The heat exchanger is accessible from the unit’s
service side. While the heating medium connectors are provided at the opposite side, on back of
the casing. Such solution allows the exchanger to be accessed freely from the service side. Thanks to
this removal of the exchanger, e.g. for cleaning or periodical maintenance does not require removal
of this part of the system that is mounted directly by the unit. It is only necessary to empty the heat
exchanger and unscrew unions on the exchanger connections and push out the exchanger from the
casing onto the service side.
8.3.3. Water cooling / freon evaporation coil
Heat exchanger made of copper and aluminium is tted. It is supplied with chilled water with
ethylene or propylene glycol or, freon. Heat exchangers are accessible from the unit’s service side.
While the chilled water connectors are provided at the opposite side, on back of the casing. Such
solution allows the exchanger to be accessed freely from the service side. Thanks to this removal of
the exchanger, e.g. for cleaning or periodical maintenance does not require removal of this part of
the system that is mounted directly by the unit. It is only necessary to empty the heat exchanger and
unscrew unions on the exchanger connections and push out the exchanger from the casing onto
the service side.

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8.3.4. Condensate tray
Under the cooling coil, in the casing oor a tray made of stainless steel sheet has been used to collect
condensate with condensate drains, provided outside the casing. On the tray perimeter, between
the tray and the casing silicone seals are tted. The tray is tted with guides, where the cooling coil
is mounted. This enables use of the whole volume, owing to which condensate is drained efciently
out of the section.
8.3.5. Droplet eliminator
Droplet eliminator comprises panels made of plastics. Labyrinth-type system to trap the air-entrained
water molecules provides efcient operation even up to 4 m/s. After opening the inspection door it
can be removed freely for maintenance or cleaning.
8.4. SILENCER SECTION
The section has been designed as air-supply and exhaust type in double-deck conguration. The
section comprises: casing, removable splitters.
8.4.1. Casing
Casing construction bases on the spacious frame made of aluminium prole. Wall, roof and
base planes are heat insulation panels made of 45 mm thick mineral. Inside the panel special
reinforcements are used thanks to which the whole structure is stiff and strong. At the service side
there is hinged inspection door closed using clamps with thumb screws. In order to ensure proper
tightness of the whole casing the panels are sealed with special adhesive, and inspection door is
provided with double seals.
To keep tightness between the connected sections, air supply inlets and outlets have insulation on
their circuits. Additionally, in corners of the casing at air supply inlet and outlet sides, steel section
connectors with oblong holes are tted. When connecting sections, this solution enables to level
freely any slight surface unevenness of setting both vertically, and horizontally.
In order to ensure proper setting of the section on the ground, the casing, in all sizes, is equipped
with load-bearing feet.
8.4.2. Removable splitters
Removable splitters of 100 mm in thickness are tted. They are made of mineral wool and covered
with thin cloth “veil” type in order to eliminate inltration of mineral wool parts to the air. Removable
splitters are designed to be tted horizontally and can be removed by pushing them out down the
guides. This solution enables access to the section for easy cleaning, and connection of the silencer
section to other sections at the inner side of the casing.
8.5. OPTIONAL COMPONENTS
8.5.1. Flexible connector
Designed for connecting the unit to a duct system exibly so that possible unit vibrations are
not transferred onto ventilation ducts. Comprising strong fabric and mounting frames facilitating
connection to duct anges.
8.5.2. Air intake cowl
Designed for units in external version. Specially shaped drip with trays on the perimeter protect
the unit inlet against direct penetration of precipitation, e.g. snow or rain. Additionally, inside the
air intake cowl a droplet eliminator is built-in to provide protection of the units against possible
entrainment of rain drops or light snowakes. Air intake cowl inlet has an inlet grille protecting the
units against, e.g. birds.