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Fig. 5 - Vertical transport using a lifting beam

NOTE: For hoisting please ensure that the weight is 
evenly distributed.

1.5 - Horizontal transport

For horizontal movement pallet lifters or transport 
skids can be placed under the installation frame or 
under the lifting bars. It is important that these support 
the lifting points. At no time should the cross beams at the 
ends of the unit sections be used for jacking or tracking 
the AHU. FOR HORIZONTAL TRANSPORT 
ALWAYS PROVIDE SUPPORT UNDER THE 
LIFTING POINTS. The use of pipes as rollers can 
result in damage to the installation frame.

Fig. 6 - Horizontal transport using rollers

2 - PREPARATION FOR ASSEMBLY

The following material is supplied as standard by 
Systemair B.V.:
• 

Installation, maintenance and operating 
instructions

• 

Lifting instructions

• 

II A declaration

• Kit
• 

Connecting bolts/screws

• 

Connecting strips/screws

• 

Lifting bars

The following material is supplied as an option by 
Systemair B.V.:
• Siphon
• 

Anti-vibration mats

• 

Outside air suction grille

• 

Heat recovery wheel control

• 

Steam generator plus accessories

• 

Minihelic and Allen key instructions

• 

Door key

Check that all necessary parts are supplied with the 
AHU.

Measure the location and make sure it is tidy. The floor 
of the installation area should be level and flat to avoid 
connection problems. Any uneven surfaces should be 
evened out with infill plates.

Determine the correct assembly sequence of the AHU 
sections. Use the most logical sequence, taking the 
location into account. Begin with the casing section 
that must be positioned on the highest part of the floor, 
so that the other casing sections can be added around it.

3. LIFTING INSTRUCTIONS

3.1 - General

There are transport and lifting instructions attached to 
the AHU.

3.2 - Lifting bar certification

The lifting bars supplied are for single use and certified 
in accordance with Machinery Directive 98/37/EC, 
annex II-A. Selection, checking and testing of the 
lifting bars is supervised by a qualified person in 
accordance with the EKH (“Erkende Keurbedrijven 
Hijs- en Hefmiddelen”) work instructions.

Registration mark and number:
• 

LCH1 + 1A

• 

LCH2 + 2A

3.3 - Fastening of the lifting bars

• 

 Remove the bolt and the locking plate on one side 
of the lifting pipe.

 

4 | 

HHFlex Air Handling Units

Summary of Contents for HHFlex

Page 1: ...HHFlex Air Handling Units Mounting instructions ...

Page 2: ...CTIONS 4 3 1 General 4 3 2 Lifting bar certification 4 3 3 Fastening of the lifting bars 4 4 ASSEMBLY 6 4 1 AHU assembly 6 4 2 Connecting casings of equal width and height 6 4 3 Connecting casings of differing height 8 5 STACKED CASING SECTIONS 9 5 1 Unit without intermediate base frame equal width 9 5 2 Unit with intermediate base frame equal width 10 5 3 Units with differing widths 12 6 FRESH AI...

Page 3: ...its are attached to the loading surface with tie ropes pulled across the unit towards the side edges of the truck On external units to protect the roof edge from distortion by the tie ropes protection pieces are added 1 4 Offloading and hoisting Depending on the dimensions of the AHU and the situation on site the AHUs are supplied in previously agreed transport sections Before proceeding with the ...

Page 4: ... control Steam generator plus accessories Minihelic and Allen key instructions Door key Check that all necessary parts are supplied with the AHU Measure the location and make sure it is tidy The floor of the installation area should be level and flat to avoid connection problems Any uneven surfaces should be evened out with infill plates Determine the correct assembly sequence of the AHU sections ...

Page 5: ...ig 10 Vertical transport using spacer bars For hoisting ensure that the weight is evenly distributed and that all previous steps are carried out correctly If there is not enough space it may not be possible to remove the lifting bars In the example below the lifting bars cannot be removed on the right hand side of the 6th AHU section as the wall is too close and the lifting bars are too long It wo...

Page 6: ...hat they can be pulled closer towards each other There are two methods for pulling the sections towards each other Method 1 Pull the sections against each other using the pull ropes attached to the lifting bars Pull evenly on both sides of the AHU Fig 13 Linking the casing sections with pull ropes Method 2 Insert a bar with threaded ends through both lifting bar holes Screw a nut onto the threaded...

Page 7: ...orners with a bolt The sections must be fully aligned Fig 18 Corner connection Remove the first two corners and mount the aluminium connection strip to the base Remove the next two corners and mount the connection strip against the side wall Repeat this for the other AHU corners Fig 19 Fixing the connection strip Method 2 This method applies for sections that end with corner posts Fig 20 Corner po...

Page 8: ...rovided Add a second cover strip over these screws Position the sections against each other so that the corner posts of both casings are touching and first connect the sections internally as described in chapter 4 2 Attach the projecting strip of the plastic roof foil over the connection profile of the lower casing section with a blow dryer Fig 24 Roof finish units of differing height 1 NOTE All r...

Page 9: ...nds need no further finish Fig 27 Mounting profile indoor location unit without intermediate base frame Outdoor installation Position the casing sections on top of one another so that the corner posts are in the same plane Mount the profiles supplied as described below For sections of equal length mount the profiles all round the unit Fig 28 Mounting profile outdoor location unit without intermedi...

Page 10: ...d Position the casings on top of one another so that the corner posts are in the same plane The base frame of the top section should be slightly back compared to the bottom casing section If stacking units in an indoor installation the connection profiles should be placed between the different unit sections Use the following assembly method Install a connection profile to the end of the casing sec...

Page 11: ...se profiles should be mounted over the entire unit length and width Fig 35 Stacking outside location Bear in mind that different connection profiles are used for the length and width directions of the cabinet Length direction Cut the connection profile supplied to the correct length and mount it as described below Fig 36 Fixing profile length direction unit with intermediate base frame Cross secti...

Page 12: ...p Fig 40 Unit with longer top section with intermediate base frame NOTE For an outdoor installation seal all jonts resulting from the mounted profiles This applies to both corner and butt joints 5 3 Units with different widths For units with different widths there are four different situations For an indoor installation the method described below applies to all situations Indoor installation The t...

Page 13: ...ver the entire unit length and width Position the top section as indicated in the dimensional drawing The position of the top section can be as described in one of the four situations below Fig 43 Unit of unequal width situation A Side 1 Cut the connection profile to the correct length and mount it on the correct side see Fig 36 Side 2 Cut the connection profile to the correct length and mount it ...

Page 14: ...ed over these profiles Fig 48 Roof finish projecting cross beam Fig 49 Unit of unequal width situation D Side 1 and 2 Cut the connection profiles to the correct length and mount them on the correct side see Fig 44 Side 3 Cut the connection profile to the correct length and mount it on the correct side see Fig 37 Side 4 Cut the connection profile to the correct length and mount it on the correct si...

Page 15: ...g sections to be connected is clean and dust free Attach the roof cover strip with a blow dryer over the entire length of the joint up to the roof edge Remove any excess roof foil up to the underside of the roof edge Fig 51 Roof finish method 1 Method 2 Fix sealing tape to the connection profiles Drill 160 mm holes with a 10 mm diameter through the connection profiles Be sure to remove the drill s...

Page 16: ...16 68 55 55 Fax 31 0 416 37 17 95 www systemair nl HHFlex MI HH UK 10 2015 Manufactured by Systemair B V Waalwijk Netherlands Manufacturer reserves the right to change any product specifications without notice The cover illustration is solely for lllustration purposes and not contractually binding ...

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