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Sales/Spares 01604 707012 Replacement Help Line 01604 707011
6. INSTALLATION
INSTRUCTIONS
6.1
The unit should be positioned to suit duct work and mounted, if necessary, on a plinth or frame strong
enough to avoid strain being placed on associated pipe and duct work.
6.2
Clearance of 450mm is required at the front of the casing for servicing and replacement of the heat
exchanger. It is recommended that provision be made for complete removal of the unit.
6.3
Sufficient clearance must be provided for the assembly of ducting and pipework.
6.4
Water connections to the unit should be by compression fittings that are suitable for the duty,
and isolation valves must be fitted to facilitate the removal of the heat exchanger assembly.
IMPORTANT: It is recommended that the water system be drained and
fl
ushed prior to the installation of
the unit. A strainer should be
fi
tted upstream of the unit.
6.5
If a return air duct is not to be fitted, the top of the unit must be suitably guarded to prevent blockage when
installed as a downflow installation
6.6
Once the installion is complete, stick the Aquair decal in position on the front cover top left hand side.
7.
CONVERSION TO SIDE & UPFLOW CONFIGURATIONS
7.1
The Aquair S standard configuration is a downflow unit. This
has the provision to be converted to an upflow unit.
FOR AN UPFLOW INSTALLATION
7.7.1
Remove the 10 screws holding return air frame and remove.
7.7.2
Invert the unit so the air filter is at the bottom.
7.7.3
Screw the frame to the (new) top of the unit to form the duct
connection spigot.
NOTE:
When using the upflow configuration, an ALTECNIC 502
ROBOCAL Air vent (Part No.1000-0302300) MUST be fitted to
the top of the unit. Call Johnson & Starley Ltd for details, Tel:
01604 762881.
7.7.4
Swivel the disc cap by breaking the paint seal, tap the disc
and swivel. Remove the cap in the end of the flow pipe and
screw in the air vent.
7.7.5
Re-route the harness cable through the side knockout using
the gromet attached to seal the hole.
FOR SIDE RETURN AIR INSTALLATION
NOTE:
When using a side return air kit with either the downflow or
upflow you need a blanking plate to cover the existing opening.
7.2
Remove the spigot frame and use the Side Return Air Kit:-
Part No.s
Aquair S 10 = SRA-10P
Aquair S 16 = SRA-16P
Aquair S 20 = SRA-20P
7.2.1
Tap out the knockouts on your chosen side.
7.2.2
To fix the Side Return Air Kit and follow the instructions supplied
with the kit.
8.
RETURN AIR SYSTEM
8.1
The return air system should be constructed of fire-resistant material. It is important that the correct size of
return air grilles and ducting is used. Refer to table below for return air duct size, flexible duct size and the
return air grille size at maximum output.
8.2
An adequate and unobstructed return air path is required from areas not served by a directly ducted return
and to which warm air is delivered. All such rooms should be fitted with relief grilles which have a free area
of 0.0088m²/kW (1in²/250Btu/h) of heat supplied to the room. The only exceptions are kitchens, bathrooms
and WC.’s.
9. ELECTRICAL
FIGURE 2. UPFLOW CONFIGURATION
AIR FILTER
REPLACE WITH
BLANKING PLATE
SWIVEL CAP
(inside unit)
RETURN AIR
FRAME
AIR VENT
HARNESS
KNOCKOUT
g
p
A
d
t
d
b t
t d t
i
th i
i d f
t
d b
di
tl d t d t
AQUAIR
DUCT EQUIVALENT SIZE
FLEXIBLE DUCT SIZE
RETURN AIR GRILLE
S-10
250 x 200mm (10” x 8”)
300mm (12”) dia
860cm² (137in²)
S-16
300 x 250mm (12” x 10”)
350mm (14”) dia
1266cm² (196in²)
S-20
400 x 300mm (16” x 12”)
406mm (16”) dia
2118cm² (328in²)
