1.
GENERAL DESCRIPTION
AQUAIR 80UNIVERSAL
Water-to-Air Heat Exchange Unit
INSTALLATION, COMMISSIONING & SERVICING INSTRUCTIONS
Publication No. ZZ 829/3
January 2000
These instructions are to be left with the User
1
1
Air Filter
5
Heat Exchanger
2
Summer Air Circulation
6
Electrical Panel
switch
7
Fan Control cover
3
Air Vent
8
Fan Module
4
3-port valve
9
Lockshield valve
Fig. 1
AQUAIR 80 UNIVERSAL (downflow configuration shown)
1.1
AQUAIR 80 UNIVERSAL is a water-to air heat exchange unit with a heat output of up to 8kW (assuming a hot water supply
at 80
O
C is available). It is supplied as a downflow unit, but may be converted to upflow configuration. Modairflow control is
incorporated. A wire mesh filter is fitted as standard, with a CLEANFLOW electronic air cleaner being available as an
option for the downflow configuration only. The unit requires a supply of hot water at a minimum temperature of 75
O
C.
Water connections can be either left or right handed through knockouts in the sides of the cabinet.
1.2
Water flow to the unit is controlled by a 3-way motorised valve, which directs the flow either through the unit’s heat
exchanger, or through a free flow bypass (see sect. 4.4 for guidance on connection). Flow through the heat exchanger is
regulated by means of a lockshield valve.
1.3
Air is drawn in through the air filter or air cleaner (if fitted) and the heat exchanger by a centrifugal fan, and is discharged
through the opposite end of the unit. A Summer Air Circulation switch provides the facility to supply unheated air to the air
outlets during warm weather. An external timer (not provided) will be required if it is necessary to set the periods of
operation.
2.
TECHNICAL INFORMATION
Maximum output (with 80
O
C water supply
8.0kW (27,300Btu/h)
temperature and 70
O
C return temperature)
Water connection
15mm copper
Max. working pressure
10bar at 85
O
C
Electrical supply
230V, 50Hz, fuse rated at 3A
Weight (empty)
26kg
Height
540mm
Width
475mm
Depth
490mm
Return Air Spigot
375mm x 370mm
Water capacity
1.5litres (approx)
1
2
3
4
5
6
7
8
3
9
8
Johnson and Starley prides itself on its ability to supply spare parts quickly and efficiently. If you have a problem in
obtaining a spare part, please contact Johnson and Starley Spares Department at the address below.
JOHNSON & STARLEY LTD.
Telephone:
(01604) 762881
Rhosili Road,
Brackmills,
Telefax:
(01604) 767408
Northampton NN4 7LZ