5
Sales/Spares & Replacement Help Line 01604 762881
7. TECHNICAL DATA
8.
POSITIONING & PREPARATION
8.1
The unit should be positioned to suit any duct work. Mount on a plenum or frame strong enough
to avoid any strain being placed on associated pipe and duct work.
8.2
Once the position of the unit has been decided, make sure all extra ancillaries are installed ready
for the unit installation.
For a list of the ancillaries available contact Johnson & Starley Ltd, Telephone 01604 762881.
8.3
Make sure all the electrical cables are in place.
8.4
It is important that the system is flushed thoroughly prior to installation. Failure to do so could
produce a blockage, cause damage to the system and reduce the efficiency. This MUST comply
with the water treatment guidelines.
IMPORTANT: It is recommended that the water system be drained and
flushed prior to the installation of the unit. A Magnetic & Non Magnetic
Filtration system must be fitted upstream of the unit.
8.5
Clearance of 450 mm 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.
8.6
Sufficient clearance must be provided for the assembly of ducting and pipework.
ITEM
S-10
S-16
S-20
Nominal Rated Output
kW
10
15
20
“Air on” Temperature
˚C
20
20
20
“Air off” Temperature
˚C
67
67
67
Water Supply Temperature
˚C
80
80
80
Water Return Temperature
˚C
73
72
71
Water Flow Rate
l/s
0.4
0.5
0.6
Air Volume
m³/h
576
936
1224
Water Connections
bsp
¾
¾
¾
Maximum Water Pressure
Bar
3
3
3
Maximum Power Consumption
W
150
215
530
Dimensions (H/W/D)
mm
768 x 300 x 550
787 x 445 x 517
787 x 485 x 631
Return Air Frame
mm
204 x 380
359 x 351
366 x 372
Electrical Supply
A
230V, 50Hz, fuse rated at 3A
Weight
kg
26
36.50
42.51
6.
DUCT INFORMATION
6.1
The duct system should be carefully designed (Guidelines taken from the British System Design
Manual) to suit the needs specific to the heating requirements and building layout.
6.2
The duct work should be installed with the least number of fittings to minimise the airflow
resistance and the ducting runs should be as straight as possible. They should be fully insulated
and protected from any crushing. Ducting passing through unheated roof voids must be
insulated.
6.3
It is an advantage to have all the compatible ductwork already installed and ready to connect to
the appliance frame. The base duct must be constructed to support the weight of the unit. The
appliance, duct work and blanking plate must be secured and sealed.