T9901120-1-2 UK
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Table 2
Fig 9
Fig 8
22mm pipe
A
B
A/B
22mm pipe
22mm pipe
22mm pipe
R
E
T
U
R
N
F
L
O
W
Step 5
Place retaining bracket on top front hanging system
rail (see 1, Fig 8) and fix with M6 bolt (see 2, Fig 8).
Repeat for other ceiling bracket.
Step 6
To centralise unit over doorway, carefully slide air
curtain left or right. Ensure air curtain is mounted
horizontal level. Tighten all fixing bolts until the air
curtain is safely hanging from the ceiling.
7.4 LPHW Models
For LPHW models ensure that water isolation valves are fitted in the flow and return pipework
adjacent to the air curtain connected correctly as shown in the diagram in Appendix 1.
For the design of the water pipework system and pump, water flow rates and pressure drops for
maximum heat output of the air curtain are given in Table 2 below.
Air Curtain
Water Flow Rate
(l/min at 82/71°C)
Water Pressure Drop
(kPa)
C2-1000W, 1-row
(6kW)
7.8
4.5
C2-1500W, 1-row
(9kW)
11.7
11.0
C2-2000W, 1-row
(12kW)
15.6
21.0
C2-2500W, 1-row
(15kW)
19.5
29.8
The installer must connect the 3-port valve in the heating pipework as shown in Figure 9 below:
WARNING:
It is the sole responsibility of the installer to ensure that the fixing locations and
suspension system used are suitable for the air curtain being installed.
NOTE:
Water Pressure Drop is across the flow and return pipework to the air curtain and includes for the
coil fitted inside the unit and the valve fitted in the heating pipework to the unit.
Water flow rates and pressure drops at different water temperatures can be calculated using the
Thermoscreens coil calculation programme. Visit the Thermoscreens website for details.
NOTE:
Joining Kit is available to join two air curtains together. See separate instructions supplied
with Joining Kit
.
wire valve to pcb inside air curtain
