12
SECURING LEG SUPPORTS
After levelling and securing the cooler
onto the roof jack you are ready to fix the
four leg supports. The telescopic leg
supports (with feet attached) slide up and
down inside the four cooler corner posts.
By removing the screw from the lower
end of the corner post you enable the leg
support to slide down to roof level. Refer
figs 9, 10 & 11 for the procedure for
adjusting and securing the leg supports.
9
10
12
Install a manual water shut-off valve near the
point of entry of the water supply to the
cooler, in the permanent water supply. In
areas subject to winter freezing, install a
drain down feature.
DO NOT FIT SHUT OFF
VALVES DIRECTLY ONTO THE FLOAT
VALVE NIPPLE OR SOLENOID VALVE.
WARNING!
Flush foreign matter from water supply pipe
before final connection to the flexible hose,
to avoid damage to the water solenoid and
float valve.
14
7
The sump of the pan is designed to be
located on the low side of the roof (Fig. 8)
8
11
The support legs are not full weight bearing
and are only intended for additional support
in case of high winds, etc.
A permanent water supply is required to be
connected to the water inlet solenoid valve
assembly that is supplied with the cooler.
The float valve then controls the water level
in the pan automatically. (Fig. 12)
The permanent water supply connection
point is located underneath the pan, and is
attatched to the flexible hose and tube
assembly. (Fig 14, item
“
F
”
)
WATER INSTALLATION
INSTALLING THE INLET SOLENOID
VALVE
Fit the inlet solenoid valve under the
pan as shown (Fig 14).
Insert the solenoid valve cable
through the hole (behind the drain
valve) and connect the plugs to the
solenoid valve. (Fig. 13) Make sure
the cable is fitted to the groove
underneath the pan. The electrical
cable leads may be connected to the
solenoid valve either way around.
13
Use thread seal tape between
solenoid hose assembly and brass
½
”
BSP to 1/4
”
compression
adaptor or 1/2
”
BSP Nut.
If freezing conditions can occur at
any time, a drain down facility must
be provided at the lowest point of
the water supply pipe.
A = Solenoid.
B = Nut & Gland
C = Nut
D = Tube Assy
E = Nut
F = Flexible hose assy
G = Solenoid cover
H = Solenoid power leads
.
I = Float Valve Nipple ½
”
BSP
J = ½
”
BSP to 1/4
”
Compression Fitting
Or
1/2
”
BSP Nut & Olive
ILL1228-E SIA2008
(connects to float valve)
(connects flexible hose to Solenoid)
(solenoid to float valve)
(connects Solenoid to tube assy)
(In Unit)
Attach the cooler to the roof jack from
inside the cooler (Fig. 7), using 1¼" long
self-tapping screws. Use a minimum of
six (6) screws. In high wind areas or
when not using leg supports use a
minimum of eight (8) screws, 3 per side
and 2 at the front.
13
EXV Evaporative Cooler
Installation Details
