Fenwal Thermostat
– (Omni 3, Omni 5 & Omni 10) The adjustable range is from 0
o
. F (-18
o
C) to
100
o
F (38
o
C). Thermostat is not preset at factory. Fill the trough to proper water level. Check the
water temperature with a thermometer. The next morning, check the water temperature again. If the
water is warmer than desired, turn the thermostat down. If there is ice forming on the surface of the
water, turn the thermostat up. Only slight adjustments should be made to the thermostat at any time.
A 1/16 turn on the thermostat will change the water temp. 7
o
F (4
o
C). 44
o
F (7
o
C) in the trough
represents the most economical operation. Counter clockwise raises the thermostat setting.
M.
Disc Thermostat
– (Omni 1, Omni 2 and Omni 2 SP) The disc thermostat is mounted
in a bracket under the trough, which allows it to be moved relative to the heater. To ease
movement of thermostat turn ¼ turn. To lock in position after adjustment turn ¼ turn
back.
As the thermostat is moved toward the heater, the water temperature
in the trough is lowered
.
The best location is determined by checking the trough
temperature several times during the heating season.
N.
Final Water Connection for Omni 1, Omni 2 and Omni 2 SP Only
– Connect the
top of the supplied hose to the valve, cut hose to proper length and slip onto the barb
fitting of the valve assembly. Clamps and fittings are furnished to secure the connection. (This connection was
already made in step “H” for the Omni 3 & 5.)
O.
Seal the Base
- After the unit is completely installed, apply a bead of caulking around the base of the fountain
to ensure no wind enters through the base of the unit.
NOTE:
Sealing the bottom of the unit from cold air is an important aspect of the unit's thermal
performance.
P.
Drain Plug
– Insert the drain plug firmly into the drain hole in the center of the trough.
Q.
Water Seal Drain
– Install the small drain plug into the drain hole in the water seal groove around the valve
chamber seal. This plug may be removed during the non-freezing periods to allow the water seal groove to drain.
R.
Valve Frame and Cover
– (OmniFount 3 & 5) Before installing the valve chamber frame, the weather seal
must be installed on the frame (see picture below). The seal is installed by removing the paper backing from the
adhesive side and then starting at the midpoint of the frame leg; attach the seal to the frame. Work your way
around the frame with the seal as close to the inside edge as possible and then up the other leg to the halfway
point. At this time cut any extra foam seal as needed then repeat for other side. The frame can then be attached to
the casing using the screws and nuts provided in parts bag. A washer should be used on the head of the screw as
well as under the nut. Tighten securely.
NOTE:
T
he foam seal must be placed on the
omni 3 & 5 frame as shown in the picture to the
right. The foam seal is to prevent cold air from
leaking into the valve chamber and causing the
valve to freeze.
OmniFount Series Instruction Manual
5
January 1, 2020
