Ouellet OHV - Manual (Page 2)

Figure 4 - Threaded Rod Spacing Dimensions
Vertical Air Discharge
Table 4 - Threaded Rod Spacing Dimensions
Vertical Air Discharge
Heater
kW
Threaded
Rod
E F J K
0.5 to
5.0 kW
3/8 - 16
6 1/2 in.
165 mm 4 1/2 in.
115 mm 9 1/2 in.
241 mm 5 in.
126 mm
5.1 to
10.0 kW
3/8 - 16
12 in.
305 mm
5 in.
127 mm
16 in.
406 mm
4 7/8 in.
123 mm
Table 5 - Dimensions and Weight
Heater
kW
Height Width Depth Weight
0.5 to
5.0 kW
16 1/2 in.
419 mm
15 3/4 in.
400 mm
9 in.
229 mm
40 lb
18 kg
5.1 to
10.0 kW
24 1/2 in.
622 mm
22 in.
559 mm
10 7/8 in.
276 mm
67 lb
30 kg
WIRING
All wiring must be in accordance with National and Local
Electrical Codes.
The heater must be grounded as a precaution against
possible shock.
Insure power source is deenergized before wiring heater.
Check nameplate on back of heater.
Connect heater only to voltage and phase specifi ed on
nameplate.
Two knockouts are provided in the back of the heater:
- For supply power wiring a multiple 1/2 in. to 3/4 in.
(13 mm to 19 mm) knockout for OHV 5 kW and less
and a multiple 1 3/8 in. to 1 3/4 in. (35 mm to 44 mm)
knockout for OHV 7.5 kW and more.
- For control wiring a 1/2 in. (13 mm) knockout.
Relay with Transformer (RT) – Low voltage thermostat
wiring.
RT is located on back wall of heater control compartment.
- Remove wiring separator.
- Remove knockout from heater back.
- Wire remote thermostat to RT.
- Replace wiring separator and tighten pipe nipple nut.
Wiring compartment volume: 85 in. 3 (1393 cm 3 ) minimum.
HEATER OPERATION
Fan Delay
OHV unit heaters (5 kW and less) are designed with a fan
delay that allows the elements to heat-up before the fan
turns on, reducing the “cold blast” effect normally felt with
non-fan delayed heaters.
On a call for heat from either the remote (fl oor level)
thermostat or the unit mounted thermostat the elements
will be energized.
After the elements get warm, a short period of time, the fan
will come on (5 kW and less).
When the thermostat is satisfi ed the elements will
be deenergized.
The fan will continue to run until the residual heat is
removed from the heater. Then the fan will stop.
Automatic Reset Thermal High Limit
OHV heaters have an automatic reset thermal high limit
that will deenergize the heating elements if the interior
temperatures of heater exceed its setting. The limit will
automatically reset when the heater interior temperatures
fall below its setting.
SERVICE
The heater motor is permanently lubricated.
Occasional cleaning of the inlet grille will prevent
clogging. Use a vacuum with a brush attachment.
WARRANTY
OUELLET CANADA INC. warrants the electric heating
element of the OHV series for a fi ve (5) year period; and their
component parts against defects in material and workmanship
for a fi ve (5) year period following the date of purchase,
under normal use and service, when proof of purchase of
such is provided to the manufacturer. The obligation of
Ouellet Canada Inc., under the terms of this warranty, will
be to supply a new unit and this omits the manufacturer to
bear the installation costs or other secondary charges linked
to replacing the unit or the component part(s).
KEEP THIS INSTRUCTION PAMPHLET
FOR THE USER INS151-200803-06
WIRING (continuation)
Field wiring must be properly sized to carry the amperage
of the heater and all accessories.
The heater has a wiring diagram affi xed to the inside of
the control compartment access door. Check this diagram
before making any electrical connections.
Branch circuit wiring must be minimum 600 Volts, 60 °C.