3. General Requirements
3.1. Location
Calecon units will be effective in any high roofed building where
temperature stratification will otherwise occur.
3.2. Electricity Supply
Wiring external to the unit must be installed in accordance with
the l.E.E. Regulations and any local regulations which apply.
Calecon units are supplied for 230V~ or 400V 3~N. The fan
motor starting amps are approximately 3
times the full load current.
4. Installation of Units
4.1. General
Units should be installed at the highest available locations and
in positions where the downward directed airflow will not be
impeded by racking or other obstructions. Ensure that units are
not mounted so as to obstruct the movement of overhead cranes,
forklift trucks etc.
Where multiple units are being used their positioning should
ensure as even airflow pattern in the building as practicable.
4.2. Speed Control Units
Manual, or temperature controlled, speed regulators may be
used in conjunction with Calecon units to provide greater system
flexibility. If the speed regulators are not of Powrmatic supply
it must be established that they are compatible with the Calecon
units . Refer to the instructions with the speed controllers for
wiring details.
2. Technical Data
Dimensions & Weights
Model A B Weight
mm mm kg
CEC1250 500 16.5
CEC2250 600 360 21.0
CEC3750 655 24.5
CEC6500 805 35.0
A
A
B
Model
Maximum Throw for various Temperature Differentials Airflow Fan Motor Weight
5°C 10°C 15°C 20°C Power 1ph 3ph
m cfm m³/s w A kg
CEC1250 9 7 5.5 5 1250 .590 110 0.6 0.3 16.5
CEC2250 12 8 7 6 2250 1.062 290 1.6 0.5 21.0
CEC3750 18 12 9 8 3750 1.770 420 2.4 1.3 24.5
CEC6500 24 15 13 10 6500 3.067 370 2.7 1.3 35.0
Specifications
1. Introduction
Calecon thermal economiser units will automatically recirculate the high level hot air in high roofed buildings drastically reducing
stratification and heat losses.
Mounted externally on the unit is the air temperature sensing thermostat. Units are fully pre-wired, fully tested and fitted with four
eyebolt suspension points.
4.3. Fitting
The unit may be installed either:
a) suspended by suitable drop rods, chains or straps or,
b) on specifically designed brackets.
Whatever method of installation is used it must be capable of
adequately supporting the weight of the unit (See Section 2).
Before installing the unit any existing trusses, walls, brackets
etc., must be inspected to ensure they are suitable. All supports
should be protected against the effects of rust or corrosion.
When the heater is suspended it is essential that the electrical
connection is made with a flexible connection.
4.4. Electrical Connections
All units are fully pre-wired and only require final
connections for the incoming mains supply.
The electrical supply must be run to a point adjacent to the unit
and be suitably terminated to provide an isolation point that will
prevent activation of the unit during servicing. Refer to the
Specifications data above to ascertain the electrical loading of
the unit(s) being installed so that cables of adequate
cross-sectional area to safely carry that load are used for the
electrical installation.
The length of the conductors between the cord anchorage and
the terminals must be such that the current carrying conductors
become taut before the earth conductor if the cable or cord slips
out of the cord anchorage. Any external controls that are used
in conjuction with the units must be of an approved type.
1. Remove the two screws securing the electrical panel to the
casing and hinge down panel.
2. Pass the incoming supply cable through the cable gland on
the top of the unit.
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