www.alfrescoheaters.ie
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cable. For dual element heaters, use 5-core (two live, two neutral, and one earth wire), 4mm
2
cable. Check the
Product
Specifications
table for the appropriate amp values for each heater
model.
Note:
For the ALF 50 model heater, you can use either 2.5mm
2
or 4mm
2
cable.
5.
Make the electrical connections in compliance with the applicable electrical codes and regulations.
Ensure that you connect each cable wire to its matching connector. For example, the neutral wire
from your cable must be connected to the neutral wire connector in the junction box. For the single
element heaters, you need to make only one live and one neutral connection. For the dual element
heaters, you need to make two live and two neutral connections.
6.
Earth the heater using the connector provided.
In the junction box, there is a strip of metal welded to the base. This is fitted with a connector to
which you should connect the earth wire.
7.
Ensure that all connections are secure and then replace the neoprene weather-proof gasket on top
of the junction box.
Warning!
Failure to replace this gasket after wiring the heater will void the manufacturer’s
warranty.
8.
Replace the junction box cover and the two screws you removed earlier.
3.6.
Installation Troubleshooting
You can refer to the following table for more information on some common issues that may occur.
Symptom
Possible Cause
Corrective Action
Element not heating
1. Incorrect connection
2. Defective element
1. Check power connections
2. Replace element
Element hot spot
1. Heater is not level
2. Moisture/grease on tube
1. Change to level mounting
2. Clear tube or replace if necessary
Excessive heating
1. Heater too large for heating area
2. Heater mounting too close to heating area
1. Replace with less powerful heater model
2. Increase mounting height/distance
Insufficient heating
1. Heater too small for heating area
2. Heater mounting too far from heating area
1. Replace with more powerful heater model
2. Decrease mounting height/distance
Cable lugs
overheating
Nuts and lock washers not tight enough
Tighten the nuts and lock washers more
securely against the element ends.
4.
O
PERATION
I
NSTRUCTIONS
Alfresco heater can remain in prolonged, constant operation if required. However, it is recommended that
you install motion sensors together with the heaters to minimise costs.
Warning!
A contactor is required when connecting a motion sensor. If you do not use a contactor, the
current will burn out the sensor. The contactor carries the load and acts as a heavy-duty switch that is
turned on and off by the sensor. You can refer to the applicable motion sensor installation instructions for
more information.
