Heater Base Wiring Guide
General
The Heater Base, part no. ORB-HB-00020-APO, is designed to be used where environmental
conditions could result in icing or condensation. The heater base increases the associated
detector's temperature by approximately 10°C above ambient. The heater base can be
used in conjunction with either a Waterproof Base Cover, part no. 45681-519, or a Deckhead
Mounting Box, part no. 45681-217 to minimise moisture ingress.
Installation
For deckhead mounting box wiring, fi t the heater base to the mounting box and install
cables as shown in Fig 2.
1.
For surface wiring activate locking mechanism if the detector is to be locked into the
base. To do this, remove the small portion of plastic shown in Fig 1 with side cutters or
similar tool.
2.
Remove surface mount break out points using side cutters or similar tool.
3.
Fit heater base into waterproof base cover if used. Pierce cover to allow for cable entries
and ensure they line up with the cut outs (step 2).
4.
Mount base using the mounting screw holes provided.
5.
Fig 1. shows the wiring terminals. Terminal marked '4' on the base is provided for
connecting the screen or functional earth.
6.
Install all cables as shown in Fig 2. For power supply connections, terminal 2 is positive
and terminal 3 is negative.
7.
Apply a suitable sealant to the cable entries and fi xing points if waterproof base cover
has been used.
8.
When all bases have been fi tted, a voltage test for wiring continuity may be carried out.
Detector head should not be fi tted at this stage. Please note this test is not suitable for
base power supply cabling - ensure cables are not connected when completing the
megger test.
Unlocking the detector
To unlock the detector from the base, insert a 1.5mm hexagonal driver (part no 29600-095)
into the small hole on the detector face and gently lever the driver outward whilst rotating
the detector anti-clockwise.
39214-384/Issue 2
General
The Heater Base, part no. ORB-HB-00020-APO, is designed to be used where environmental
conditions could result in icing or condensation. The heater base increases the associated
detector's temperature by approximately 10°C above ambient. The heater base can be
used in conjunction with either a Waterproof Base Cover, part no. 45681-519, or a Deckhead
Mounting Box, part no. 45681-217 to minimise moisture ingress.
Installation
For deckhead mounting box wiring, fi t the heater base to the mounting box and install cables
as shown in Fig 2.
1.
For surface wiring activate locking mechanism if the detector is to be locked into the
base. To do this, remove the small portion of plastic shown in Fig 1 with side cutters or
similar tool.
2.
Remove surface mount break out points using side cutters or similar tool.
3.
Fit heater base into waterproof base cover if used. Pierce cover to allow for cable entries
and ensure they line up with the cut outs (step 2).
4.
Mount base using the mounting screw holes provided.
5.
Fig 1. shows the wiring terminals. Terminal marked '4' on the base is provided for
connecting the screen or functional earth.
6.
Install all cables as shown in Fig 2. For power supply connections, terminal 2 is positive
and terminal 3 is negative.
7.
Apply a suitable sealant to the cable entries and fi xing points if waterproof base cover
has been used.
8.
When all bases have been fi tted, a voltage test for wiring continuity may be carried out.
Detector head should not be fi tted at this stage. Please note this test is not suitable for
base power supply cabling - ensure cables are not connected when completing the
megger test.
Unlocking the detector
To unlock the detector from the base, insert a 1.5mm hexagonal driver (part no 29600-095)
into the small hole on the detector face and gently lever the driver outward whilst rotating
the detector anti-clockwise.
Heater Base Wiring Guide
39214-384/Issue 2
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