Endura AZ20 Oxygen Systems
Endura AZ20 – Pumped Reference Air Unit
3 Installation
4
INF09/027
Issue 3
3.4 Accessing the Terminal Block
Referring to Fig. 3.3:
1. Loosen the 4 pump cover retaining screws
A
.
2. Remove the pump cover
B
.
3. Loosen cable gland
C
to prepare for the incoming
power supply cable.
3.5 Electrical Connections
3.5.1 Preparation
Referring to Fig. 3.4:
1. Prepare the incoming power supply cable as follows:
a. cut the outer sheath back to leave 100 mm (4.0 in.)
sleeved wires
A
b. cut the sleeved wires back to leave 5 mm (0.2 in.)
tails
B
2. Pass the cable through cable gland
C
.
3.5.2 Making Connections
Referring to Fig. 3.4, make mains connections as detailed in
steps 1 to 5. The mains power supply must be 115 or 230 V AC,
50 / 60 Hz depending on the pump model (refer to Fig. 3.3 and
Table 1.1, page 1).
1. Prepare the incoming power supply cable as follows:
a. cut the outer sheath back to leave 100 mm (4.0 in.)
sleeved wires
A
b. cut the sleeved wires back to leave 5 mm (0.2 in.)
tails
B
2. Pass the cable through cable gland
C
.
3. Connect the neutral (blue wire
D
) to the terminal block to
match the existing connection.
4. Connect the earth wire
E
to the pump’s internal earth
connection.
5. Connect the live (brown) wire
F
to the terminal block to
match the existing live connection.
6. Refit the pump cover by reversing the procedure in
Section 3.4.
Fig. 3.3 Accessing the Terminal Block
B
C
A
Pump Identification
Label
Warning.
Ensure the live (brown) wire is protected
with a 1.6 A Type F fuse.
Fig. 3.4 Electrical Connections
B
F
A
C
E
D
