Mechanical Installation; Electrical Installation - Parker MAXIGAS serie Handbuch

3.2 Mechanical Installation

Please refer to diagram A5 in annex A
Once located fit the ball valves to the ports on the generator. All ppm generators are supplied with a non return valve, this should be fitted to the
ball valve on the port marked "To Buffer Vessel". Install the pipe-work ready for connection to the buffer vessel and compressed air supply. The
diameter of the pipes must be sufficient to allow unrestricted inlet air supply to the generator and nitrogen supply to the application as shown in
the table below.
(1)
(2)
(3)
(4)
Ensure that all piping materials are suitable for the application, clean and debris free. All outlet piping must be solid and non-porous to minimise
the ingress of oxygen. When routing the pipes ensure that they are adequately supported to prevent damage and leaks in the system.
The nitrogen buffer vessel must be rated to at least the maximum operating pressure of the generator and must be fitted with suitable pressure
gauge and pressure relief valve
It is recommended that the system be protected with suitably rated pressure relief valves upstream of the generator.

3.3 Electrical Installation

A fully qualified electrical engineer must undertake all field wiring and electrical work in accordance with local
regulations.
Please refer to diagram A6 in Annex A.
In order to maintain the IP rating of the generator, all cables entering the electrical enclosure must do so through the dedicated cable glands
located on the side of the generator. All cables used must be sized such that the voltage drop between the supply and the load does not exceed
5% of the nominal voltage under normal conditions. All cables external to the generator must be adequately supported and protected against
physical damage.
REF CONNECTION
A Generator Supply
B Dryer Supply
C Purge Economy
Remote Switching
D
MODBUS
E Alarm Contacts
O 4-20mA
F
2
Connection
1" Ball Valve
1" Ball Valve
1/2" Ball Valve
3 Way Ball Valve
TERMINAL
L (Grey)
N (Blue)
(Yellow / Green)
JP17-2 (NC)
JP17-3 (NO)
JP19-7
(INPUT 4)
JP19-8
RS485
A
B
MODBUS
JP18-1 (COM)
JP18-2 (NC)
JP18-3 (NO)
Analyser - 6 (+ve)
Analyser - 7 (-ve)
(a) 1" NB / 28mm ID
(b) 1" NB / 28mm ID
(c) 1/2" NB / 16mm ID
(d) 1/2" NB / 16mm ID
NOTES
L - Fuse terminal for the phase conductor.
N - Neutral conductor
- Earth conductor
Dryer Live conductor
Dryer Neutral conductor
Dryer Earth conductor.
Refer to installation instructions for the dryer.
Remote switching is activated in the customer
Settings menu 3.11
For MODBUS communication setup details
refer to dh publication 17 650 012.
The relay is energised when no faults are
present
The screen should be bonded to the back plate
of the shroud.
10
Pipe-work
CABLE DIAMETER
6 - 12 mm
3 – 7 mm
3 – 7 mm
3 – 7 mm
3 – 7 mm
3 – 7 mm