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Do not operate the rectifier if the covers are damaged or removed in any way
The rectifier contains voltages that may be lethal even after the
-
input supply has been removed
-
The rectifier contains components at High Temperatures that may
burn if touched
2.2
Rectifier Shelf
The RM2048HE rectifier must only be used in conjunction with an appropriate Newmar designed or Newmar
approved system or rectifier shelf.
2.3
AC Supply Surge Protection
The AC supply that feeds the rectifiers must have surge protection installed to meet levels defined for terminal
equipment. Newmar recommend that IEC 62305-4 (Protection against lightning - Part 4: Electrical and electronic
systems within structures) be used to give guidance on the design of surge suppression systems. Rectifiers that
exhibit transient surge damage are not covered under warranty.
2.4
Ventilation
The performance of the rectifier can be limited if the ventilation is restricted. The rectifier is cooled by drawing air
into the front of the unit with a single fan. This air passes through the rectifier cooling the electronics and exiting the
rectifier at the rear. To ensure this happens as efficiently as possible ensure the following:
•
The air at the front of the rack is at ambient temperature and not being heated by other equipment.
•
Ensure the rectifier shelf has at least 75mm clear horizontal space behind it. This space must be clear of
cables and any other components that may restrict air movement.
(Note: if multiple rectifier shelves are installed then there should be at least 75mm clear horizontal space
per shelf.)
•
The free space in the rack should continue vertically to the exhaust point at the top of the rack, without
impediment.
•
The hot exhaust air should not be allowed to re-circulate to the front of the rack as this will be drawn into the
rectifiers again, in effect raising the apparent ambient temperature.
The rectifier must be operated in a low dust environment.
2.5
Rectifier Addressing
Each rectifier in the system has a unique address which identifies it to the monitor. This address is set by the
position in the rectifier shelf and the number of the shelf. It is read by the rectifier from the backplane PCB and will
change if the rectifier is moved to a new location. This address structure is set up when the system is built by the
system manufacturer.
2.6
Commissioning the Rectifier
1) Ensure the polarity of the load and battery cables to the backplane is correct.
2) Plug the rectifier into the rectifier shelf using the following steps:
•
Locate the metal tag (at the bottom/rear of the rectifier) into the chosen slot in the backplane.
•
Push the rectifier into the rectifier shelf until the connector is fully engaged.
•
There will be an audible click as the rectifier locks itself in position using the plastic spring retainer on
the right side of the front panel.
•
Rectifier removal is achieved by pressing and holding the unlock button then gently pulling on the front
panel.
3) Once the rectifier is installed into the rectifier shelf, the AC power can be turned on. After the initial startup
period the rectifier will be set to the desired system parameters by the monitor module via the serial
communications.
3 Specifications
3.1
AC Input
Nominal
Rectifier Installation Manual
DANGER
230 V
Page 7 of 10
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