Proper mounting of the SurgeGuard

[Birddog Pilot]

While looking through some of my coach systems information notebooks and tech files at the ACA site I happened to notice an interesting item. The TRC SurgeGuard, or transfer switch if you will, 40250 that WRV installed in our '06 is apparently mounted incorrectly. TRC in their current internet information regarding installation and operation very specifically does not want the unit to be mounted upside down. That is it should not be hanging from the frame or floor structure with the unit's cover facing down. I just got off the phone with a technical representative at TRC and he confirmed that they do not recommend a downward facing mounting installation. The reason is that the mechanical relays in the unit have springs that are designed to be in compression and not hanging in tension. He went on to say that the longterm results would be relays that would not give the designed protections for such events as under or over voltage conditions, or to even accept shore power. He further advised that the unit would possibly begin to make buzzing or relay chattering noises as an indication of impending problems or failure.

Our SurgeGuard has been going strong for these past eight years while being suspended upside down, possibly just lucky perhaps. So, the question is did WRV mount only our unit incorrectly, or are there others out there "hanging on" so to speak in the inverted position?

[Wil Rathke]

Mine is hung just like yours.

[EngineerMike]

On my 06, the SG was mounted w/cover vertical, and bracketed (somewhat crudely) to the outside rectangular tube for the rear main slide ram that runs thru the frame members.
The 08 SG is mounted to the DS frame facing outward toward the utility bay internal door (earlier models have a velcro-flap above sewer outfall piping in place of this door).

Dick- you may have enough slack to dismount & rotate the SG to a vertical orientation & remount it if this is bugging you.