Harris Maxiva ULX, Technical Manual

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2-12 888-2629-200 10/6/10
WARNING: Disconnect primary power prior to servicing.
Section 2 Installation
Maxiva ULX COFDM Series
NOTE:
It is recommended that the heat exchanger and pump module plumbing be pres-
surized to 15 PSI with air or an inert gas (nitrogen), as a leak check prior to rig-
ging and/or final placement.
2.5.5 Placement of Heat Exchanger and Pump Module
The heat exchanger and pump module units must be installed level. Mounting legs
should be securely fastened to supporting steel or concrete pads. When mounting on a
roof, install heat exchanger unit so that building columns or load bearing walls
adequately support it.
STEP 1
The expansion tank may be packed and shipped separately to avoid
damage in transit. Refer to manufacturer’s drawings and manual for
proper location.
Install the expansion tank using pipe joint
compound.
!
CAUTION:
AVOID USE OF EXCESSIVE AMOUNTS OF PIPE JOINT COMPOUND OR JOINT
TAPE. APPLY PIPE JOINT COMPOUND ONLY TO EXTERIOR THREADS TO
PREVENT INTERIOR BUILDUP AND CONTAMINATION OF THE PLUMBING
SYSTEM.
STEP 2
The heat exchanger unit should be installed outside . It should be
oriented so that plumbing elbows are minimized and complex plumbing
assemblies like back to back elbows are not required. If hoses are used
in the coolant system they should be positioned to avoid sharp bends
where flow could be disrupted. In addition, the heat exchanger should be
oriented so that access to the electrical connections, fans, and fan motors
can be accomplished. The pump module can be installed inside or
outside depending on the model shipped (early versions were designed
for indoor use only).
!
CAUTION:
THERE SHOULD BE NO OBSTRUCTION WITHIN TWO METERS IN FRONT OF THE
EXHAUST SIDE OF THE FAN ON VERTICALLY MOUNTED HEAT EXCHANGERS
(EXHAUST AIR IS DIRECTED OUT THE SIDE OF THE UNIT). HORIZONTALLY
MOUNTED HEAT EXCHANGERS (EXHAUST AIR DIRECTED UPWARD) SHOULD
HAVE NO OBSTRUCTIONS TO THE OUTPUT EXHAUST WITHIN TEN METERS.