Installation and Maintenance Manual

Installation
WSHP-SVX10B-EN 13
If unit cabinet assembly includes factory provided risers,
and "no" field provided between-the-floor riser
extensions, please move to Step 1.
Note: Risers are designed to accommodate a maximum
of 1½" to 3" expansion and contraction. If the total
calculated riser expansion exceeds 3", expansion
devices must be field provided.
If unit cabinet assembly includes factory provided risers
and field provided between-the-floor riser extensions are
required, install the extensions before installing the
cabinet.
1. Install drain valve, shut-off/balancing valves, flow
indicators and drain at the base of each supply and
return riser to enable system flushing at start-up,
balancing and service/maintenance.
2. Lift cabinet into space while aligning it into the
3"swage of the riser below.
Note: Take extra care as not to scrape or dent risers
during positioning.The riser should fall
approximately 2" into the 3" swage.This will allow
for the variation in floor-to-floor dimensions, and
keep the riser joints from bottoming out.
3. Level the cabinet.
4. Plumb risers in two planes to assure proper unit
operation and condensate drainage.
5. Anchor all units into place.
6. For field provided risers, center the supply/return
stubouts into the unit expansion slots.The stubouts
should be perpendicular to the cabinet panel.
7. Verify all risers are vertical and that they penetrate the
swaged joint at least 1". Riser should not be allowed to
bottom out.
8. Braze riser joints. Softsolder or low-temperature alloys
should not be used in this application.
9. If risers are field provided, it is recommended that the
risers be anchored to the building structure with a
minimum of one contact point. For expansion and
contraction reasons, do not fasten risers rigidly to the
building.
10. Seal access holes made through the cabinet for piping
with suitable material to help eliminate air leakage.
11. Se e “Cleaning and Flushing the Water Loop,” p. 16 for
system flushing.
Note: Remove shipping straps from risers.
Water Connection
For vibration isolation, it is recommended that flexible
steel braided hoses be installed instead of hard piping
between the vertical risers and the unit chassis.
Trane offers 4-types of hose kit variations:
• Stainless steel braided flexible hose with manual shut-
off (ball) valves
• Stainless steel braided flexible hose with manual
deluxe shut-off (ball) valves
• Stainless steel braided flexible hose with manual
circuit-setter valve
• Stainless steel braided flexible hose with automatic
balancing valve
Additional accessories, such as a strainer are
recommended for use to eliminate contaminants from
entering the co-axial water-to-refrigerant heat exchangers.
Note: Hoses should be no longer than 24”
Field Installed Power Wiring
Verify that the power supply available is compatible with
the unit’s nameplate. Use only copper conductors to
connect the power supply to the unit.
WARNING
Proper Field Wiring and Grounding
Required!
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Failure to
follow code could result in death or serious injury.
NOTICE:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of
conductors. Failure to use copper conductors may
result in equipment damage.