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16. Insulate the economizing piping package and the
supply/return/by-pass hoses (3-hoses) via field
provided pipe insulation. Insulating the piping will stop
condensation from forming on the pipe and dripping
onto the ceiling tiles.
Note: Trane does not provide insulation on the
economizing piping package.This insulation must
be field provided and field installed.
Note: Trane does not provide condensate overflow
protection of the waterside economizer.This must
be field provided and installed.
17. Install filter rack (top and bottom) to the economizing
package.The filter rack is located in the unit's
packaging along with the filter.
18. Hang unit. See
Figure 54, p. 57
packaged unit. Bottom screws referenced in
must be installed at this time.
19. Field pipe the drain lines of the waterside economizer
and water-source heat pump together prior to
installing a condensate trap (see
Figure 55, p. 57
for proper trapping of condensation.
Figure 80. Step 19
Table 44.
Economizer part numbers
GEH Unit 60
GEH Unit 50
Hz
Hz
006-015
006-012
018-030
015-024
035-042
030-036
048-060
042-048
EXH Unit 60
EXH Unit 50
hz
Hz
006-015
—
018-024
—
030-036
—
042-070
—
WSHP-SVX01Q-EN
for hanging of the
Step 4
Figure 80, p.
65. See
Waterside Economizer Part
Number
4474 1690 0100
4474 7072 0100
4474 1692 0100
4474 1693 0100
Waterside Economizer Part
Number
4474 1690 0100
4474 7072 0100
4474 1692 0100
4474 1639 0100
Waterside Economizer Installation for GEH
and GEV 6 to 25 Ton Models
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. 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.
1. Remove the filter frame from the unit.
2. Remove the waterside service panel from the unit.
3. Remove the control box service panel from the unit.
4. Remove the economizer and miscellaneous mounting
parts from it's packaging.
5. GEV ONLY: Mount the economizer support angle (4475
1637 0100) found in the economizer packaging in the
same holes of the return air filter frame removed in
Step
1.The support angle screws into the unit roof.
6. GEV ONLY: Hang the economizer assembly from the
economizer support angle mounted in
7. Secure the economizer to the unit using the four plates
(4475 1630 0100) found in the economizer packaging.
Two plates should be applied to each economizer side.
GEV ONLY: Secure the bracket on the bottom of the
economizer cabinet to the unit compressor
compartment center post.
8. Install the field portion of the water piping and the 3-
way valve together.
9. Verify the control board for the waterside economizer
is located at the back of the control box.The
temperature rating of this board is factory set to 55ºF .
10. Thread the economizer's entering water temperature
sensor (4RT1) through the water-in line of the water-
source heat pump upstream from the valve.This
sensor is used by the economizer's 3-way valve to
determine if water flow should be directed through the
waterside economizing coil.
11. Tie wrap the thermistor to the water line (supply side)
upstream of the water pipe to the economizer.The
thermistor must be situated so that the thermistor is
Installation
Step
5.
65
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