176
RT-SVX24Q-EN
Table 61. eFlex™ staging sequence and compressor data (continued)
150 Ton eFlex™ Variable Speed Compressor
Stage
1A CSHN250 1B CSHN184 1C CSHN374 2A VZH170 2B CSHN374
VZH min
Speed
VZH max
Speed
1 X 3360 5280
2 X X 1500 6000
3 X X X 1620 5000
4 X X X 1800 6000
5 X X X X 1500 5280
6 X X X X 1500 6000
7 X X X X X 1500 6000
Evaporative Condenser Startup
IImmppoorrttaanntt:: Water treatment by a qualified water
treatment expert is required to ensure
proper equipment life and product
performance. If a water treatment system is
not operating on the unit, do not proceed.
Startup for evaporative and air-cooled condensers is
initially the same. In addition, the following is required
for evaporative condensers prior to startup:
• All water and drain connections must be checked
and verified
• Evaporative condensers will ship with a fan support
channel to reduce damage caused by vibration
during shipment. The shipping support brackets
must be removed prior to unit startup. See below
and see Figure 135, p. 177 for removal instructions.
• Verify that inlet water pressure is 35-60 PSIG,
dynamic pressure (measured with the valve open)
• Verify that drain valve is set to "drain during power
loss" or "hold during power loss" per job
specification
• Upon a call for cooling, the sump will fill with water.
Verify that the sump fills to a level within the slot on
the max float bracket as shown in Figure 136, p.
177.
TToo rreemmoovvee sshhiippppiinngg bbrraacckkeettss::
IImmppoorrttaanntt:: Remove fan shipping brackets before
startup. Failure to remove brackets could
result in fan damage.
Evaporative condensers are shipped with fan shipping
brackets to reduce damage caused by vibration during
shipment. The fan shipping brackets must be removed
prior to unit startup. To remove the shipping brackets
start from the side opposite to the drain actuator:
1. Loosen the screw for the bracket that holds the inlet
louvers below the door side.
2. Remove inlet louvers and set to the side.
NNoottee:: Service technician may need to step on the
horizontal surface of FRP coated base. Step
with care.
3. Unscrew the bolt in the middle of the door. Keep
the bolt in a safe place.
4. Lift one door with handle until it touches the top.
Swivel bottom of door to remove it from the door
opening and set it to the side.
5. Slide and remove the middle mist eliminator
section so that the shipping bracket is visible.
6. Use screw gun to unscrew the two screws that hold
the fan shipping bracket. The bracket should drop
down but still remain engaged with a hook on the
bracket.
7. Go to the other side of the unit and follow the
procedure for inlet louver and door removal
(see steps 1 - 6).
8. Hold the bracket with one hand and remove
remaining two screws.
9. Remove the bracket and all the removed screws
from the unit.
IImmppoorrttaanntt:: Make sure there are no screws
remaining in the coil area.
10. Reinstall inlet louvers, mist eliminators and louvers.
11. Check that the direction of arrow on the inlet louver
is correct
UUnniitt SSttaarrttuupp
To Next Page
Loading...
Need help?
General
