Dual High Head Pump Package - Trane CGAM Installation & Operation Manual

Installation - Mechanical

Dual High Head Pump Package

Pump package includes: two high head pumps, VFD, expansion vessels, drainage valves, shut-off
valves at entering and leaving connections. See
The pump package is single point power integrated into the chiller unit power with a separate
factory wired control panel. The control of the pump is integrated into the chiller controller. The
CH530 displays evaporator pump starts and run-times. Freeze protection down to an ambient of
-20°F (-29°C) is included as standard. The cold parts of the pump package will also be insulated.
Designed with one redundant pump, the chiller controls both pumps through a lead/lag and failure/
recovery functionality.
A variable speed drive is installed in an additional panel to control the pump. The inverter should
be adjusted by the customer upon start up to balance the system flow and head requirements. The
purpose is to save on wasted pump energy caused by a traditional balancing valve.
Note: Speed command is also available for customer-provided variable flow input.
Figure 55. Field water piping pump package unit
Table 26. Field water piping components - unit with pump package option
Item
1
2
A
B
68
B
CGAM Unit
with Pump Package
Option
Description Item
Bypass Valve 3
Isolator Valve
Isolate unit for initial water loop cleaning
See Figure 56, p. 69 for CGAM pump package unit schematic.
Figure 56, p. 69.
2
3
1
A
2
3
CUSTOMER PIPING
Description
Vibration Eliminator
Building/
Process Load
CG-SVX17D-EN