Daikin Trailblazer AGZ030E-070E Installation, Operation And Maintenance Manual page 42

Pump packages may be single or dual pump arrangement.
Each pump is a vertical, in-line, radially split-case pump with a
single spring inside mechanical seal with carbon against silicon
carbide faces. Each case is cast iron. Impellers are bronze,
trimmed to design conditions and then balanced. The shaft
sleeve is bronze, extending the full length of the seal area.
Dual pumps are mounted in a common casing with a
common inlet connection and outlet connection. The pumps
are designed for duty/standby, not parallel operation, and is
capable of having one side running at one time. A flapper valve
on the discharge side of the casing is flipped over to the side
by the moving water to prevent recirculation when only one
pump is operating.
The servicing of one side of the pump will require the following:
a. to stop running the pump
b. remove the one rotating head
c. install a gasket and blanking plate on one side of
the pump casing
d. start the pump back up with the one rotating head
and the defective one can be serviced.
For all pump arrangements, each pump is serviceable without
breaking pipe connections. The motor and pump rotating
assembly can be serviced without removing the pump casing
from the line.
All information and performance curves for the single pump
arrangement can be used for the dual pump arrangement.
Pump performance curves are generated by Daikin Tools for
the specific criteria of the installation. Contact a Daikin Applied
Dual Pump Package with Storage Tank
representative for this information.
Figure 45: Pump Package Standard Components
Included with all Pump Packages
1. Wye – Strainer
3. Pump
4. Suction Guide
7. Heat Exchanger
8. Flow Switch
9. Triple Duty Valve
15. Butterfly Valve
14. Internal to Pu- m p Check Valve s
*Only with dual pumps
IOM 1207-6 • TRAILBLAZER
04/30/2007 TDN
07/31/2015 LTN
02/07/2019 DCG
Factory Mounted or Field Supplied
2. Expansion Tank
6. Pressure Gauges
Factory or Field Supplied but Field Mounted
5. Air Vent Connection Port
11. Flex Connections
13. Air Separator and Vent
MODEL AGZ CHILLERS
®
Additional factory provided components:
• "Y" type inlet strainer (shipped loose)
• Combination triple-duty outlet valve having a drip-tight
discharge shutoff valve, non-slam check valve, and flow
throttling valve (shipped loose)
• Combination suction guide with flow stabilizing outlet
vanes and stainless steel strainer with a disposable fine-
mesh strainer for start-up
• Factory power and control wiring from the AGZ-E chiller
to the pump package control panel
• Flow switch mounted and wired
• Interconnecting piping with grooved couplings
• Insulation of all cold surfaces
Optional components that may be factory or
field supplied:
• Water pressure gauges on the pump suction and
discharge
• Expansion tank with size increments from 4.4 to 90
gallons, field installed (small sizes can be factory
mounted)
• Air separator with air vent, field installed
• Flex piping connections, field installed
• Storage tanks - vertical, insulated, (150, 300, 600,
1000 gallon sizes) with optional immersion heater, field
installed.
Field Supplied and Mounted
10. Pressure Relief
12. Pressure Reducing / Fill Valve
Note: Pump Package insulation is included
42
Pump Packages
Optional dual pump shown in diagram
www.DaikinApplied.com