®
www.climacoolcorp.com
16
Figures 19 and 20 on page 16). The purpose of the chiller/
heater system bypass is to prevent deadheading of the
pumps when all of the internal unit valves go closed as well
modules remaining for that duty. Also, with a module acting
as a bypass increased wear of heat exchangers may be
bypass kits must be installed on each water source loop
and controls are integrated with the CoolLogic software.
Installation location can be found on page 16 – Water Piping
The design piping must accommodate one module’s worth
he eld supplied piped chiller/
heater system bypass must be controlled by others. There
are system communication delays, polling and network
water/evaporator, hot water/condenser water systems.
LOAD 1
FROM CHILLER BANK
TYPICAL LOAD BYPASS VALVE ARRANGEMENT
TO CHILLER BANK
LOAD 2 LOAD 3 LOAD X
TYPICAL CHILLED AND HOT WATER
LOAD SIDE BYPASS VALVES
SIZE EQUIVALENT TO ONE MODULE
WORTH OF FLOW
Figure 18 - Typical Load Bypass Valve Arrangement
HEADER BYPASS
REVERSE RETURN
No.10
2" 90°
No.50
Reducer
6 x 2
Module
Header
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
Module
Header
SIDE VIEW
6"
Grooved Coupling
6"
Grooved Coupling
2"
Grooved
Coupling
Hose Kit
2"
Grooved
Coupling
2" Belimo
Ball Valve &
Actuator
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
END VIEW
No.10
2" 90°
Elbow
No.50 Reducer
6 x 2
Hose Kit
2" Belimo
Ball Valve &
Actuator
2"
Grooved
Coupling
HEADER BYPASS
REVERSE RETURN
No.10
2" 90°
No.50
Reducer
6 x 2
Module
Header
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
Module
Header
SIDE VIEW
6"
Grooved Coupling
6"
Grooved Coupling
2"
Grooved
Coupling
Hose Kit
2"
Grooved
Coupling
2" Belimo
Ball Valve &
Actuator
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
END VIEW
No.10
2" 90°
Elbow
No.50 Reducer
6 x 2
Hose Kit
2" Belimo
Ball Valve &
Actuator
2"
Grooved
Coupling
Figure 17 - Reverse Return
No. 25 Grooved Branch
6 x 6 x 2
Module
Header
6"
Grooved Coupling
HEADER BYPASS
DIRECT RETURN &
SIMULTANEOUS HTG & CLG
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
Module
Header
6"
Grooved Coupling
SIDE VIEW
No. 25 Grooved Branch
6 x 6 x 2
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
END VIEW
Hose Kit
2" Belimo
Ball Valve &
Actuator
2"
Grooved
Coupling
2" Belimo
Ball Valve &
Actuator
Hose Kit
2"
Grooved
Coupling
No. 25 Grooved Branch
6 x 6 x 2
Module
Header
6"
Grooved Coupling
HEADER BYPASS
DIRECT RETURN &
SIMULTANEOUS HTG & CLG
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
Module
Header
6"
Grooved Coupling
SIDE VIEW
No. 25 Grooved Branch
6 x 6 x 2
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
END VIEW
Hose Kit
2" Belimo
Ball Valve &
Actuator
2"
Grooved
Coupling
2" Belimo
Ball Valve &
Actuator
Hose Kit
2"
Grooved
Coupling
Figure 16 - Direct Return
Water Piping
TYPICAL CHILLED AND HOT WATER
LOAD SIDE BYPASS VALVES
SIZE EQUIVALENT TO ONE
MODULE WORTH OF FLOW
Load Side System Bypass (Air Handlers, Fan
Coils, etc.)
A load system bypass is required for preventing pump
Examples of an acceptable load side system bypass are:
• Utilize a quantity of 3-way control valves on the largest
loads farthest from the chiller/heater system.
• Field piping with a control valve to provide a bypass
across the larger system loads when their 2-way valves
go closed.
Please refer to Figure 18 for a typical load bypass
valve arrangement. The load side system bypass should be
sized for an absolute minimum of one module’s worth of
ton are also required to maintain proper system thermal
inertia. This is to avoid short cycling of compressors in the
chiller/heater system as well as prevent nuisance alarms.
To Next Page
Loading...