Digital Commemorative Magazine - 12

ClimateMaster & ClimaCool

Modular heat pump chillers provide a redundant, simultaneous heating and cooling solution while
freeing up ﬂoor space and saving energy.
power to each module along with dual scroll
compressors, which provide built-in operational
redundancy and unloading capabilities. Two
units are sized to maintain the load, while a third
provides system redundancy and supplements
lost capacity during defrost cycles.
Heat pump chillers are an eﬃcient, economical
option for heating and cooling. The heating
eﬃciency is about twice as high as a boiler, while
all contained in the footprint of a single module.
The measurement of eﬃciency for heating is the
coeﬃcient of performance (COP). COP is a ratio of
useful heating or cooling provided to work required.
Higher COPs equate to lower operating costs.
Modular chillers use reliable and highly eﬃcient
316 stainless steel brazed plate heat exchangers.
These compact exchangers are true dual-circuit
heat exchangers in which each water channel is
ﬂanked by two refrigerant circuits. This design
gives maximum performance, even at part load.
Air-cooled condenser coils with aluminum ﬁns and
copper tubes with coil guards act as the source or
means of rejection of heat for the modular SHC

heat pump. Ultraquiet notched blade, highly
eﬃcient, variable speed, electronically commutated
(EC) condenser fans with integral head pressure
control are provided as standard. The integrated
variable speed drives are equipped with a solidstate motor overload protection and a solid-state
short circuit protection.
A CoolLogic™ Master Control enables six stages
of loading and three stages of ﬂow. By pairing heat
pump compressor staging with variable primary
ﬂow (VPF) chilled and hot water pumps, maximum
eﬃciency is obtained. This eﬃciency comes from
varying the speed of the pump to match the ﬂow
required for only the modules that are in operation.
This ﬂow matching is obtained by a simple diﬀerential pressure (DP) sensor installed across the
chiller bank water headers.
Each SHC heat pump bank includes BACnet
building automation system (BAS) interface for
ASHRAE Building EQ integration. Water isolation
valves and ﬂush ports allow module isolation,
which enables simple service and maintenance
while other modules continue operating.

Digital Commemorative Magazine

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