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Installation Electrical
Wiring and Piping
Modules must be installed in accordance with the
manufacturer's recommendations where shown on the
drawings and other installation documents.
Each PolyTherm Chiller/Heater module is shipped
individually for field assembly. Field assembly of a
PolyTherm Chiller/Heater system consists of the
following minimum steps:
1. Connect chilled fluid/heating fluid piping with
factory supplied roll grooved connections.
2. Insulate roll grooved connections after assembly.
3. Connect factory-supplied power supply wiring
harnesses to the power distribution panel. Install
wires to the proper terminals for proper phasing.
The panel is wired for A, B, C phase right-to-left in
the power distribution panel. Each wire on the wire
harness is identified as to its respective phase.
4. Connect each module microprocessor to the
Ethernet switch to form the local communication
network. Ethernet cable Cat-5e must be used for all
communication connections.
Connecting Module Power and
Control Wires
Connections are made at the primary module, which
typically contains the power distribution panel.
Labeled control and communication cables are coiled
inside each module and are connected to an Ethernet
switch. The Ethernet cable tuns from the switch to each
module's microprocessor controller at the J J 3 3 0 0
connector.
Figure 6. Typical controller network
Phase Monitor Installation
The chiller/heater is equipped with a phase monitor on
the power distribution panel. It communicates with the
primary microprocessor controller in the primary
module electrical and control panel via the id9
ARTC-SVX005B-EN
I I m m p p o o r r t t a a n n t t : : Electrical Hazards: Read before installing!
This equipment must be installed by
qualified personnel in accordance with all
local and national codes. An earth ground
lug is provided on the cabinet exterior for
proper grounding according to national
electrical codes. An earth ground is
necessary to ensure personnel safety to
prevent electrical hazards around this
equipment. Read and follow installation
instructions for proper operation.
This unit is equipped with a flow switch. The chiller/
heater will not run unless the pump is circulating water
through the system.
Service Access
Compressors, filter-strainers, and liquid line shutoff
valves are accessible on each side or end of the unit.
Chiller/Heater Module Main Power
Modular systems feature single-point power
connection from the utility service to the power
distribution panel on the primary module as standard.
Main power phases A, B, and C are connected to
terminals A, B, and C respectively from left to right.
(Some custom systems may have individual power
supplied to each module in lieu of single point power.)
Module Control Wiring
The primary controller communicates with the
secondary controller in each chiller module via a
communication circuit. Each secondary controller is
wired back to the Ethernet switch on the primary
microprocessor controller. See following figure.
terminal. Ensure that the wiring from the primary
microprocessor controller and terminal blocks to the
phase monitor are connected and secure.
The phase monitor continuously monitors each of the
three phases. The microprocessor receives input from
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