ClimaCool SHC onDEMAND 15 Instruction manual

on
DEMAND
®
SIMULTANEOUSHEATING AND COOLING
95B0059N01
on
DEMAND
®
SIMULTANEOUS HEATING AND COOLING
95B0059N01
• •
Water Cooled Ultimate Chiller Solutions
Simultaneous Heating and Cooling Heat Pump
and Heat Recovery
Model SHC onDEMAND: 15, 30, 50, 70 and 85 tons
Installation, Operation & Maintenance Manual

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Table of Contents
Introduction .........................................1
Pre-Installation .......................................2
UCH Simultaneous Model Key .........................3
Physical Data.........................................4
Dimensional Data Drawings ..........................5-6
Rigging and Lifting Procedures ........................7
Mounting Rail and Vibration Isolation ...................8
Recommended Service Clearances .....................9
Unit Installation ...................................10-12
Electrical Connections................................13
Communications Wiring ..............................14
Voltage/Phase Monitor Wiring Diagram.................15
Water Piping ......................................16-17
 ...........................18
Hydronic Refrigeration ...............................19
Filling the Water System..............................20
Water Treatment ....................................21
Water Temperature Requirements ....................22
Operating Limits.....................................23
Condenser & Evaporator Water Pressure Drop Charts ....24
Glycol Performance Adjustment Factors Charts ........25-26
Pre-Startup .........................................27
Pre-Startup Check List (SHC onDEMAND) .............28
Startup..........................................29-30
Subcooling & Superheat Flow Chart....................31
Startup and Warranty Form ...........................32
Chiller Operation and Maintenance ....................33
Heat Exchangers ....................................34
Cleaning Arrangement ...............................35
Compressor Information .............................36
Refrigeration Circuit Diagrams .....................37-38
Refrigeration System Re-Processing ...................39
 ...................40-41
Options & Accessories ...............................42
Stainless Steel Strainer Option .....................43-47
Y and Basket Strainers ...............................48
Electrical Data UCH ..................................49
Power Distribution Drawing...........................50
Wiring Diagrams...................................51-61
Troubleshooting Guide ............................62-63
 .................................64

1
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General Description
The SHC onDEMAND eliminates the need to have separate
equipment for heating and cooling while saving installation
costs thus reducing the physical footprint and overall
operating costs. It 
demands without using inter-module/external header
isolation valves, controls, associated logic, piping or wiring
while allowing any module to be indexed for heating or
cooling regardless of its position in the bank.
Safety
Throughout this manual warning, danger, caution and
attention notices appear. Read these items carefully
before attempting any installation, service or
troubleshooting of the equipment. All labels on
unit access panels must be observed.
DANGER: Immediate hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING: Potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION: Potentially hazardous situation or an unsafe practice
which, if not avoided, could result in minor or moderate injury,
product or property damage.
ATTENTION: Notication of installed, operation or
maintenance information which is important, but not
hazard-related.
Introduction
WARNING/ADVERTISSEMENT
WATER AND REFRIGERANT
SYSTEMSUNDERPRESSURE
EAU ET FRIGORIGÈNE
EQUIPEMENTS SOUS
PRESSION
• Isolate/Lockout source and relieve
pressure BEFORE servicing
equipment.
• Failure to relieve pressure may
result in property damage, serious
bodily injury or death!
• Isoler la source / de verrouillage
et de soulager la pression avant
entretien de l’équipement.
• Le défaut de soulager la pression
peut entraîner des dommages
matériels des blessures corporelles
graves ou la mort!
ATTENTION
Do not defeat, cap, add piping to the outlet of the valve or attempt to change
the relief setting.
CAUTION/ATTENTION
Single wall heat exchanger, not
suitable for potable water connection.
Single paroi echangeur, non approprié
pour le raccordement d’eau potable.
CAUTION/ATTENTION
Excessive Chlorine, undissolved
solids and other improper water
conditions WILL DAMAGE the
internal heat exchanger & WILL VOID
YOUR WARRANTY!
Chlore excessive, solides non dissous
et les autres impropre conditions de
l’eau ENDOMMAGERA l’échangeur
de chaleur interne et ANNULERA
VOTRE GARANTIE!
WARNING/ADVERTISSEMENT
VERY HOT WATER! L’ E A U T R ÉS CHAUDE!
CAUTION/ATTENTION

installed wiring. Unit terminals are
not designed to accept other types of
conductors.
Utilisez uniquement des conducteurs en
cuivre pour le câblage. Bornes de l’unité
ne sont pas conçus pour accepter
d’autres types de conducteurs.
WARNING/ADVERTISSEMENT
Disconnect power supply(ies)
before servicing. Refer servicing

Electric shock hazard. May
result in injury or death!
Debrancher avant d’entreprendre
le dépannage de l’appareil.

pour le dépannage. Risque de
choc électrique. Résiltat de mai
dans dommages ou la mort!
CAUTION/ATTENTION

personnel only. Refrigerant
system under pressure. Relieve
pressure before using torch.
Recover refrigerant and store or
dispose of properly.
Conifer la maintenance à un


Décomprimer avant d’exposer

frigorigene et le stocker ou le
détrulre correctement.
ATTENTION
To avoid the release of refrigerant into the atmosphere, the refrigerant circuit of
this unit must be serviced only by technicians who meet local, state and federal

All refrigerant discharged from this unit must be recovered WITHOUT
EXCEPTION. Technicians must follow industry accepted guidelines and all
local, state and federal statues for the recovery and disposal of refrigerants.
If a compressor is removed from the unit, system refrigerant circuit oil will
remain in the compressor. To avoid leakage of compressor oil, the refrigerant
lines of the compressor must be sealed after it is removed.
CAUTION/ATTENTION
3 PHASE SCROLL
COMPRESSOR UNIT
UNITÉ COMPRESSEUR
SCROLL 3-PHASE
If this unit uses a 3 Phase Scroll
Compressor, the following instructions
MUST BE followed:
• Unit power supply MUST BE wired
in the proper sequence to avoid
damage to the 3 Phase Scroll
Compressor;
• Scroll Compressors with
INCORRECT rotation show the
following characteristics:
- High sound level;
- High suction pressure and low
discharge pressure;
- Low current draw.
• If any of the three above
characteristsics exist, swap
two of the three supply wires
at the disconnect and recheck
compressor for incorrect rotation.
Si cet appareil utilise compresseur
scroll 3-Phase, les instructions
suivantes doivent être suivies:
• L’alimentation de l’appareil doit
être monté dans l’ordre correct
pour éviter endommager le
compresseur scroll 3-Phase;
• Compressuers scroll avec
rotation incorrecte montrent les
caractéristiques suivantes:
- Haut niveau de son;
- Pression d-aspiration élevée
et une faible pression de
décharge;
- Faible ampérage.
• Si l’un des trois éléments
mentionnés ci-dessus sont
remplies, échanger deux des trois
lignes électriques alimen tant la

la rotation du compresseur.

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Pre-Installation
Inspection
Upon receipt of equipment, carefully check the shipment
against the bill of lading and inspect each chiller for any
damage incurred during shipment. Thoroughly check for
any visible damage of control panels and electrical
and/or refrigeration components or broken copper lines.
The carrier must make proper notation of any damages or
shortages on all copies of the bill of lading and complete

acceptance of the shipment. Note: It is the responsibility

carrier. In addition, please notify the ClimaCool Customer
Service Department at 405-815-3000 or customerservice@
climacoolcorp.com of all damage immediately.
Storage
Store chillers in an upright position and kept in a clean,
conditioned, dry space between 55-105 ambient.
Handling of Modules
Carefully remove the module’s packaging. The chiller’s
steel base cutouts provide maneuverability by forklift or

Procedures Figures 1 - 3 on page 7). Verify that all header
grooved couplings and mounting hardware kits are on site
prior to connecting the modules.
Rigging and Lifting
Each module should be lifted by using a pallet jack or fork
lift. If it is necessary to utilize a crane for rigging or lifting,
each module shall be lifted by using lifting straps and

Rigging and Lifting Procedures.
Warranty
To ensure proper equipment longevity, design performance
and reliability, all ClimaCool chillers must be installed,
operated and maintained in accordance with the
appropriate ClimaCool IO&M manuals. Water quality is of
the utmost importance for the proper care and maintenance
of your modular chiller system and regular treatment of
the water will increase longevity of your system. Failure
to provide adequate ltration or treatment of evaporator
and condenser water will void the ClimaCool module’s
warranty. A factory authorized technician is required to
perform the startup of your ClimaCool chiller. Please contact
the ClimaCool Customer Service Department at 405-815-
3000 or [email protected] to schedule
a date for your startup. There is a minimum of three (3)
weeks notice required to schedule your factory startup.
Simultaneous Hea�ng and Cooling Chiller System Model Key
REJECTION MEANS H = High Temperature MODEL CONFIGURATION
E = Seismic Cer�fica�on S = Standard
REFRIGERANT OPTIONS
NOMINAL TONS
0 = (None) B = Hot Gas Bypass - Both Circuits (Not available with Heat Pump applica�on) P = Hot Gas Bypass with Pressure Relief Valves R = Pressure Relief Valves
015 030 050 070 085
DESIGN SERIES
A
WATER ISOLATION VALVES B = Evap & Condsr Motorized Valves
VOLTAGE F = 460/3/60 H = 208-230/3/6 N = 575/03/60
APPLICATION
CONTROLS & ELECTRICAL
S = Simultaneous Hea�ng & Cooling Heat Pump (6 headers) W = Simultaneous Hea�ng & Cooling - Heat Recovery (6 headers)
A = Standard Controls B = 65 KA SCCR N = Fail to Run 6 = 65 KA SCCR & Fail to Run
COMPRESSOR TYPE D = Digital Scrolls (15 & 30 ton only) E = Sound Blankets F = Digital Scrolls & Sound Blankets R = VFD on Lead Compressor & Sound Blankets S = Scroll T = VFD on Lead Compressor V = VFD on Both Compressors Z = VFD on Both Compressors & Sound Blankets * All SHC Units in a Single Bank should have the same Compressor Type
REFRIGERANT A = R-410A
UC F S030 AH S A CA 0 0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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UCH Simultaneous Model Key
Simultaneous Hea�ng and Cooling Chiller System Model Key
REJECTION MEANS H = High Temperature MODEL CONFIGURATION
E = Seismic Cer�fica�on S = Standard
REFRIGERANT OPTIONS
NOMINAL TONS
0 = (None) B = Hot Gas Bypass - Both Circuits (Not available with Heat Pump applica�on) P = Hot Gas Bypass with Pressure Relief Valves R = Pressure Relief Valves
015 030 050 070 085
DESIGN SERIES
A
WATER ISOLATION VALVES B = Evap & Condsr Motorized Valves
VOLTAGE F = 460/3/60 H = 208-230/3/6 N = 575/03/60
APPLICATION
CONTROLS & ELECTRICAL
S = Simultaneous Hea�ng & Cooling Heat Pump (6 headers) W = Simultaneous Hea�ng & Cooling - Heat Recovery (6 headers)
A = Standard Controls B = 65 KA SCCR N = Fail to Run 6 = 65 KA SCCR & Fail to Run
COMPRESSOR TYPE D = Digital Scrolls (15 & 30 ton only) E = Sound Blankets F = Digital Scrolls & Sound Blankets R = VFD on Lead Compressor & Sound Blankets S = Scroll T = VFD on Lead Compressor V = VFD on Both Compressors Z = VFD on Both Compressors & Sound Blankets * All SHC Units in a Single Bank should have the same Compressor Type
REFRIGERANT A = R-410A
UC F S030 AH S A CA 0 0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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Physical Data
Model UCH Module and Compressor SHC onDEMAND®
15 30 50 70 85
Capacity (tons)118.5 31.8 51.6 67.3 81.7
kW/Ton 0.716 0.73 0.74 0.74 0.75
Refrigerant Circuits (quantity) 2 2 2 2 2
Compressor Type Scroll Scroll Scroll Scroll Scroll
Compressor Quantity 2 2 2 2 2
Compressor Nominal Hp (per circuit) 8.6 15 25 35 40
Refrigerant Charge R-410A (lbs) 20 30 55 60 80
Module Operating Weight w/Water (lbs)2- SHC Heat Pump 1,940 1,950 2,560 2,810 3,480
Module Shipping Weight (lbs)3- SHC Heat Pump 1,620 1,630 2,250 2,500 2,980
Module Operating Weight w/Water (lbs)2- SHC Heat Recovery 2,005 2,015 2,770 2,910 3,550
Module Shipping Weight (lbs)3- SHC Heat Recovery 1,685 1,695 2,460 2,600 3,050
Model UCH Condenser 15 30 50 70 85
Heat Exchanger (type) Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate
Independent Refrigerant Circuits (quantity) 2 2 2 2 2
Water Storage Volume HX Only (gals) 2.9 3.2 6.1 7.3 11.4
Water Storage Volume HX Plus Main Headers (gals) 12.8 13.1 16.7 17.9 26.2
System Volume4Min 105 180 300 420 510
Maximum Design Working Pressure - Water Side (psi) 300 300 300 300 300
Header Water Connections - Inlet/Outlet (inches)566668
Model UCH Evaporator 15 30 50 70 85
Heat Exchanger (type) Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate
Independent Refrigerant Circuits (quantity) 2 2 2 2 2
Water Storage Volume HX Only (gals) 2.3 2.8 5.1 6.5 9.7
Water Storage Volume HX Plus 6” Main Headers (gals) 12.3 12.8 15.7 17.1 24.5
System Volume (gals)4Min 105 180 300 420 510
Maximum Design Working Pressure - Water Side (psi) 300 300 300 300 300
Header Water Connections - Inlet/Outlet (inches)566668
Notes:
1. Cooling ratings in accordance with AHRI Standard 550/590.
2. Module operational weight includes water, compressor oil, and refrigerant charge. Multiply times the number of modules for a total system operational weight.
3. Unit shipping weight includes refrigerant charge, compressor oil and packaging.
 󰀨
 
 
.00025 hr-ft2-°F/Btu and 2.4 gpm per ton through the evaporator with a .0001 hr-ft2-°F/Btu fouling factor.
 󰀨

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Dimensional Data Drawings: SHC onDemand Heat Pump Conguration
Unit Dimensions ( in inches)
Model
UCH Voltage
A
Unit
Width
B
Height
Without
Sound
Enclosure
C
Height
With
Sound
Enclosure
D
Header
Width
E
Header
Location
F
Header
Location
G
Header
Location
H
Header
Location
I
Header
Location
J
Header
Location
K
Header
Location
L
Header
Location
M
Unit
Depth
Header
Connection
Size1
015/030 208/230/460/575/3/60 34  78       58 58   6
050 208/230/460/575/3/60 34  78       58 58   6
070 208/230/460/575/3/60 34  78       58 58   6
085 208/230/460/575/3/60 34            67 8
Note:  󰀨

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Dimensional Data Drawings: SHC onDemand Heat Recovery Conguration
Front View
Model 030, 050, 070
Front View
Model 085
Side View
Model 030, 050, 070
Side View
Model 085
Unit Dimensions (in inches)
Model
UCH Voltage
A
Unit
Width
B
Height
Without
Sound
Enclosure
C
Height
Including
Sound
Enclosure
D
Header
Width
E
Header
Location
F
Header
Location
G
Header
Location
H
Header
Location
I
Header
Location
J
Unit
Depth
Including
Sound
Enclosure
K
Header
Location
L
Header
Location
M
Header
Location
N
Header
Location
O
Unit
Depth
Header
Connection
Size1
015/
030
208/230/460/
575/3/60 34  80   28    66  58  N/A  6
050 208/230/460/
575/3/60 34  80   28    66  58  N/A  6
070 208/230/460/
575/3/60 34  80   28    66  58  N/A  6
085 208/230/460/
575/3/60 34         79     67 8
Note:  󰀨

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Figure 1 Figure 2
Rigging
Each module should be lifted by using lift straps threaded through the steel base cutouts and the use of a spreader bar.
Note: If no spreader bar is used, damage to the unit may occur.
Lifting Strap
Lifting Strap
Spreader Bar
Spreader Bar
Spreader Bar
Figure 3
Lifting and Transporting Modules
Pallet jacks or forklifts are required for lifting and transporting the module. Each module has base cutouts provided for ease
of maneuverability. 60” forks are recommended to prevent damage to chiller base.
Rigging and Lifting Procedures

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ClimaCool recommends locking down the chiller to a concrete base or to three (3) 4” base mounting rails using the six (6)
bolt holes provided in each base pan. Due to the low vibration of the modules, ClimaCool does not require the application of
spring isolators or pads. Should isolators or pads be desired, install in accordance with Figures 4 and 5.
Spring Vibration
Isolators (by others)
4” Rail Minimum
Recommended
(by others)
4” Rail Minimum
Recommended
(by others)
4” Rail Minimum
Recommended
(by others)
Spring Vibration
Isolators (by others)
4” Rail Minimum
Recommended
(by others)
Vibration Pads (by others)
Figure 4 - Spring Vibration Isolators Option
Figure 5 – Vibration Isolation Pads Option
Note: 
Mounting Rail and Vibration Isolation

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Recommended Service Clearances
Notes:
1. Allow 36” clearance for electrical panels and 30” clearance for rear service access to modules.
2. Allow a minimum of 18” height clearance for service for 30, 50 and 70 ton modules. Allow 24” for 85 ton modules.
3. Local building or electrical codes may require additional clearance. Consult applicable codes.
Service Clearances SHC - Heat Pump
Service Clearances SHC - Heat Recovery
Top View
Rear Service Access
Front Service Access
36” 36”
30” 30”
Top View
Rear Service Access
Front Service Access
36” 36”
30”
30”

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Unit Placement
ClimaCool modular chillers must be installed in a conditioned

requirement for the chiller is a level surface capable of
bearing the combined operating weight of the modules
(See Physical Data on page 4).
Service Access
The recommended service clearances are 36” for front
access, 18” height clearance for 15, 30, 50 and 70 ton modules,
and 24” height clearance for 85 ton module, 30” for rear
access and at least 12” for side clearance or as required for

8). Local building or electrical codes may require additional
clearance – consult applicable codes.
Draining
When performing standard maintenance procedures such

either heat exchanger. ClimaCool modular chillers provide

drain is helpful when performing standard maintenance
procedures. Warning: Water valves must be reopened after
ushing is complete.
Assembling Modules
ClimaCool recommends locking down the chiller to a
concrete base or to three (3) 4” base mounting rails using
the six (6) bolt holes provided in each base pan. Although
the compressors are installed on anti-vibration mountings,
further isolation of the chiller from the structure is
recommended by installing vibration-eliminating springs
or pads under the base rails on which the chiller will rest
(See Mounting Rail and Vibration Isolation on page 7). One
(1) module should be chosen as the reference module and
carefully located.
Field installed mounting accessories are provided for
adjoining each module:
• Header grooved coupling kits containing six (6) grooved
couplings with gaskets.
• Mounting hardware kit containing necessary bolts,
spacers, nuts and washers.
• Header bank end cap kit containing six (6) grooved
couplings with gaskets and six (6) end caps.
Field installing the mounting hardware kit will assist with


of the unit base pan. First module should be set, then set
adjacent unit on mounting surface roughly aligned 1 ½ inches


and insert bolt through front mounting hole and spacer.
Repeat the process for the rear mounting hole. Line up
mounting hole of adjacent module with bolt from previous
module and working through adjacent modules front base
cutout place a washer, split lock washer and nut. Using the
appropriate tools, tighten hardware assembly until seated.
Grooved Couplings Installation
Inspect the pipe ends to ensure they are free from any
indentations, projections, roll marks, or other harmful
surface defects such as loose paint, scale, dirt, chips,
grease and rust. Inspect the grooved coupling gasket for
any defects. Grooved couplings are used to adjoin a bank
of modules. This requires the temporary removal of all
top, back and side sheet metal panels to obtain additional

couplings can be installed using the following recommended
instructions:
• Review Figure 6, SHC Heat Recovery and Figure 7, SHC
Heat Pump below.
• Headers are numbered indicating the easiest order of
coupling installation.
• SHC Heat Recovery chillers should have couplings
installed on headers 1, 2 and 6 from the top and 3, 4 and 5
from the back of the unit.
• SHC Heat Pump chillers should have couplings installed
from the top.
Figure 6 - SHC Heat Recovery
1 2
3
45
6
Figure 7 - SHC Heat Pump
5
12
3
6
4
Unit Installation

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Unit Installation
• Remove the rubber gasket from the coupling.
• Apply a thin layer of silicone or other non-petroleum
lubricant to both the inner and outer surface of the
gasket to reduce friction.
• Slide the gaskets on the headers as shown in Figure 8.
• Be sure the gasket is completely on the pipe to
eliminate any damage to the gasket.
Figure 8
• With gasket in place on each header of the positioned
unit (see Figures 9 and 10), move the second module into
position and line up the piping. Ensure alignment is main-
tained for any additional modules to be added.
Figure 9 - SHC Heat Recovery
Figure 10 - SHC Heat Pump
• Open the coupling by completely removing one bolt and
nut (see Figure 11).
• 
keeping the coupling intact.
• Install with the nuts facing up for fastening.
• When the pipes ends are aligned, slide the gasket over
the ends and center it between the grooves.
• No part of the gasket should protrude into the groove of
either pipe end.
• Place coupling halves over the gasket and make sure that
the coupling keys (the part that goes into the groove),
are engaged into the grooves.
Figure 11
• Insert the previously removed bolt from the bottom to
re-attach the two sides of the coupling (see Figure 12).
• Tighten nuts alternately and equally until the bolt pads
meet and make metal-to-metal contact.
• Tighten nuts by another ¼ to ½ turn to make sure the
nuts and bolts are snug and secure, the use of a torque
wrench is usually not required.
• Uneven tightening of bolts may cause the gasket to be
pinched resulting in immediate or delayed leaks.
• Replace all sheet metal panels.
Figure 12

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Unit Installation
Header Insulation
Chilled water piping is pre-insulated on each module at
the factory with ¾” closed cell insulation. After bolting
all modules together and leak testing, the entire coupling
connection needs to be insulated by the installing contractor.
Sound Attenuation Panels and Gasket
Attenuation panels are enclosures made of 18 gauge

insulation. Field installed panel package includes two (2)
upper panels and one (1) lower panel for each side of bank
for both SHC heat pump and heat recovery models. Factory
installed panels include:
• Heat Pump 30, 50, 70Ton – four (4) front and back panels
and one (1) top cap made up of four (4) panels
• Heat Pump 85Ton - four (4) front and back panels and one

• Heat Recovery 30, 50, 70Ton – four (4) front and back
panels and two (2) top cap made up of seven (7) panels
• Heat Recovery 85Ton - four (4) front and back panels and
two (2) top cap made up of eight (8) panels
Install panels by setting in place and locking down with the
half turn latches or with self-tapping screw. Note: Panel
package includes a compressed 1” x 1”gasket sealant tape
for installation between modules. Install the tape on the
outer frame on the side of one module prior to installing the
adjacent modules.

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The power for all modules is taken from a suitable circuit
breaker/fused disconnect power supply within the main
panel. The electrical service enters the individual modules
through the top into the module’s control panel enclosure.
Proper grounding of the module is mandatory. Before
carrying out any electrical work, conrm that the main
supply is isolated. A typical power wiring is located on page
48 – Power Distribution Drawing. Knockout drawings are
provided. Do not drill into cabinet; shavings can damage
electronic components. The power for all individual modules
shall be in compliance with all local and national codes.
CoolLogic Control System Wiring
A separate 115 volt power supply is required to power the
CoolLogic Master Control Panel. Communication between
the Master Control Panel and chiller modules requires a
simple two-conductor 22 AWG shielded cable rated at 60°C
minimum, daisy chain connection. Control wiring cannot be
installed in the same conduit as line voltage wiring or with
wires that switch highly inductive loads such as contactor
and relay coils.
See the ARC156 Specications on the next page. Refer to
the Power Distribution drawing on page 48 of this manual
for more information. All wiring shall be in compliance with
all local and national codes.
Electrical Phase Sequencing
Proper clockwise rotation for scroll compressor motors
is important to prevent damage to the compressors.
ClimaCool recommends the use of a phase sequence
indicating instrument following the manufactures
directions. An alternative is to “bump test” the compressors
one at a time with pressure gauges attached to the high and
low gauge ports of the compressors to check for proper
rotation. Energize the compressor for a few seconds to

If the discharge pressure does not increase, proper
rotation is reversed. Compressor rotation can be reversed
by opening the main electrical disconnect and switching
any two of the main power supply leads feeding that
compressor’s contactor.
Proper Voltage Balance
Occasionally, in three phase circuits, a voltage imbalance
occurs between phases. It is not recommended to operate
equipment when an imbalance greater that 2% occurs. This

their longevity. The following example describes how to
calculate the average voltage of the three phases to see if
the imbalance is greater than 2%.
Example: Line 1 = 226v Line 2 = 230v Line 3 = 228v
The average is: (226+230+228) / 3 = 228v
Next, [100(228-226)] / 228 = 0.9%
The voltage imbalance of the three phase circuit is 0.9%.
This is well under the 2% range.
Voltage/Phase Monitor

installation with the CoolLogic Master Control Panel. The
voltage/phase monitor helps guard the chiller bank against

conditions which could void your warranty. The voltage/
phase monitor has three wires that connect to the main
three phase power chiller bank input. Two low voltage
control wires are connected to the CoolLogic Master Control
Panel. Do not install control wiring in the same conduit
as line voltage wiring or with wires that switch highly
inductive loads such as contactor and relay coils. Note: It
is mandatory to install one (1) monitor per bank at main
power distribution panel to monitor voltage and phasing
of power to the modules. See Wiring Diagram on page 15.
Electrical Connections
CAUTION/ATTENTION

installed wiring. Unit terminals are
not designed to accept other types of
conductors.
Utilisez uniquement des conducteurs en
cuivre pour le câblage. Bornes de l’unité
ne sont pas conçus pour accepter
d’autres types de conducteurs.
WARNING/ADVERTISSEMENT
Disconnect power supply(ies)
before servicing. Refer servicing

Electric shock hazard. May
result in injury or death!
Debrancher avant d’entreprendre
le dépannage de l’appareil.

pour le dépannage. Risque de
choc électrique. Résiltat de mai
dans dommages ou la mort!
CAUTION/ATTENTION

personnel only. Refrigerant
system under pressure. Relieve
pressure before using torch.
Recover refrigerant and store or
dispose of properly.
Conifer la maintenance à un


Décomprimer avant d’exposer

frigorigene et le stocker ou le
détrulre correctement.
CAUTION/ATTENTION
3 PHASE SCROLL
COMPRESSOR UNIT
UNITÉ COMPRESSEUR
SCROLL 3-PHASE
If this unit uses a 3 Phase Scroll
Compressor, the following instructions
MUST BE followed:
• Unit power supply MUST BE wired
in the proper sequence to avoid
damage to the 3 Phase Scroll
Compressor;
• Scroll Compressors with
INCORRECT rotation show the
following characteristics:
- High sound level;
- High suction pressure and low
discharge pressure;
- Low current draw.
• If any of the three above
characteristsics exist, swap
two fo the three supply wires
at the disconnect and recheck
compressor for incorrect rotation.
Si cet appareil utilise compresseur
scroll 3-Phase, les instructions
suivantes doivent être suivies:
• L’alimentation de l’appareil doit
être monté dans l’ordre correct
pour éviter endommager le
compresseur scroll 3-Phase;
• Compressuers scroll avec
rotation incorrecte montrent les
caractéristiques suivantes:
- Haut niveau de son;
- Pression d-aspiration élevée
et une faible pression de
décharge;
- Faible ampérage.
• Si l’un des trois éléments
mentionnés ci-dessus sont
remplies, échanger deux des trois
lignes électriques alimen tant la

la rotation du compresseur.

14
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Avoiding Noise*
Avoid running communication wires or sensor input wires
next to AC power wires or the controller’s relay output

quality. Common sources of noise are:
Spark igniters
Radio transmiers
Variable speed drives
Electric motors (> 1hp)
Generators
Relays
Transformers
Other electronic modules
Inducon heaters
Video display devices
Lamp dimmers
Fluorescent lights
Parallel runs with power lines
Large contactors,
(i.e., motor starters)
ARC156 Wiring Specications


acceptable alternatives. Halar®has a higher temperature
rating and a tougher outer jacket than SmokeGard®, and it is
appropriate for use in applications where you are concerned
about abrasion. Halar is also less likely to crack in extremely
low temperatures.
Communications Wiring
ARC156 Specications
Description Single twisted pair, low capacitance (12pF), CL2P, 22 AWG (7x30), TC foam FEP, plenum rated cable
Conductor 22 AWG (7x30) stranded copper (tin plated)
0.030 in. (0.762 mm) O.D.
NOTE: 24 AWG can be used for segments <200 ft. (6.7 m).
Insulation Foamed FEP
0.015 in. (0.381 mm) wall
0.060 in. (1.524 mm) O.D.
Color code Black/white
Twist lay 2 in. (50.8 mm) lay on pair
6 twists/foot (20 twists/meter) nominal
Shielding Aluminum/Mylar shield with 24 AWG (7x32) TC drain wire
Jacket SmokeGard (SmokeGard PVC)
0.021 in. (0.5334 mm) wall
0.175 in. (4.445 mm) O.D.
Halar (ECTFE)
0.010 in. (0.254 mm) wall
0.144 in. (3.6576 mm) O.D.
DC resistance 15.2 Ohms/1000 feet (50 Ohms/km) nominal
Capacitance 12.5 pF/ft (41 pF/meter) nominal conductor to conductor
Characteristic impedance 100 Ohms nominal
Weight 12 lbs./1000 feet (17.9 kg/km)
UL temperature rating SmokeGard
167°F (75°C)
Halar
-40 to 302°F (-40 to 150°C)
Voltage 300 Vac, power limited
Listing UL: NEC CL2P, or better
*NOTES:
• If noise is a problem and you cannot move the wiring, use ferrite
clamp-on chokes on the cabling to improve signal quality.
• 
WARNING/ADVERTISSEMENT

communication wiring, installer must
use:
• ARC-156 communication wire
• single-twisted pair
• shielded with drain
• low capacitance (12.5 pF/ft)
• 22AWG
This conductor must be daisy chained
from the CoolLogic Controller to each
chiller module.
Maximum separation of low voltage
communication and high voltage
power wiring is required.
The communication cable must be
installed in its own conduit. Routing
must enter and exit the low voltage
section of the control box where the
controller is located and should not
be ran parallel to, or any closer than,
6 inches from any high voltage AC or
DC wiring either inside or outside of
the machinery compartment.
(See IOM or contact ClimaCool for

Pour l’installation sur place du
câblage de communication du port 1,
l’installateur doit utiliser:
• le câble de communication ARC-156
• Paire à simple torsion
• blindée avec drain
• faible capacité (12.5 pF/ft)
• 22AWG
Ce conducteur doit être connecté en
guirlande du contrôleur CoolLogic à
chaque module de refroidissement.

conduit. L’acheminement doit entrer
et sortir de la section basse tension
du boîtier de commande où se trouve
le contrôleur et ne peut pas circuler
à moins de 6 à 8 pouces de tout
câblage de tension CA à l’intérieur
ou à l’extérieur du compartiment des
machines.
(Voir l’IOM ou contacter ClimaCool
pour les spécifications complètes.)

15
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Voltage/Phase Monitor Wiring Diagram

16
www.climacoolcorp.com
Strainers – Minimum 60 Mesh Screen Required
ClimaCool chillers utilize brazed plate heat exchangers
which are extremely sensitive to debris. Therefore, it is
mandatory that all condenser and chilled water systems
include a strainer with a minimum of 60 mesh screen for
proper ltration. The strainers must be installed as shown in

at all times while chillers are in operation.
ClimaCool’s warranty does not cover and does not apply to
products which have defects or damages due to freezing
of the water supply, an inadequate or interrupted water
supply, corrosives or abrasives in the water supply, or
improper or inadequate ltration or treatment of the
water supply.
Chiller/Heater System Water Header Bypass
A bypass is required for any chilled water/evaporator, hot
water/condenser (heating load) and source water side
(geothermal, cooling tower or closed circuit cooler) with
variable pumping. The bypass must be piped in such a way


Figures 16 and 17 on page 18. 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






of modules remaining for that duty. For instance with an
SHC OnDemand heat pump system with four (4 ) modules,
if you designate one (1) module for heating bypass and one
(1) module for cooling bypass, the system now only allows
a maximum of three (3) modules for heating or three (3)
modules for cooling. Also, with a module acting as a bypass
increased wear of heat exchangers may be caused by


direct return (Figure 13) and reverse return (Figure 14) on
page 17. The 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 18 –

As with any water system, it is important that the system
be clean. The pipe work installer must remove weld scale,
rust and contamination during pipe work fabrication.


are compatible with 316 stainless steel, prior to making
connections to the ClimaCool chiller. There are certain
necessary components that should always be installed
in both the chilled water and condenser water systems.


be found on page 17. All water piping must be installed in
accordance with applicable codes and standards.
Temperature Sensor and Wells
ClimaCool provides six (6) temperature sensors and wells
with each chiller system programmed by the CoolLogic

36” but no more than 60” away from the bank and before
the strainer, on the source, hot and chilled water inlets

Note: Sensors must be fully inserted into the well to obtain
proper readings and must be 2 ½ pipe diameter minimum
before or after an elbow.
Pressure Dierential Flow Sensor


are not exceeded. To prevent the operation of the chiller


circuits. Place one (1) on each side, downstream of the
strainers on the inlet and outlet of a straight pipe as close
to the module as possible. Do not install in an elbow on the
outlet. Note:
Source, hot and chilled water sides both require sensors of
equal pressure ranges.
Pressure Taps
The installing contractor must provide access ports

sensors and pressure gauges for both the condenser and
chilled water systems. A ¼” pressure tap is required on the
inlet and the outlet of both water systems for a total of



Water Piping

17
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Figure 13 - Direct Return
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
No. 25 Grooved Branch
6 x 6 x 2
Module
Header
6"
GroovedCoupling
No. 29 Reducing Tee
w/Thd. Branch
6 x 6 x 2
Module
Header
6"
GroovedCoupling
SIDEVIEW
2" Belimo
Ball Valve &
Actuator
Hose Kit
2"
Grooved
Coupling
Figure 14 - 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
SIDEVIEW
6"
GroovedCoupling
6"
GroovedCoupling
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

The design piping must accommodate one module’s worth


mode. See Figures 16 and 17 on page 18 - Water Piping
The eld supplied piped chiller/heater system
bypass must be controlled by others. There are system

strictly prohibit the use of ClimaCool sensors and controls



evaporator, hot water/condenser and source water systems.
Water Piping
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 15 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 design

rates). A minimum of (6) six gallons per nominal system 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.
Figure 15 - Typical Load Bypass Valve Arrangement
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
MINIMUM BANK FLOW
TYPICAL CHILLED AND HOT WATER
LOAD SIDE BYPASS VALVES
SIZE EQUIVALENT TO
MINIMUM BANK FLOW

18
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Water Piping Conguration
Notes:
1. Figures 16 and 17 are required piping for proper water regulation and distribution through ClimaCool modular chillers.
2. 


3. 

4. 
5. For source, hot and chilled water inlet/outlet location dimensions, refer to pages 4-5 Dimension Data Drawings.
6. 
on all water loops. Install the DP Sensor between the strainer and the entering side of the chiller as well as before

their own DP for VFD/ pump control.
7. 
of start-up for valid warranty commencement. Installing dual strainers per water loop avoids bank shut down & is
recommended for better redundancy.
8. 
in one bank is 1,100 gpm.
9. 
2,400 gpm.
10. Bypass header kits are provided & controlled for each water loop for all applications with motorized valves/ VPF
(Variable Flow). System bypasses are provided & controlled by others.
11. Header bypass valve may be installed at either end of bank.
12. For over seven (7) modules, two (2) CoolLogic panels are required. Please consult the factory.
Figure 16 - Field Piping Direct Return
Figure 17 - Field Piping Reverse Return