ClimaCool SHC onDEMAND Series User Manual

65 pages

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Water Cooled Ulmate Chiller Soluon

Simultaneous Heang and Cooling

Heat Pump and Heat Recovery

Model SHC onDEMAND 30, 50, 70, 85

Installaon, Operaon & Maintenance

Patent Pending

DEMAND

IMULTANEOUS HEATING AND COOLING

95B0059N01

DEMAND

SIMULTANEOUS HEATING AND COOLING

95B0059N01

• •

Questions and Answers:

C
Cindy MartinezAug 4, 2025
Why ClimaCool SHC onDEMAND Heat Pump chiller will not start?
- K
  Kyle ThomasAug 4, 2025
  Several factors can prevent your ClimaCool Heat Pump chiller from starting. It could be due to the power being off; in this case, check the main disconnect switch. Alternatively, the main line might be open, so inspect the main fuses. Incorrect wiring or loose terminal connections could also be the culprit; refer to the wiring diagram and tighten the terminal connections. A control circuit could be open, requiring a check of interlocks with auxiliary equipment and pressure/temperature controls. Finally, improper phasing of the main power could be the issue, which can be resolved by changing any two of the three phases of the main power.

ClimaCool SHC onDEMAND Series Specifications

General

Brand	ClimaCool
Model	SHC onDEMAND Series
Category	Heat Pump
Language	English

Summary

Introduction

Safety

Details critical safety warnings and precautions for operation and maintenance of the chiller.

Physical Data

Model UCH Module and Compressor

Technical specifications for the module and compressor components.

Model UCH Condenser

Technical specifications related to the condenser unit.

Model UCH Evaporator

Technical specifications related to the evaporator unit.

Recommended Service Clearances

Service Clearances SHC - Heat Pump

Service Clearances SHC - Heat Recovery

UCH Simultaneous Model Key

Simultaneous Heating and Cooling Chiller System Model Key

Explanation of the model key for simultaneous heating and cooling chiller systems.

Unit Installation

Service Access

Assembling Modules

Grooved Couplings Installation

Electrical Connections

CoolLogic Control System Wiring

Electrical Phase Sequencing

Water Piping

Strainers – Minimum 60 Mesh Screen Required

Filling the Water System

Filling, Purging and Leak Testing the System

Recommended procedure for filling, purging, and leak testing the water system.

Cleaning the System

Starting the Pumps

Water Temperature Requirements

Load Loops

Specifies minimum and maximum water temperatures for load loops.

Source Loop

Specifies minimum and maximum water temperatures for source loops.

Condenser and Evaporator Water Pressure Drop Charts

Condenser Water Pressure Drop

Charts showing pressure drop for condenser water flow rates.

Evaporator Water Pressure Drop

Charts showing pressure drop for evaporator water flow rates.

Glycol Performance Adjustment Factors Charts

Performance Adjustment Multipliers

Adjustment multipliers for system capacity and compressor power with glycol.

Pressure Drop Adjustment Multipliers for Propylene Glycol

Adjustment multipliers for pressure drop with propylene glycol.

Performance Adjustment Multipliers (Ethylene Glycol)

Adjustment multipliers for system capacity and compressor power with ethylene glycol.

Pressure Drop Adjustment Multipliers for Ethylene Glycol

Adjustment multipliers for pressure drop with ethylene glycol.

Glycol Performance Adjustment Factors Charts (Continuation)

Glycol Solution Freezing Point

Chart showing the freezing point of glycol solutions based on concentration.

Performance Adjustment vs. Chiller Temp. Drop

Chart showing performance adjustments based on chiller temperature drop.

Pre-Startup

Electrical

Essential electrical checks to perform before chiller startup.

Refrigeration

Checks required for the refrigeration system prior to startup.

Water System

Checks required for the water system prior to chiller startup.

Pre Startup Checklist* (SHC onDEMAND)

Checklist Items

A comprehensive checklist of items to verify before chiller startup.

Startup

Review Pre Startup Checklist

Ensuring all items from the pre-startup checklist are complete.

Verify Connections

Confirming all electrical terminal connections are tight.

Verify Location and Wiring

Checking sensor locations and wiring to the master control panel.

Verify Water Differential Pressure Sensors

Confirming proper installation and wiring of water differential pressure sensors.

Verify Strainer Assemblies

Ensuring all header inlets have strainer assemblies with 60 mesh screens.

Inspect Refrigerant Piping

Verify Phase Loss Monitor

Verify Motorized Valve Settings

Confirm Main Water Pumps

Confirm Jumper Locations

Verify Communication Cable Wiring

Power Up Master Control Panel

Power Up Module Control Panel

Refrigerant Gauge Set

Bump Start Compressors

Procedure for bump starting compressors to check rotation and pressure.

Startup (Continuation)

Verify Communications

Verifying proper communications between modules and the master controller.

Set Master Controller Parameters

Setting master controller parameters according to job submittal sheets.

Set BAS Interface Parameters

Adjusting Unit Charge and Thermal Expansion Valves Using Subcooling and Superheat Method

Verify Proper Subcooling

Procedure for verifying and adjusting subcooling for optimal performance.

Verify Proper Superheat

Procedure for verifying and adjusting superheat for optimal performance.

Subcooling & Superheat Flow Chart

Startup and Warranty Registration Form (SHC onDEMAND®)

Chiller Operation and Maintenance

Pressure and Temperature Log

Heat Exchangers

Back Washing

Chemical Clean In Place Washing With Water Isolation Valves

Operational Limitations

Voltage Limitations

Absolute voltage limitations to prevent compressor damage.

Water Flow Data

Table of minimum and maximum allowable water flow rates.

Compressor Operating Limitations

Operating limits for compressor pressure, temperature, and superheat.

Compressor Information

Compressor Rotation

Compressor Lubrication

Oil Levels

Adding Oil

Refrigeration Circuit Diagram - SHC Heat Recovery

Refrigeration Circuit Diagram - SHC Heat Pump

Refrigeration System Re-Processing

Refrigerant System Reprocessing

Steps for reprocessing the refrigerant system after repairs.

Evacuating the System

Procedure for evacuating the refrigeration system to remove moisture.

Recharging the System

Procedure for recharging the refrigeration system with refrigerant.

Options and Accessories

Pressure Differential Flow Sensor

Automatic CS Series Strainer Package

Stainless Steel Strainer Option

Safety Considerations

Strainer Installation Recommendations

Strainer Operation

Strainer Element Cleaning

Automatic Timer Flush (ATF) Package Option

Operation Instructions

To Program the ATF Controller

Pressure Differential Alarm Package Option

Electrical Data UCH

Power Wiring - per Module

Electrical data for module power wiring, including circuit sizes.

Internal Wiring - per Compressor

Electrical data for internal wiring per compressor.

Power Distribution Drawing

ARC156 Wiring

Wiring Diagrams - SHConDEMAND, Heat Pump 30, 50 and 70 Ton

Wiring Diagrams - SHConDEMAND, Heat Pump 85 Ton

Wiring Diagrams - SHConDEMAND, Heat Recovery 30, 50 and 70 Ton

Wiring Diagrams - SHConDEMAND, Heat Recovery 85 Ton

Master Control Panel Wiring Diagrams

Electrical Panel Component Layout

Layout of electrical panel components for the master control panel.

Wiring Details and Connections

Detailed wiring connections and diagrams for the master control panel.

Terminal Block Configurations

Configuration details for terminal blocks on the master control panel.

Expansion Board Wiring Diagrams - SHC Heat Pump

Expansion PCB Input Jumper Configuration

Configuration settings for expansion PCB input jumpers.

Troubleshooting Guide

Chiller Will Not Start

Troubleshooting steps when the chiller fails to start.

Compressor Hums But Does Not Start

Troubleshooting steps when the compressor hums but does not start.

Compressor Runs But Does Not Cool

Troubleshooting steps when the compressor runs but does not cool.

Compressor Cuts Out On Low Pressure Safety Control

Troubleshooting steps when the compressor cuts out on low pressure safety.

Compressor Cycle On High Pressure Control

Troubleshooting steps when the compressor cycles on high pressure control.

Causes and Prevention of Freeze-Ups

Identifying causes and preventing freeze-ups in the system.