Page 1: Table Of Contents
CH-K100 INSTALLATION INSTRUCTIONS GAS-FIRED DOUBLE-EFFECT ABSORPTION CHILLER-HEATER This product is a gas-fired double-effect absorption unit which provides chilled water for cooling or hot water for heating in central plant-type air conditioning systems. This unit has a nominal refrigeration capacity of 100 tons and is complete with operating and safety controls. CONTENTS GENERAL Page...
Page 2: General
AT 0.5 PSI OR GREATER IN ORDER TO warranty to be in force. Further, maintenance AVOID DAMAGE TO THE GAS VALVES. records should be kept with copies sent to Yazaki Energy Systems, Inc., in order to maintain 4. DO ATTEMPT START warranty coverage.
Page 3: Standard Specifications
STANDARD SPECIFICATIONS Model CH-K100 High Fire MBTUh 1200 (kW) (352 Cooling Low Fire MBTUh (kW) (246) High Fire MBTUh (kW) (286) Heating Low Fire MBTUh (kW) (200) Capacity Control High Fire (100%) - Low Fire (70%) - Off (0%) Inlet °F 54.5 (°C)
Page 4: Factory Options
FACTORY OPTIONS • FS2 Cooling Water Circuit Flow Switch • Reinforcement for Horizontal Rigging (No Horizontal Transport!) • WTI Sensor ACCESSORIES Standard (UL Model Only) Optional Accessories ACT3 Maintenance Checker Gas Appliance Regulator (shipped in control box) Gas Meter Eye Bolts (4) LON Adapter Kit Installation Instructions Metric Flare Adapters...
Page 5: Equipment Dimensions
EQUIPMENT DIMENSIONS (Drawings Not to Scale)
Page 6: Typical System Design
TYPICAL SYSTEM DESIGN INTERNAL WIRING DIAGRAMS Burner Diagram...
Page 8 SYMBOL DESCRIPTION REMARKS SYMBOL DESCRIPTION REMARKS Bussman Model Field-Installed 24V Control Circuit Fuse GLQ-3, GMQ-3, or Remote Control Panel Optional A thru I GMQ-3-2/10 Connection Terminals Remote-Control Fuji Model FGAO- Panel Accessory 32V Control Circuit Fuse 1; 250v, 1 Amp AC24V 24V Power Source Fuji Model FGAO-...
Page 9: Capacity Control
SYMBOL DESCRIPTION REMARKS SYMBOL DESCRIPTION REMARKS LCOM Common for LED’s SV2 & SV22 Control Relay 24V Coil Expansion Tank / Cistern SV9 & SV92 Control Relay 24V Coil Not Used Level Switch MOV Surge Protector Evaporator Thermister MOV Surge Protector Refrigerant Proportional Solution Pump LTPV...
Page 10: Typical Field Wiring Diagram
TYPICAL FIELD WIRING DIAGRAM...
Page 11: Installation
Report any damage to the carrier and note on the bill of lading. Do not proceed with the installation until notifying the Yazaki Sales Representative or Distributor and completing any required remedial actions. Remember to properly plan the route to the...
Page 12: Location
LOCATION Particular care must be taken when placing the machine so as to provide adequate clearance for access to each side of the machine. Maintenance is mostly done through the front of the unit, but in repair scenario, any panel on any side may need to be removed to access components behind them.
Page 13: Leveling
Follow code requirements in all such cases. Yazaki chiller-heaters are designed to use L- anchor plates to secure them to their respective foundations. These anchor plates are included in the accessories box with each K-Series chiller-heater.
Page 14: Combustion Air Supply
The rules for such are found in the National Fuel Gas Code, NFPA Standard 54. The code supersedes anything found in print here or in any other Yazaki documentation. Provided here are guidelines to help toward proper installation of the equipment.
Page 15: Venting
Yazaki offers no kit for this. Warranty may be Regardless of installation indoor or void on the Yazaki chiller-heater if such a kit is outdoor, if the draft pressure is outside of this used, but not installed or applied correctly.
Page 16: Piping
Yazaki chiller-heater. 2. Do not install any valves in expansion pipe Piping rules and conventions used with line. Yazaki chiller-heaters are exactly the same as used with any other type of chiller; therefore, this Thermo-wells, pressure gauges, Pete’s...
Page 17: Chilled/Hot Water Piping
CHILLED/HOT WATER PIPING A balance valve should be installed at the chilled/hot water outlet and a stop valve should be installed at the chilled/hot water inlet. Both valves should be placed in close proximity to the chiller-heater. After thoroughly testing for leaks, insulate the piping circuit, ensuring an adequate vapor barrier is obtained.
Page 18: Freeze Protection
USA is the use of glycol when glycol used. higher in the fluid loop. concentrations, the impact can be very significant. Glycol may be permitted for use in Yazaki chiller-heaters with certain restrictions 6. Propylene Glycol is preferred wherever observations. possible.
Page 19: Gas Supply Piping
GAS SUPPLY PIPING Before connecting the gas supply pipe, check multiple gas-fired appliances exist on the supply the UNIT NAMEPLATE to confirm that it is lines. This optional gas meter allows for gas compatible with the gas type available. volume determination without the need to isolate other appliances during burner setup.
Page 20: Electrical
CM1. The unit will take that voltage and section of the junction box are intended for use route it to terminal P when there is a chilled/hot with the optional Yazaki Remote Control Panel. water pump demand. It will take that same...
Page 21 Finally, in the lower right section of the When interfacing with BMS, junction box lies a terminal strip with terminals 3, recommended that two SPST relays be used and 4, 5, 6, and CM2. Terminal CM2 supplies a DC controlled by the BMS. Each relay should have voltage signal that MUST return to terminals 3, 4, the E terminal (which supplies a DC voltage and 5.
Page 22: Water Quality
INSTALLATION CHECK & REQUEST FOR STARTUP After the absorption chiller-heater has been Yazaki Energy Systems, Inc., at least 2 weeks installed, piped, and wired as described in these prior to the required startup date. instructions, but before any attempt is made to...
Page 23 YAZAKI CH-K SERIES CHILLER-HEATER INSTALLATION CHECK AND REQUEST FOR START-UP Yazaki Service Provider: Address: Project Name: Project Address: Model No: Serial No: Anticipated Startup Date: A. CHILLER-HEATER 5. Gas pipe leak tested and purged □ 1. Unit placed on foundation □...
Page 24 This symbol on the product’s nameplate means it is listed by UNDERWRITERS LABORATORIES, INC. Yazaki Corporation and Yazaki Energy Systems, Inc. reserve the right to discontinue, or change products, specifications, and/or designs at any time without notice and without incurring obligations.

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