Yazaki Aroace WFC-SC30 User Manual

WATER-FIRED SINGLE-EFFECT
ABSORPTION CHILLER
This product is a water-fired single-effect absorption unit which provides chilled
water for cooling in central plant type air conditioning systems. WFC-SH model chiller-
heaters also provide hot water for heating in two-pipe central plant type systems. Units
with nominal refrigeration capacities of 10, 20, 30, and 50 tons are complete with
operating and safety controls. The absorption chiller or chiller-heater is energized by a
heat medium (hot water) from a process, cogeneration, solar, or waste heat source
capable of providing a temperature range of 158 – 203°F (70 – 95°C).
CONTENTS
GENERAL Page
 GENERAL 2
 MODEL DESIGNATION 2
 ACCESSORIES 2
 STANDARD SPECIFICATIONS 3
 CONTROL ADJUSTMENTS 4
 EQUIPMENT DIMENSIONS 5
 TYPICAL SYSTEM DESIGN 7
 WIRING DIAGRAMS 8
INSTALLATION
 RIGGING AND MOVING 11
 LOCATION AND CLEARANCES 13
 FOUNDATION 13
 LEVELING 14
 PIPING 14
Page
 CHILLED/HOT WATER PIPING 15
 COOLING WATER PIPING 15
 HEAT MEDIUM PIPING 16
 FREEZE PROTECTION 16
 ELECTRICAL 17
 HIGH VOLTAGE CONNECTIONS 18
 CONTROLLING PUMPS AND
VALVES 18
 COOLING TOWER FAN CONTROL 19
 PUMP SAFETY INTERLOCKS 19
 BUILDING MANAGEMENT
SYSTEM INTERFACE 20
 REMOTE MONITORING 20
 WATER QUALITY 22
 INSTALLATION CHECK &
REQUEST FOR STARTUP 22
INSTALLATION INSTRUCTIONS
WFC-SC10, 20, 30, 50
WFC-SH10, 20, 30

Yazaki Aroace WFC-SC30 Specifications

General

Brand	Yazaki
Model	Aroace WFC-SC30
Category	Chiller
Language	English

Summary

GENERAL

MODEL DESIGNATION

Defines the model naming convention for Yazaki absorption chillers.

ACCESSORIES

Lists standard and optional accessories provided with the chiller/chiller-heater.

STANDARD SPECIFICATIONS

EQUIPMENT DIMENSIONS

TYPICAL SYSTEM DESIGN

WIRING DIAGRAMS

TERMINALS

STANDARD JUNCTION BOX CONNECTIONS

Describes standard connections for junction box terminals on the unit.

SOLUTION PUMP OVERLOAD SETTINGS

Specifies overload settings for the solution pump across different models.

FUSE RATING

Lists fuse ratings required for replacement in the chiller unit.

OPTIONAL CONTROL BOX CONNECTIONS

INSTALLATION

RIGGING AND MOVING

Provides guidelines for safely rigging and moving the absorption chiller unit.

LOCATION AND CLEARANCES

FOUNDATION

LEVELING

PIPING

CHILLED/HOT WATER PIPING

FLOW SWITCH

COOLING WATER PIPING

HEAT MEDIUM PIPING

FREEZE PROTECTION

ELECTRICAL

HIGH VOLTAGE CONNECTIONS

Details the procedure for making high voltage wiring connections.

CONTROLLING PUMPS AND VALVES

COOLING TOWER FAN CONTROL

PUMP SAFETY INTERLOCKS

BUILDING MANAGEMENT SYSTEMS

REMOTE MONITORING

WATER QUALITY

INSTALLATION CHECK & REQUEST FOR STARTUP