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