Page 25
FIGURE 26
REFRIGERANT ROUTING - COOLING OPERATION
3, 5, AND 10 TON UNITS
WATER
IN
WATER TO
REFRIGERANT COIL*
WATER
OUT
STRAINER*
COMPRESSOR
AUTOMATIC
FLOW
REGULATOR
TO INDOOR
COIL
FROM INDOOR
COIL
FILTER / DRIER
REVERSING
VALVE
CHARGE
COMPENSATOR
EXPANSION
VALVE
REFRIGERANT
WATER
WATER TO
REFRIGERANT COIL
CROSS SECTION
THREE-WAY
VALVES*
WATER
REFRIGERANT
WATER FLOW
CONTROL VALVE
(ON/OFF)
BYPASS
CIRCUIT
*10-ton units only: one in each unit; other
components are one in each circuit.
FIGURE 27
REFRIGERANT ROUTING - COOLING OPERATION
20 TON UNITS
WATER
IN
WATER TO
REFRIGERANT COIL*
WATER
OUT
STRAINER*
COMPRESSOR
AUTOMATIC
FLOW
REGULATOR
TO INDOOR
COIL
FROM INDOOR
COIL
FILTER / DRIER
REVERSING
VALVE
CHARGE
COMPENSATOR
EXPANSION
VALVE
REFRIGERANT
WATER
WATER TO
REFRIGERANT COIL
CROSS SECTION
THREE-WAY
VALVES*
WATER
REFRIGERANT
WATER FLOW
CONTROL VALVE
(ON/OFF)
BYPASS
CIRCUIT
*One in each unit; other compo
nents are one in each circuit.