INS
TALLA
TION
38
On-Demand Water Heater Installation Manual and Owner’s Guide
INSTALLATION
Step 12:
Water connections
BUILDING RETURN
EXPANSION
TANK
COLD
WATER
SUPPLY
GAS
HOT WATER
TO FIXTURES
HOT
COLD
RETURN
STANDARD
RECIRCULATION
MULTIPLE UNIT
PIPING CONFIGURATION
(X3
™
CARTRIDGE NOT
SHOWN FOR CLARITY)
EXPANSION
TANK
COLD
WATER
SUPPLY
GAS
HOT WATER
TO FIXTURES
STANDARD NON-RECIRCULATION
SINGLE UNIT
PIPING CONFIGURATION
HOT
COLD
SIDE VIEW
(X3
™
CARTRIDGE
NOT SHOWN
FOR CLARITY)
•
Check valves must be installed on both of the cold water line and return line
.
Please refer to
the diagram below.
•
Check valves aren't necessary for the crossover install.
•
Insulate the hot water supply line and dedicated return line to prevent heat loss.
•
The recirculation flow rate should not exceed 4.2 gpm (16 L/min.)
NOTICE
-Standard recirculation-
-Standard non - recirculation-
LEGEND
TEMPERATURE &
PRESSURE RELIEF
VALVE
PRESSURE RELIEF
VALVE
CIRCULATION PUMP
TEMPERATURE
CONTROL PROBE
DRAIN
BALL VALVE
CHECK VALVE
TEMPERATURE
GAUGE
WATER FLOW
SWITCH
COLD
HOT
BUILDING
RETURN
GAS
CAPPED LINE
EXPANSION
TANK
COLD
WATER
SUPPLY
GAS
HOT WATER
TO FIXTURES
STANDARD RECIRCULATION
SINGLE UNIT
PIPING CONFIGURATION
BUILDING
RETURN
SIDE VIEW
(X3
™
CARTRIDGE
NOT SHOWN
FOR CLARITY)
HOT
COLD
RETURN
Содержание 160X3P
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