Nyle C25W - Page 44

44
37
4. See Closed Systems and Thermal Expansion on page 13 5. See Water Connections on page 17. 6. If a building recirculation loop is present the circulation pump must be controlled by a
thermostat.
WATER PIPING DIAGRAMS Before installation of water piping review the following: 1. See Mixing Valves on page 13.
2. See Water Temperature on page 10.
3. See Temperature - Pressure Relief Valve on page 14.
43
FINISHED FLOOR
SUPPLY
HOT OUTLET
TO FIXTURES OR
INLET OF BACKUP
WATER HEATER
EXPANSION TANK
BUILDING RECIRCULATION LOOP RETURN
COLD WATER SUPPLY
LINE THERMOSTAT
NOTE: CONNECT BUILDING RECIRC RETURN TO INLET OF BACKUP WATER HEATER
WHEN PRESENT
TANK THERMOSTAT
PIPE T&P TO
OPEN DRAIN
RETURN
WATER
(INLET)
PURGE
VALVE
SUPPLY
WATER
(OUTLET)
STORAGE
TANK
FIELD SUPPLIED PUMP
FOR HPWH MODELS
WITHOUT FACTORY PUMP
HPWHHPWH
DRAIN &
FLUSH
VALVES
FLUSH
VALVES
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES FOR ADDITIONAL REQUIREMENTS.
TWO HEAT PUMPS, SINGLE TEMPERATURE WITH
VERTICAL STORAGE TANK WITH FORCED BUILDING RECIRCULATION
LEGEND
TEMPERATURE & PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP
DRAIN
WYE STRAINER
FULL PORT BALL VALVE TEMPERATURE GAGE CHECK VALVE
TANK OR LINE TEMPERATURE CONTROL