LAARS Pennant PNCV - Install and Operating Manual - Manual (Page 15)

Low Temperature Pennant Page 15
Figure 4. Suggested Piping - Hydronic Boiler.
THERMOMETER
SENSOR
TEMPERATURE
GLOBE VALVE
CHECK VALVE
LEGEND
W/ FAST FILL BYPASS
PRESSURE REDUCING VALVE
WITH AIR SCOOP AND
AUTO AIR VENT
EXPANSION TANK
3-WAY VALVE
Cold Water
Make-Up
VALVE
VALVE
PURGE
PUMP
ADDITIONAL REQUIREMENTS.
WITH LOCAL CODES AND ORDINANCES FOR
PIPING CONFIGURATION AND VALVING, CHECK
WARNING: THIS DRAWING SHOWS SUGGESTED
Pump
System
Supply
System
System
Return
C
INSTALL AIR VENTS AT HIGH POINTS IN SYSTEM.
PIPING & SIZING OF EXPANSION TANK
PER TANK MANUFACTURER'S INSTRUCTIONS.
PRIMARY/SECONDARY MANDATORY FOR ALL
VARIABLE FLOW SYSTEMS.
BOILER WATER CONNECTIONS (INLET/OUTLET)
MAY VARY. VERIFY CONNECTION ORIENTATION.
BOILER CIRCUIT PIPING MUST BE EQUAL
BOILER WATER CONNECTION SIZE.
DIMENSION "C" TO BE 4 PIPE DIAMETERS.
DOTTED DEVICES INDICATE ALTERNATE
LOCATIONS.
TEMPERATURE SENSORS REQUIRE FIELD
INTERLOCK TO BOILER CONTROLS.
COMBINED FLOW OF ALL BOILERS.
COMMON PIPING MUST BE SIZED FOR
BOILER CIRC. PUMP SIZED FOR FLOW
THROUGH BOILER
FULL-SIZED PIPING.
AND 30 FEET OF
MINIMUM INLET WATER TEMP = 70°F
3-Way Valve
Mounted on Pennant
Pump Mounted
on Pennant
C
Figure 5. Hydronic Piping — One Boiler, Multi-Temperature System.
THERMOMETER
SENSOR
TEMPERATURE
GLOBE VALVE
CHECK VALVE
W/ FAST FILL BYPASS
PRESSURE REDUCING VALVE
WITH AIR SCOOP AND
AUTO AIR VENT
EXPANSION TANK
3-WAY VALVE
VALVE
VALVE
PURGE
PUMP
ADDITIONAL REQUIREMENTS.
WITH LOCAL CODES AND ORDINANCES FOR
PIPING CONFIGURATION AND VALVING, CHECK
WARNING: THIS DRAWING SHOWS SUGGESTED
INSTALL AIR VENTS AT HIGH POINTS IN SYSTEM.
PIPING & SIZING OF EXPANSION TANK
PER TANK MANUFACTURER'S INSTRUCTIONS.
PRIMARY/SECONDARY MANDATORY FOR ALL
VARIABLE FLOW SYSTEMS.
BOILER WATER CONNECTIONS (INLET/OUTLET)
MAY VARY. VERIFY CONNECTION ORIENTATION.
BOILER CIRCUIT PIPING MUST BE EQUAL
BOILER WATER CONNECTION SIZE.
DIMENSION "C" TO BE 4 PIPE DIAMETERS.
DOTTED DEVICES INDICATE ALTERNATE
LOCATIONS.
TEMPERATURE SENSORS REQUIRE FIELD
INTERLOCK TO BOILER CONTROLS.
COMBINED FLOW OF ALL BOILERS.
COMMON PIPING MUST BE SIZED FOR
BOILER CIRC. PUMP SIZED FOR FLOW THROUGH
BOILER AND 30 FEET OF FULL-SIZED PIPING.
MINIMUM INLET WATER TEMP = 70°F
LEGEND
Cold Water
Make-Up
Pump
System
Supply
System
System
Return
C
3-Way Valve
Mounted on Pennant
Pump Mounted
on Pennant