Rheos boiler and water heater page 17 – LAARS Rheos RHCV - Install and Operating Manual User Manual
Page 17
Rheos Boiler and Water Heater
Page 17
CAUTION: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND VALVING CHECK
WITH LOCAL CODES AND ORDINANCES FOR
ADDITIONAL REQUIREMENTS
THERMOMETER
GLOBE VALVE
CHECK VALVE
PRESSURE REDUCING VALVE
W/ FAST FILL BYPASS
EXPANSION TANK
WITH AIR SCOOP AND
AUTO AIR VENT
PUMP
LEGEND
VALVE
TEMPERATURE
SENSOR
3-WAY VALVE
PRV
TPRV
6. THIS DRAWING DEPICTS A TWO-PASS HEAT EXCHANGER.
30' TOTAL, 6-90° ELBOWS , FULL PIPE SIZE.
5. WHEN USING OPTIONAL FACTORY MOUNTED PUMP, MAX PIPE LENGTH
4. THERMAL EXPANSION TANK MAY BE REQUIRED CHECK LOCAL CODES.
3. BACK FLOW PREVENTER MAY BE REQUIRED CHECK LOCAL CODES.
WELL IN LOWER 1/3 OF TANK WITH HEAT SENCEING COMPOUND.
2. WHEN USING INTERMITTENT PUMP AND EM LOCATE REMOTE AQUASTAT
1. OPTIONAL CWMU & RECIRC. LINE LOCATION.
7. COMMON PIPING MUST BE SIZED FOR MAXIMUM COMBINED HEATER FLOW.
8. CAUTION: PUMP SIZING MUST BE BASED UPON WATER HARDNESS AT JOB SITE
NOTES:
2
5
SUPPL
Y
CIRC.
RETURN
2
2
3
CWMU
4
1
5
7
7
WATER CATEGORY GRAIN
HARDNESS PER GALLON
S = SOFT
1 THROUGH 7.5
N = NORMAL 7.6 THROUGH 17
H = HARD
OVER 18
17.1 PARTS PER MILLION
= 1 GRAIN HARDNESS PER GALLON
KEY:
CAUTION: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND VALVING CHECK
WITH LOCAL CODES AND ORDINANCES FOR
ADDITIONAL REQUIREMENTS
THERMOMETER
GLOBE VALVE
CHECK VALVE
PRESSURE REDUCING VALVE
W/ FAST FILL BYPASS
EXPANSION TANK
WITH AIR SCOOP AND
AUTO AIR VENT
PUMP
LEGEND
VALVE
TEMPERATURE
SENSOR
3-WAY VALVE
PRV
TPRV
6. THIS DRAWING DEPICTS A TWO-PASS HEAT EXCHANGER.
30' TOTAL, 6-90° ELBOWS , FULL PIPE SIZE.
5. WHEN USING OPTIONAL FACTORY MOUNTED PUMP, MAX PIPE LENGTH
4. THERMAL EXPANSION TANK MAY BE REQUIRED CHECK LOCAL CODES.
3. BACK FLOW PREVENTER MAY BE REQUIRED CHECK LOCAL CODES.
WELL IN LOWER 1/3 OF TANK WITH HEAT SENCEING COMPOUND.
2. WHEN USING INTERMITTENT PUMP AND EM
1. OPTIONAL CWMU & RECIRC. LINE LOCATION.
7. CAUTION: PUMP SIZING MUST BE BASED UPON WATER HARDNESS AT JOB SITE
NOTES:
2
5
1
2
CIRC.
RETURN
2
CWMU
SUPPL
Y
3
4
WATER CATEGORY GRAIN
HARDNESS PER GALLON
S = SOFT
1 THROUGH 7.5
N = NORMAL 7.6 THROUGH 17
H = HARD
OVER 18
17.1 PARTS PER MILLION
= 1 GRAIN HARDNESS PER GALLON
KEY:
Figure 11. Water Heater Piping — One Heater, Multiple Tanks.
Figure 12. Water Heater Piping — Multiple Heaters, Multiple Tanks.