ONE GENESIS (MODEL GW) HOT WATER SUPPLY BOILER WITH VERTICAL TANK
PRESSURE RELIEF VALVE RATING SHOULD NOT EXCEED PRESSURE CAPACITY OF ANY COMPONENT IN THE SYSTEM. PIPING SHOULD CONFORM TO LOCAL CODES.
BALL VALVES ARE SHOWN FOR SERVICING BOILER. HOWEVER, LOCAL CODES SHALL GOVERN THEIR USAGE.
IMPORTANT
WATER FLOW SWITCH PROTECTS THE BOILER IN CASE OF WATER SERVICE INTERRUPTION OR CIRCULATOR FAILURE.
•PIPE TO OPEN DRAIN
XFACTORY INSTALLED ON UNIT == SUPPLIED WITH UNIT
=
DANGER
TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE
TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE
CONTROL WARNING ON PAGE 26. IF HIGHER PREHEAT TEM-
PERATURES ARE NECESSARY TO OBTAIN ADEQUATE
BOOSTER OUTPUT, ADD AN
WATER SUPPLIED TO FIXTURES.
INSTALL THERMAL EXPANSION TANK ON COLD WATER SUPPLY LINE, IF CHECK VALVE OR PRESSURE REDUCING VALVE IS USED IN SUPPLY.
| MINIMUM |
MODELS | PIPE SIZE |
| INCHES |
| |
THRU | 2 1/2" |
2500 | NPT |
|
|
FACTORY PUMP SIZING BASED
ON 50 EQUIVALENT FEET
(15.2 m) OF PIPE.
TWO TEMPERATURE WATER MIXING VALVE APPLICATION
Figure 13. Single boiler with vertical tank.
CIRCULATING RETURN
LINE CONNECTIONS
•TEMPERED WATER LOOP, IF USED, CONNECT TO POINT R.
•STORED TEMPERATURE WATER LOOP, IF USED, CONNECT TO ANY OPENING NEAR BOTTOM OF TANK.
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