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Typical piping applications (cont.):

Figure 8

_Primary/Secondary Piping of a Single Boiler - 2 1/2" Valve

Figure 9

_Primary/Secondary Piping of Multiple Boilers - 2 1/2" Valve for each boiler

DETAIL

DET

AIL

Note: 

Valve 

must 

be installed

with proper port orientation. Failure to
observe port markings on the valve
body prior to installing the valve could
result in damage to the unit.

NOTES:

 

1)  Unit(s) high limit must be set at max.

 

 

 

2)  Inlet and outlet connections to the boiler are shown for reference only.  Actual connections may vary

 

 

 

 

from those represented here.  Consult the Installation and Service Manual for actual locations.

 

 

 

3)  Unit(s) pump should operate only during firing periods.

NOT

 TO

 EXCEED 4 PIPE DIA.

OR 

A MAX. OF 12” 

AP

AR

T

C =  SYSTEM
 RETURN
 WATER

B =  FROM
 BOILER
 OUTLET

A =  BLENDED
 WATER

NOTES:

 

1)  Unit(s) high limit must be set at max.

 

 

 

2)  Inlet and outlet connections to the boiler are shown for reference only.  Actual connections may vary

 

 

 

 

from those represented here.  Consult the Installation and Service Manual for actual locations.

 

 

 

3)  Unit(s) pump should operate only during firing periods.

NOT

 TO

 EXCEED 4 PIPE DIA.

OR 

A MAX. OF 12” 

AP

AR

T

4 of 8

INS7238 Rev C

Summary of Contents for BLT2026

Page 1: ...2118 Bolt 12 BLT2119 Nut 12 BLT2026 Flat Washer 24 BLT2120 Star Washer 12 GKT2055 Gasket 3 TFL2092 Flange 3 INS7238 Instruction Sheet CAUTION Pump and motor unit are designed to be supported by the in...

Page 2: ...st be set at max 2 Inlet and outlet connections to the boiler are shown for reference only Actual connections may vary from those represented here Consult the Installation and Service Manual for actua...

Page 3: ...from those represented here Consult the Installation and Service Manual for actual locations 3 Unit s pump should operate only during firing periods Best practice for Indoor Outdoor reset Best practic...

Page 4: ...n for reference only Actual connections may vary from those represented here Consult the Installation and Service Manual for actual locations 3 Unit s pump should operate only during firing periods NO...

Page 5: ...11_2 LTV Valve Up to 750 000 Btu hr Figure 12_2 1 2 LTV Valve 990 000 Btu hr and up Figure 10_1 1 2 LTV Valve 45 000 500 000 Btu hr PORT A PORT B PORT C 6 125 3 750 5 250 A B C SIDE TOP 5 of 8 INS7238...

Page 6: ...gular cleaning or calibration In most installations the 1 1 2 and 2 valves are hard piped into place and do not afford access The 2 1 2 valve has flanged connects which allows removal If the valve bec...

Page 7: ...7 of 8 INS7238 Rev C Notes...

Page 8: ...A INS7238 Rev A reflects the addition of the 1 1 2 valve Revision B INS7238 Rev B reflects the addition of the maintenance instructions Revision C ECO C02335 reflects the revision of FIG s 1 2 3 4 6 8...

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