82
A7. Indirect
Application Only with RTC – NO Building Heat (MECHANICAL)
NOTES:
1)
Install the boiler as indicated above for systems where the boiler return temperatures may be less than 135F and heating DHW with an indirect water heater or heat exchanger
.
2)
The boiler circulator must be sized using the sizing charts found in
Appendix B.
3)
The return sensor
, S1, shall be installed at the return of the boiler
.
The boiler circulator may be located anywhere within the recirculation loop.
4)
The balancing valve in the boiler return line, V1, may be necessary in low head by-pass loop applications.
5)
The indirect heater aquastat (A1) is a normally closed switch. Circuit breaks on temperature rise.
6)
Expansion tanks, air scoops and other components left out for clarity
.
7)
Observe all applicable plumbing and electrical codes.
This diagram is for reference only
. The installer or designer is responsible for the proper selection and design of the
system.
Summary of Contents for 24-03
Page 2: ...2...
Page 8: ...8 Section I General Information FIGURE 1 Dimensional Information...
Page 20: ...20 Figure 16 Bare Boiler Assembly...
Page 24: ...24 Figure 22 Series 24 Jacket Assembly Boiler Models 24 03 thru 24 12...
Page 29: ...29 This Page Is Intentionally Left Blank...
Page 45: ...45 Figure 41 Typical Boiler Wiring with RTC Front...
Page 46: ...46 Figure 42 Typical Boiler with RTC Return Sensor Rear...
Page 62: ...62 Figure 44 Bare Boiler Assembly...
