27
LP-387 REV. 12.15.14
Figure 11
– Primary/Secondary Boiler Piping – Zone Valves and DHW Priority – Outdoor Reset - NOTES:
1. This drawing is meant to show system piping concept only. Installer is responsible for all equipment and detailing required by local codes.
2. All closely spaced tees shall be within 4 pipe diameters center to center spacing.
3. A minimum of 6 pipe diameters of straight pipe shall be installed upstream and downstream of all closely spaced tees.
4. The
minimum
pipe size for connecting a SuperStor indirect water heater is 1”
5. The
minimum
pipe size for connecting an EFT-55/80/110 - 1
”, EFT-155/199/285 – 1.25”, EFT-399 – 1.5”.
6. Circulators are shown with isolation flanges. The alternative is standard flanges with full port ball valves. Purge valves can be used with circulator
flanges as an alternative.
7. A mixing valve is recommended if the DHW temperature is set above the factory setting of 119
o
F.
8. Piping shown is Primary/S
econdary. System flow (secondary loop) must be greater than the boiler’s primary loop flow.
9. Install a minimum of 12 diameters of straight pipe upstream of all circulators.
10.
VERY IMPORTANT
– Minimum flow rates outlined in this manual must be maintained through the heat exchanger to minimize short cycling.
Summary of Contents for EFT-110
Page 14: ...14 LP 387 REV 12 15 14 SPECIFICATIONS AND DIMENSIONS Figure 2 LP 387 K ...
Page 24: ...24 LP 387 REV 12 15 14 Figure 8 Piping Symbol Legend ...
Page 58: ...58 LP 387 REV 12 15 14 Figure 32 Cascade Master and Follower Wiring ...
Page 59: ...59 LP 387 REV 12 15 14 Figure 33 Internal Connection Diagram LP 293 J ...
Page 82: ...82 LP 387 REV 12 15 14 EFT 55 80 110 PARTS BREAKDOWN Figure 36 Replacement Parts LP 387 J ...
Page 88: ...88 LP 387 REV 12 15 14 ...
Page 89: ...89 LP 387 REV 12 15 14 ...
