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75
A3. 3-way RTC in Primary/Secondary – Heating and DHW using Indirect W
ater Heater; with/without Outdoor Reset
(ELECTRICAL)
NOTES:
1)
Refer to the I&O to determine correct valve orientation and actuator wiring.
2)
120 V
AC supplying the R
TC should be separate from the burner/boiler circuit.
3)
Heat demand can be any electrical signal consisting of 24 – 240 V
AC.
4)
The Outdoor Sensor (S3) and the Mix Supply Sensor (S2) are required if the Outdoor Reset feature is selected.
5)
Use isolation relays for circulators greater than 1/3 HP
. Use motor starters for 3 phase circulators.
6)
System Pump (P3) to be operated by zone relay or other installer supplied device.
This diagram is for reference only
. The installer or designer is responsible for the proper selection and design of the
system.
Содержание 24-03
Страница 2: ...2...
Страница 8: ...8 Section I General Information FIGURE 1 Dimensional Information...
Страница 20: ...20 Figure 16 Bare Boiler Assembly...
Страница 24: ...24 Figure 22 Series 24 Jacket Assembly Boiler Models 24 03 thru 24 12...
Страница 29: ...29 This Page Is Intentionally Left Blank...
Страница 40: ...40 Figure 35 Typical Steam Piping Arrangement for Boilers with Pumped Condensate Return and Boiler Feed Unit...
Страница 45: ...45 Figure 41 Typical Boiler Wiring with RTC Front...
Страница 46: ...46 Figure 42 Typical Boiler with RTC Return Sensor Rear...
Страница 60: ...60 Figure 43 Series 24 Jacket Assembly Boiler Models 24 03 thru 24 12 SECTION VII REPAIR PARTS Continued...
Страница 62: ...62 Figure 44 Bare Boiler Assembly...
Страница 89: ...89 SERVICE RECORD DATE SERVICE PERFORMED...