71
A1. 3-way RTC in Primary/Secondary – Heating Only/No DHW
; 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)
Use isolation relays for circulators greater than 1/3 HP
. Use motor starters for 3 phase circulators.
5)
The Outdoor Sensor (S3) and the Mix Supply Sensor (S2) are required if the Outdoor Reset feature is selected.
6)
System Pump (P2) 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 sys
-
tem.
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...
