Raytherm 0042B, Инструкция по установке и эксплуатации

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Fig. 16: Single-Zone Piping
Piping Diagrams
Hydronic, Outdoor Air Reset with
Indirect DHW
For hydronic operation with outdoor air reset and
Indirect DHW, the System Supply Sensor (S2) is used
as the operating sensor. Boiler Outlet Sensor (S1) is
used for boiler outlet maximum limiting. Contact clo-
sure from an aquastat located on an indirect DHW
tank will cause the controller to operate to a boost tem-
perature to satisfy the indirect call for heat. Once the
aquastat opens the controller will return to normal
operation. The indirect pump is operated by an exter-
nal relay (by others). The Boiler Pump (P1) is
controlled by the boiler and is cycled off using a 5
minute fixed purge delay after burner operation has
ceased.
The DIP switch settings are as follows:
DIP 1 ON (ON/OFF) – OFF (2-STAGE)
DIP 2 ON (OUTDOOR RESET)
DIP 3 ON (WWSD 70°F)
DIP 4 ON (190°F BOIL MAX)
DIP 5 ON (HYDRONIC)
Hydronic with Outdoor Air Reset
For hydronic operation with outdoor air reset, the
System Supply Sensor (S2) is used as the operating
sensor. Boiler Outlet Sensor (S1) is used for boiler out-
let maximum limiting. Boiler Pump (P1) is controlled by
the boiler and is cycled off using a 5 minute fixed purge
delay after burner operation has ceased.
The DIP switch settings are as follows:
DIP 1 ON (ON/OFF) – OFF (2-STAGE)
DIP 2 ON (OUTDOOR RESET)
DIP 3 ON (WWSD 70°F)
DIP 4 ON (190°F BOIL MAX)
DIP 5 ON (HYDRONIC)
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