20
Hydronic Heating
Modulation: Boiler Outlet, Boiler Fixed Setpoint Operation (Standalone)
Description
Electrical Connection(s)
Programming Instructions
•
Boiler operates at a
fixed CH setpoint
•
Modulates on boiler
outlet sensor
(default)
•
Heat demand is
generated when
outlet temperature
drops below setpoint
minus on hysteresis
•
If set to local enable
constant pumping is
required
•
For remote enable
intermittent pumping
is allowed.
1)
Place toggle switch to
LOCAL
2)
Press
and
3)
Press
[CH
– Central Heat Configuration]
4)
Press the to arrive at
Setpoint
5)
Select
Setpoint source: Local
6)
Enter desired
Setpoint
7)
Place toggle switch to
REMOTE
for remote enable operation (if
required)
Modulation: Boiler Outlet, Outdoor Reset Operation (Standalone)
Description
Electrical Connection(s)
Programming Instructions
•
Boiler operates with
variable setpoint
determined by
outdoor reset curve
•
Modulates on outlet
sensor (default)
•
Heat demand is
generated when
outlet temperature
drops below setpoint
minus on hysteresis
1)
Connect outdoor sensor to System/Outdoor contacts
2)
Place toggle switch to
LOCAL
3)
Press
and
4)
Press
Outdoor Reset Configuration
5)
Select
Enable: Enable
6)
Select
Maximum outdoor temperature
(WWSD)
7)
Select
Minimum outdoor temperature
(Outdoor Design)
8)
Select
Low Water Temperature
(Min. Water Temp.)
9)
Select
Outdoor boost maximum off point
(Design Max.)
10) Press
[CH
– Central Heat Configuration]
11) Select
Outdoor Reset = Enabled
12) Set
CH Setpoint = Outdoor boost maximum off point
13) Press
Sensor Configuration
14) Select
Outdoor temperature source = S5 (J8-11) sensor
15)
Place toggle switch to
REMOTE
for remote operation (if required)
Summary of Contents for Valiant-FT II Series
Page 2: ...99 0419 Rev 00...
Page 40: ...36 PART 9 PIPING DIAGRAMS Figure 40 Single Boiler Hydronic Heating Zoned Piping...
Page 41: ...37 Figure 41 Multiple Boiler Hydronic Heating Zoned Piping...
Page 42: ...38 Figure 42 Single Boiler with DHW Tank Hydronic Heating Zoned Piping...
Page 43: ...39 PART 10 PARTS LIST...
Page 44: ...40...
Page 45: ...41...
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Page 60: ...56 PART 11 TUBING DIAGRAM...
Page 61: ...57 PART 12 WIRING DIAGRAM...
Page 62: ...58...
Page 63: ...59...