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Outdoor

Current outdoor air temperature as measured by the outdoor

sensor. This item is only available when the

External Input

Stand

Alone DIP switch

is set to Stand Alone.

-76 to 149°F
(-60 to 65°C)

Boiler Supply

Current boiler supply water temperature as measured

by the boiler supply sensor.

-22 to 266°F
(-30 to 130°C)

Boiler Target

Boiler target temperature is the temperature the con-

trol is currently trying to maintain at the boiler supply sensor.

– – –, 35 to 230°F

(– – –, 2 to 110°C)

Boiler Return

Current boiler return water temperature as measured

by the boiler return sensor.
A boiler return sensor must be installed to view this item.

-22 to 266°F
(-30 to 130°C)

Boiler

The actual temperature difference between the boiler

supply and the boiler return sensors.
A boiler return sensor must be installed to view this item.

0 to 252°F
(0 to 140°C)

Boiler 1 Modulation

Current percent modulation of the boiler’s

burner. This item is only available when Boiler 1 is set to Au
(automatic).

0 to 100%

Boiler 2 Modulation

Current percent modulation of the boiler’s

burner. This item is only available when Boiler 2 is set to Au
(automatic) or CP1 (copy 1).

0 to 100%

Boiler 3 Modulation

Current percent modulation of the boiler’s burner.

This item is only available when Boiler 3 is set to Au (Automatic) or
CP1 (copy 1) and DHW MODE is set to OFF.

0 to 100%

Boiler 1 Hours

The total running time of boiler 1 since this item

was last cleared. To clear this item, press the

▲

and

▼

button

simultaneously while viewing this item.
This item is only available when Boiler 1 is set to Au (automatic).

0 to 1999 hr

Boiler 2 Hours

The total running time of boiler 2 since this item

was last cleared. To clear this item, press the

▲

and

▼

button

simultaneously while viewing this item.
This item is only available when Boiler 2 is set to Au (automatic) or CP1.

0 to 1999 hr

Boiler 3 Hours

The total running time of boiler 3 since this item

was last cleared. To clear this item, press the

▲

and

▼

button

simultaneously while viewing this item.
This item is only available when Boiler 3 is set to Au (automatic) or
CP1 and DHW MODE is set to OFF.

0 to 1999 hr

Display

Description

Range

Section

Installer

View

Menu (1 of 1)

Содержание Boiler Control 265

Страница 1: ...dulating Boiler Output Boiler Enable Output Pump Output Boiler Enable or Pump Input Setpoint or DHW Demand Input 115 V ac Power Supply Output Primary Pump Input Timer or Switch Optional Output Combust...

Страница 2: ...he 265 has four push buttons Menu Item for selecting and adjusting settings As you program your control record your settings in the ADJUST Menu table which is found in the second half of this brochure...

Страница 3: ...ontrol is in UnOccupied Mode Primary Pump Displays when the primary pump relay is turned on Occupied Schedule Displays when the control is in Occupied Mode Boiler Pump Displays which boiler pump relay...

Страница 4: ...ply water temperature to a hydronic space heating system or setpoint When using the control to provide Domestic Hot Water DHW requirements only two modulating boilers can be operated The supply water...

Страница 5: ...t setting This alert can be used to determine if the boilers have failed to fire To reset the alert press and hold the and buttons for 5 seconds while in the VIEW menu ROTATION The control includes an...

Страница 6: ...ATION Boiler 1 Boiler 2 Boiler 3 100 MOD OFF PARALLEL MODULATION Boiler 1 Boiler 2 Boiler 3 MOD MOD MOD SEQUENTIAL MODULATION The control offers a sequential modulation option This is selected by sett...

Страница 7: ...culate the Maximum Modulation use the following formulae For 4 to 20 mA Maximum Modulation 4 mA Boiler s Maximum Input Signal x 100 4 20 mA For 0 to 10 V dc Maximum Modulation 0 V dc Boiler s Maximum...

Страница 8: ...onse rate it may be necessary to increase the Motor Speed setting in order to increase the stability of the boiler modulation Example 1 A boiler s input signal range is 2 to 9 V dc The 265 control has...

Страница 9: ...ve PID logic in order to satisfy the boiler target temperature Fixed Differential If the user desires to have a fixed differential this is set using the boiler differential setting in the ADJUST menu...

Страница 10: ...to thermally shock a boiler when it is shut off at high fire The Soft Stop feature forces the boiler to modulate down to minimum before turning off This is designed to prevent large volumes of cold ai...

Страница 11: ...49 C 140 F 60 C 190 F 88 C 180 F 82 C 160 F 71 C 150 F 66 C BOIL MAX 140 F 60 C 160 F 71 C 210 F 99 C 200 F 93 C 180 F 82 C 170 F 77 C BOIL MIN OFF OFF 140 F 60 C 140 F 60 C 140 F 60 C 140 F 60 C High...

Страница 12: ...nter in the display When the control is in WWSD the Boiler Demand pointer is displayed if there is a boiler demand However the control does not operate the heating system to satisfy this demand The co...

Страница 13: ...HG The DHW demand overrides the boiler reset target temperature except when the boiler reset target is higher than the DHW Exchange setting DHW MODE AND PRIORITY OPERATION The control has five differe...

Страница 14: ...nues this purge for a maximum of two minutes or until the boiler supply water temperature drops 20 F 11 C below the boiler target temperature during the DHW operation The control also stops the purge...

Страница 15: ...the boiler supply temperature is sufficiently reduced the Boiler 3 DHW contact shuts off The heating system is turned on for a period of time to prevent the building from cooling off After a period o...

Страница 16: ...iler SETP MODE 2 Setpoint in Parallel with Priority Whenever a setpoint demand is present the boiler s is operated to maintain the setpoint target and the primary pump Prim P1 contact is opened It is...

Страница 17: ...mary pump and boiler pumps operate as described in section G INPUT SIGNAL The control can accept either a 0 10 V dc signal or a 2 10 V dc signal The External Input Signal setting must be set to the pr...

Страница 18: ...Pump Boiler Pumps Primary Pump Boiler Pumps Primary Pump Boiler Pumps OR Example Range 0 10 V dc Input 7 V dc 157 F 69 C Offset 5 F 3 C 5 F 3 C Boiler Target 162 F 72 C CONVERSION TABLE 0 10 0 20 mA 0...

Страница 19: ...g to cross between sections as the wires will interfere with safety dividers which should be installed at a later time Power must not be applied to any of the wires during the rough in wiring stage Al...

Страница 20: ...DHW MODE must also be set to 1 through 4 Setpoint Demand To generate a Setpoint Demand a voltage between 24 V ac and 230 V ac must be applied across the Setp DHW Dem and Com Dem terminals 31 and 30 T...

Страница 21: ...There is no power available on these terminals from the control These terminals are to be used as a switch to enable the modulating boiler Since this is an isolated contact it may switch a voltage be...

Страница 22: ...to 0 to 10 V dc using an external 500 resistor across the Mod 1 Mod 2 Mod 3 terminals The 4 to 20 mA output can be converted to a 0 135 output for a Modutrol IV gas valve actuating motor using a 0 135...

Страница 23: ...the control to measure the boiler supply water temperature Boiler Return Sensor Connect the two wires from the Boiler Return Sensor 071 to the Com and Boil terminals 1 and 3 The boiler return sensor i...

Страница 24: ...3 and 14 using an AC voltmeter the reading should be between 103 5 and 126 5 V ac Test the Powered Inputs Boiler Demand If a boiler demand is used measure the voltage between the Boil Dem and Com Dem...

Страница 25: ...2 are running If the boiler s operates properly disconnect the power and remove the jumper Boiler 3 DHW Contact Boiler Operation If a boiler is connected to the Boiler 3 DHW contact 21 and 22 make sur...

Страница 26: ...switch settings change the items that are available to be viewed and or adjusted in the User Interface If a DIP switch is changed while the control is powered up the control responds to the change in...

Страница 27: ...h is set to Exercise the pumps are operated for 10 seconds after every three days of inactivity Parallel Sequential The Parallel Sequential DIP switch selects whether to modulate the boilers using par...

Страница 28: ...0 Boiler 2 Modulation Current percent modulation of the boiler s burner This item is only available when Boiler 2 is set to Au automatic or CP1 copy 1 0 to 100 Boiler 3 Modulation Current percent modu...

Страница 29: ...Default Au B Boiler 2 Selects whether or not boiler 2 is operational CP1 copies the settings of Boiler 1 to Boiler 2 CP1 Au Auto OFF Default CP1 B Boiler 3 Selects whether or not boiler 3 is operation...

Страница 30: ...iler and when the burner actually fires This item is only available when Boiler 1 is set to Au automatic 0 00 to 4 00 minutes 1 sec increment Default 0 10 min B Boiler Mass 1 The thermal mass characte...

Страница 31: ...hour This item is only available when Boiler 2 is set to Au automatic or CP1 copy 1 1 to 1999 Default 10 B Maximum Boiler 2 Output The maximum boiler 2 output in 10 000 s of BTU hour This item is onl...

Страница 32: ...t to Au automatic or CP1 copy 1 and DHW MODE is set to OFF 0 to 50 Default 0 B Maximum Modulation 3 The maximum percent modu lation of the burner This item is only available when Boiler 3 is set to Au...

Страница 33: ...C WWSD Occupied The system s warm weather shut down temperature during the Occupied period This item is only available when the External Input Stand Alone DIP switch is set to Stand Alone 35 to 100 F...

Страница 34: ...If Boiler 3 is set to OFF and DHW MODE is set to 3 or 4 the DHW contact is closed and the primary pump stays on If Boiler 3 is set to OFF and DHW MODE is set to 1 or 2 the DHW contact is closed and th...

Страница 35: ...it The control will not operate the boiler s until the sensor is repaired Locate and repair the problem as described in the Data Brochure D 070 To clear the error message from the control after the se...

Страница 36: ...HEALTH OR SAFETY LEGISLATION THE TERM OF ANY OTHER WARRANTY NOT HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT EXTEND BEYOND TWENTY FOUR 24 MONTHS FROM THE PRODUCTION DATE TO THE EXT...

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