Tekmar D 270 Скачать руководство пользователя страница 9

 

9 of 24 

 © 2010          D 270 - 08/10

BOIL MAX

BOIL DSGN

OUT DSGN

ROOM OCC

ROOM UNOCC

210
(99)

190
(88)

170
(77)

150
(66)

130
(54)

110
(43)

90
(32)

70
(2   

50°F
(10°C)

-20

(-29)

0

(-18)

20

(-7)

40

(5)

60

(16)

80

(27)

Outdoor Air Temperature

Supply W

a

ter T

e

mperatur

e

Boiler Characterized

Heating Curve

Boiler Characterized

Heating Curve

BOIL MIN

BOIL INDR

WWSD OCC   

WWSD UNOCC

CHARACTERIZED HEATING CURVE

The control varies the supply water temperature based on the outdoor air 
temperature. The control takes into account the type of terminal unit that 
the system is using. Since different types of terminal units transfer heat 
to a space using different proportions of radiation, natural convection 
and forced convection, the supply water temperature must be controlled 
differently. Once a terminal unit is selected, the control varies the supply 
water temperature according to the type of terminal unit. This improves 
the control of the air temperature in the building.

BOILER DESIGN TEMPERATURE

The boiler design supply temperature is the supply water temperature 
required to heat the building when the outdoor air temperature is as cold 
as the outdoor design temperature.

BOILER INDOOR DESIGN TEMPERATURE

The indoor design temperature is the room temperature that was used in 
the original heat loss calculations for the building. This setting establishes 
the beginning of the characterized heating curve.

ROOM

The 

Room 

setting is the desired room temperature for the building and provides a parallel shift of the heating curve. The room 

temperature desired by the occupants is often different from the design indoor temperature. If the room temperature is not correct, 
adjusting the 

Room 

setting increases or decreases the amount of heat available to the building. A

 Room 

setting is available for both 

the occupied (day) and unoccupied (night) periods.

INDOOR SENSOR

With the indoor sensor connected, the control is able to sense the actual room temperature. Indoor temperature feedback fine-
tunes the supply water temperature in the heating system to maintain room temperature. To adjust the room temperature, use the 

Room Occ 

or 

Room UnOcc 

setting in the ADJUST menu at the control.

The indoor sensor is connected to the 

Indr

 and 

Com

 terminals (17 and 18). In addition, power must be applied to the 

Boiler Demand 

terminals (1 and 2) as described in the Boiler Demand section.

If a multiple zone system is used with an indoor sensor, proper placement of the indoor sensor is essential. The indoor sensor 
should be located in an area which best represents the average air temperature of the zones.

TERMINAL UNITS

The control provides for a selection between six different terminal unit types: two types of radiant floor heat, fancoil, fin-tube 
convector, radiator and baseboard. When a terminal unit is selected, the control automatically loads the design supply temperature, 
maximum supply temperature, and minimum supply temperature. The factory defaults are listed below. These factory defaults can 
be changed to better match the installed system.

Terminal Unit

High Mass 

Radiant (1)

Low Mass

Radiant (2)

Fancoil

(3)

Fin-Tube

Convector (4)

Radiator

(5)

Baseboard

(6)

BOIL DSGN

120°F (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 Mass Radiant (1)

This type of a hydronic radiant floor is embedded in either a thick concrete or gypsum 
pour. This heating system has a large thermal mass and is slow acting.

Low Mass Radiant (2)

This type of radiant heating system is either attached to the bottom of a wood sub-floor, 
suspended in the joist space, or sandwiched between the sub-floor and the surface. 
This type of radiant system has a relatively low thermal mass and responds faster than 
a high mass system.

Содержание D 270

Страница 1: ...Indr UnO Boil Com Sw Boiler Control 270 One Modulating Boiler DHW Boiler Pmp P2 DHW Pmp Vlv H2039A Menu Item Boiler Demand DHW Demand Modulation DHW Priority Override Test o not testing red testing r...

Страница 2: ...sh 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 Menu All of the i...

Страница 3: ...gs Burner Displays when Relay 1 is turned on Warning Displays when an error exists or when a limit has been reached Pump Displays when the primary or boiler pump is operating Lock Unlock Displays when...

Страница 4: ...m The supply water temperature is based on outdoor reset or a fixed temperature for DHW Outdoor Reset When a boiler demand signal from the heating system is present the control operates the boiler s t...

Страница 5: ...calculates a boiler target temperature that is below the Boiler Minimum setting the boiler target temperature is adjusted to at least the Boiler Minimum setting During this condition if the boiler is...

Страница 6: ...ut signal range of the 270 control The Minimum Modulation setting limits the control output range in order to match the boiler s input range To calculate the Minimum Modulation use the following formu...

Страница 7: ...residential cast iron boilers or steel tube boilers The Med Mass setting provides a moderate response to the heating system Hi 3 The Hi setting is selected if the boiler that is used has a high therm...

Страница 8: ...of time that the primary pump continues to run is adjustable using the Primary Pump Purge setting The primary pump continues to run until either the purging time has elapsed or the boiler supply temp...

Страница 9: ...ight periods INDOOR SENSOR With the indoor sensor connected the control is able to sense the actual room temperature Indoor temperature feedback fine tunes the supply water temperature in the heating...

Страница 10: ...on the WWSD pointer 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 thi...

Страница 11: ...contact is opened until the heating system has recovered before returning to DHW operation This mode can be used if a DHW tank is piped in direct return and a DHW valve is installed DHW MODE 4 Extern...

Страница 12: ...heat from the boiler into the DHW tank The control continues this purge for a maximum of four minutes or until the boiler supply water temperature drops 20 F 11 C below the boiler target temperature d...

Страница 13: ...or Sensor 070 One Universal Sensor 082 Data Brochures D 270 D 070 D 001 Application Brochure A 270 Note Carefully read the details of the Sequence of Operation to ensure that you have chosen the prope...

Страница 14: ...power supply must be used to power both the DHW Demand and the Boiler Demand circuits since they both share the Com Dem terminal Output Connections Primary Pump Contact Prim P1 The Prim P1 output term...

Страница 15: ...When these two terminals are shorted together the control registers an unoccupied UNOCC signal Connection to Operate Modulating Boiler 11 12 Mod V dc V dc STEP FIVE TESTING THE WIRING General Each ter...

Страница 16: ...e wiring between the terminal block and pump and refer to any installation or troubleshooting information supplied with the pump If the pump operates properly disconnect the power and remove the jumpe...

Страница 17: ...oth with water and wring out prior to wiping control Do not use solvents or cleaning solutions DIP Switch Settings GENERAL The DIP switch settings on the control are very important and should be set t...

Страница 18: ...measured by the boiler supply sensor 22 to 266 F 30 to 130 C Boiler Target Boiler target temperature is the temperature the control is currently trying to maintain at the boiler supply sensor of the...

Страница 19: ...F 82 C B1 Boiler Minimum The minimum allowed boiler target temperature Check the boiler manufacturer s manual for a recommended setting OFF 80 to 180 F OFF 27 to 82 C Default 140 F 60 C B1 Boiler Maxi...

Страница 20: ...C Default 180 F 82 C DHW Exchange Unoccupied Selects whether or not a DHW demand will be responded to during the UnOccupied period OFF On Default OFF WWSD Occupied The system s warm weather shut down...

Страница 21: ...essed again to advance to the next step This can also be used to rapidly advance through the test sequence To reach the desired step repeatedly press and release the Test button until the appropriate...

Страница 22: ...ystem start up in order to purge air from the piping To enable the Max Heat feature use the following procedure 1 Press and hold the Test button for more than 3 seconds At this point the control flash...

Страница 23: ...to read the boiler supply sensor due to a short circuit The control will not operate the boiler until the sensor is repaired Locate and repair the problem as described in the Data Brochure D 070 To cl...

Страница 24: ...AND FITNESS FOR A PARTICULAR PURPOSE DURA BILITY OR DESCRIPTION OF THE PRODUCT ITS NON INFRINGEMENT OF ANY RELEVANT PATENTS OR TRADEMARKS AND ITS COMPLIANCE WITH OR NON VIOLATION OF ANY APPLICABLE EN...

Отзывы: