background image

                                                           

HWHC2100 v2.53 Operation Manual     

CONFIDENTIAL

 

 

 

 

21 Harbor Park Dr. N, Port Washington, NY 11050 Phone: 516.626.72211 Fax: 516.626.7201 

Fig.3b  Heat Gain 
Ratio (Mild 
Weather is 55°F  ) 
curves. 

 

70

100

130

160

190

220

250

-20

-10

0

10

20

30

40

50

Outdoor Temperature (in F)

S

y

s

te

m

 W

a

te

T

e

m

p

e

ra

tu

re

 (

in

 F

)

1:3

1:2

1:1.5

1:1.25

1:1

1.25:1

1.5:1

2:1

3:1

4:1

 

Compensator 

The Compensator parameter provides day(or night) adjustment to the amount of heat being delivered to compensate 
for the influence of extreme weather condition. When calculating target temperature, the controller, adds or subtracts 
the Compensator value from the calculated temperature. Therefore, any change made to the Compensator will 
change the value of the calculated target temperature by the same amount and will change position of the valve.  
Positive values of the parameter increase heat delivery (more opens valve), while negative values reduce it (closes 
the valve). Fig.4 illustrates effects of the Compensator on the control curve. 

Range: -40°F to +40°F with 1° step. Default value is 0°F.

 

D:Mild 

 (DAY MILD 
WEATHER) 

The controller closes the valve completely when the outdoor temperature is higher than this parameter and the 
time between 5AM and 10PM. The Pump will work on for a period of time set by the ‘PumpRunDelay’ setpoint 
and will turn off. 

Range: 40° to 80 °F with 1° step. Default value is 55°F. 

N:Mild 

 (NIGHT 
MILD 
WEATHER) 

If the outdoor temperature is higher than this parameter and the time is between 10PM and 5AM, then the valve 
is closed completely. The Pump will work on for a period of time set by the ‘PumpRunDelay’ setpoint and will 
turn off. 

If the outdoor temperature is lower than this parameter and the time is between 10PM and 5AM, then the valve 
position is corrected in accordance with the ‘NIGHT SETBACK’ parameter. 

Range: 20° to 60 °F with 1° step. Default value is 40°F. 

N:Stbk 

(NIGHT 
SETBACK) 

The controller subtracts from

 

the previously calculated target temperature

 

the ‘NIGHT

 

SETBACK’ value to 

reduce heat delivery during the nighttime. 

Range: 0° to 80 °F with 1° step. Default value is 10°F. 

Summary of Contents for HWHC2100

Page 1: ...temperature or condensate return temperature return water temperature HWHC2100 works as a standalone controller and can be connected to a Local Server which provides additional parameters adjustments...

Page 2: ...es or change settings The control keypad consists of four pushbuttons Escape Esc Down Up Enter Enter The keys are also marked with letters A B C D used to simplify the passwords memorizing During norm...

Page 3: ...ened or closed depending on the mode of the last operation as follows Operation Mode Valve Direction Status Information AUTO To Close Position Sync_C M_SET To Close Position Sync_C M_CLOSE To Close Po...

Page 4: ...d then one should enter a certain key sequence For convenience the passwords are coded as the sequence of letters e g DDBBCBA Starting point of the menu is the topmost item of the leftmost box current...

Page 5: ...s SET TIME DATE SET Minute NEWMinute 56 VlvCtlType Curnt SET Com ID NEW Com ID 3 SET Hour NEW Hour 2PM D Mild 55 F CACADCB SET Month NEW Month 02 N Mild 45 F SET MAINTENANCE Password1 SET D Mild NEW D...

Page 6: ...h between the different configuration one should press Up or Down keys Hitting Enter key accepts the new configuration Esc rejects and leaves the configuration unchanged 6 Modes of operation The upper...

Page 7: ...he NIGHT MILD WEATHER and NIGHT SETBACK parameters Please see an example in section 6 Notes The valve will be unconditionally set to 0 when Out Door Temperature achieves Day time Mild Weather Set Poin...

Page 8: ...Fig 3b With any of the ratios the colder it becomes outside the hotter the temperature of the system water On the both examples Compensator 0 and NIGHT SETBACK 0 Positive Compensator values shift the...

Page 9: ...g 4 illustrates effects of the Compensator on the control curve Range 40 F to 40 F with 1 step Default value is 0 F D Mild DAY MILD WEATHER The controller closes the valve completely when the outdoor...

Page 10: ...ens 10 Boost Span Morning boost time span The controller boosts heat only with AUTO mode in effect Range 0 30 60 90 120 minutes 0 means no boost or Vari Boost the length of the Boost time depends on t...

Page 11: ...d from host computer is higher than this set point and the time is between Day End and Day Begin then the valve will be closed completely N ICOFF state Range 40 to 80 F InDrD_Band Used along with In D...

Page 12: ...de of operation specify the appropriate time in seconds between the Valve Motor motion Normally this parameter is set at the system installation time Range 0 to 127 seconds with 1 second step Default...

Page 13: ...ration Valve position is 37 open System temperature is 144 F Morning Heat Up Calculated Target Temperature is 188 F AUTO 189 BOOST AUTO 140 D Mild AUTO 140 N Mild VLV 37 ST 155 VLV 12 ST 144 VLV_0 ST...

Page 14: ...ign will change to Mode of Operation OFF Mode of Operation M_SET SET 180 VLV 67 ST 123 Target Temperature is 180F Normal operation system temperature is 123F For the motorized valve controlled by rela...

Page 15: ...adjustment valve position would perform at the close position Pump would be turn off after period of time set by the Pump Run On set point System Temperature Sensor fails Initial Synchronization Valv...

Page 16: ...and shows actual reading of the temperature sensor ST zz x 3 The lower line of the display shows possible adjustment for example NewSysTAdj 0 2 4 Press Up or Down key to make the reading equal to the...

Page 17: ...MCI Transformer 4 06 7345 1 5 10 9 7 6 Pump1 2 Pump1 1 Pump2 1 Pump2 2 9 5 12 4 8 13 14 Terminals Board J1 1 2 3 H H 8 9 10 11 12 13 14 7 4 5 6 1 2 J2 1 2 Transformer 1 9 5 4 8 9 5 Motor Controls comm...

Reviews: