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R

2800 LAURA LANE •  MIDDLETON, WI 53562 •  (800) 288-9383 •  FAX (608) 836-9044 •  www.tcsbasys.com

17

Pointmap Table for SZ1024N (continued)

NPT

NPA

UNITS

POINT DESCRIPTION

RANGE/VALUE

ADDITIONAL NOTES

ADI

41

Wednesday

0-1440

ADI

42

Thursday

0-1440

ADI

43

Thursday

0-1440

ADI

44

Thursday

0-1440

ADI

45

Thursday

0-1440

ADI

46

Friday

0-1440

ADI

47

Friday

0-1440

ADI

48

Friday

0-1440

ADI

49

Friday

0-1440

ADI

50

Saturday

0-1440

ADI

51

Saturday

0-1440

ADI

52

Saturday

0-1440

ADI

53

Saturday

0-1440

ADI

54

Sunday

0-1440

ADI

55

Sunday

0-1440

ADI

56

Sunday

0-1440

ADI

57

Sunday

0-1440

BD

1

DI1 control mode

0=fan proving, 

See "Operation" (page 8).

1=Monitor

BD

2

Occ fan mode

0=On, 1= Auto

"Fan Switch" button on key pad

BD

3

Enable occupied fan  switch

0 = No, 1=Yes

Enables "Fan Switch" button.

BD

4

Enable system  switch

0 = No, 1=Yes

Enables "System Switch" button.

BD

5

Use of discharge air sensor

0 = No, 1=Yes

Always monitored, enables discharge
air function.

BD

6

Enable smart recovery routine

0 = No, 1=Yes

4° per hour setpoint ramp prior to oc-
cupancy for both heating and cooling.

BD

7

Require access code

0 = No, 1=Yes

Programming access from keypad.

for programming?

BD

8

Require access code

0 = No, 1=Yes

Clock/Schedule access from keypad.

for clock/schedule?

BD

9

Enable compressor 2

0=disable, 1=enable

Disable unused stages (recommended).

BD

10

Enable auxiliary heat 1

0=disable, 1=enable

BD

11

Enable auxiliary heat 2

0=disable, 1=enable

BD

12

Reverse valve action for cooling

0=Normally Open

State of relay output during occupied 

1=Normally Closed

period.

BD

13

Time clock relay output

0=Normally Open

State of relay output during occupied

1=Normally Closed

period.

BD

14

Control mode

0=Proportional

Stages turned on and off using offsets
and differentials only.

1=Prop. + Integral

Stages turned on and off using offsets
and differe a time factor.

BD

15

DI1 source 

0=local contact

"Local" means read by or controlled by
Thermostat.

1=remote request

"Remote" means the state of the input or
output is controlled only by computer.

BD

16

DI2 source

0=local contact
1=remote request

BD

17

DI3 source 

0=local contact
1=remote request

BD

18

Override function source

0=local keypad
1=remote request

BD

19

Fan relay source

0=local mode
1=remote request

BD

20

Remote DI1 request

0=off, 1=on

When selected to be "Remote", turns
input or output on and off.

BD

21

Remote DI2 request

0=off, 1=on

BD

22

Remote DI3 request

0=off, 1=on

BD 

23

Remote override request

0=off, 1=on

This is a permanent override.

BD

24

Remote Fan request

0=off, 1=on

Summary of Contents for SZ1022N

Page 1: ...ut economizers z Fan interlock safety option z Filter service input and indication z Equipment monitoring inputs and indication z External time clock input z Energy management input for setpoint shift...

Page 2: ...hielded wire is used and the installation environment is free of electrical noise Sensor wire should be kept at least five feet away from line voltage wiring The SZ1022N or SZ1024N accept two remote s...

Page 3: ...in the cover shown above connected with ribbon cable must be set in order to lock the user out of the program and or to set the clock and schedule Use the guide below to set these dipswitches for you...

Page 4: ...g Screen Press the program setup button to access the following screens Access Code Entry Screen Will appear if access code is required for programming Use 248 as the default If the wrong code is ente...

Page 5: ...for heat stage 1 First stage is normally 0 offset Heat Stage 1 Differential Screen Enter a differential value for heat stage 1 Heat Stage 2 Offset Screen Enter an offset value for heat stage 2 This sc...

Page 6: ...his screen only appears if compressor 2 is enabled Compressor Stage 2 Differential Screen Enter a differential value for compressor stage 2 This screen only appears if compressor stage 2 is enabled Au...

Page 7: ...creen Setting Clock and Schedule The SZ1022N and SZ1024N clock and schedule may be set through the display and keypad or with a PC For more information on programming through the PC consult the softwa...

Page 8: ...set DI3 to time clock and close the contact when you want the room occupied such as with a switch or wind up timer If each occupancy period is about the same theaters meetings another option is to se...

Page 9: ...rential consideration and ramps the setpoint when going from the unoccupied mode to the occupied mode At the beginning of the occupied mode the occupied setpoint will be reached many times without the...

Page 10: ...e fan is on whenever the fan LED is on If the fan should be on but the fan LED is off check the fan and system switch modes and the unoccupied fan mode in programming If the fan is off but the fan LED...

Page 11: ...e following screens Service Screen This message may be followed by any or all of the following CHECK FILTER CHECK FAN DISCHARGE HIGH DISCHARGE LOW or CHECK DI2 Discharge Air Temperature Screen Shows d...

Page 12: ...mode is allowed by factory default To lock out access to system switching see programming step 5 SETTING CLOCK SCHEDULE The ability to set the clock and schedule is allowed by factory default An acces...

Page 13: ...e heating setpoint is shifted down ADI 19 Seconds Internal time clock second 0 59 ADI 20 Minutes Internal time clock minute 0 59 ADI 21 DegF C Occupied heating setpoint 40 90 4 32 Occupied heating set...

Page 14: ...s 4 per hour setpoint ramp prior to oc cupancy for both heating and cooling BD 7 Require access code 0 No 1 Yes Programming access from keypad for programming BD 8 Require access code 0 No 1 Yes Clock...

Page 15: ...eck DI2 NOTE 1 The Service status point represents general Check status If this is point is 1 the user can find out the actual failing condition by polling point 38 to 42 If this point is 0 points 38...

Page 16: ...DegF C Occupied heating setpoint 40 90 4 32 Occupied heating setpoint must be less than occupied cooling setpoint ADI 19 DegF C Unoccupied heating setpoint 40 90 4 32 Unoccupied heating setpoint must...

Page 17: ...e access code 0 No 1 Yes Clock Schedule access from keypad for clock schedule BD 9 Enable compressor 2 0 disable 1 enable Disable unused stages recommended BD 10 Enable auxiliary heat 1 0 disable 1 en...

Page 18: ...is 1 then by polling point 38 to 42 the user can find out actual failing condition If this point is 0 then points 38 to 42 will be also 0 NOTE 2 All of the ADI and BD points support the override funct...

Page 19: ...R 2800 LAURA LANE MIDDLETON WI 53562 800 288 9383 FAX 608 836 9044 www tcsbasys com 19...

Page 20: ...R 2800 LAURA LANE MIDDLETON WI 53562 800 288 9383 FAX 608 836 9044 www tcsbasys com 20 Rev 0305...

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