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PAGE 7

NEP04/03

                       www.hvacquick.com                 877-711-4822

Control Equipment

PTC

program level organization:  cont.

When the 

ptc

 is turned on. it is automatically in user

mode.  In this mode only the setpoint may be changed
(within the limits set by the minimum and maximum
setpoint settings) by pressing the   

up

   or  

down

buttons.

To enter program mode, push the 

MENU

 button once.

The first program level message ( hi ) will be dis-
played for 2 seconds, followed by the 

maximum

setpoint setting

.  Pushing the 

up

 or 

down

 buttons,

set the maximum setpoint you
wish the user to have access
to.  Once that is done, push the 

ENTER

 button to

store this value in memory.

Push  

MENU

 once again.  The second program level

message ( Lo ) will be displayed for 2
seconds, followed by the 

minimum

setpoint setting

.

Pushing the 

up

 or  

down

  buttons, set the minimum

setpoint you wish the
user to have access to.

Once that is done, push the 

ENTER

 button to store

this value in memory.

Note that if you wish to fix the temperature setpoint
to one value (ie; not adjustable by the user), set the
(hi) and ( Lo ) values to the desired temperature
setpoint.

1

2

Push  

MENU

 again.  The third program level message

                      ( Ca ) will be displayed for 2 seconds,
                      followed by the setpoint of 

contact A

.  It

is displayed in the following format:

Pushing the  

up

 or 

down

 buttons will change the

contact setpoint.  When you have arrived at the setpoint
you wish, push the 

ENTER

 button to store this value in

memory.

3

message

contact setpoint

H2

heating at 20 % demand

H3

heating at 30 % demand

H4

heating at 40 % demand

H5

heating at 50 % demand

H6

heating at 60 % demand

H7

heating at 70 % demand

H8

heating at 80 % demand

H9

heating at 90 % demand

C2

cooling at 20 % demand

C3

cooling at 30 % demand

C4

cooling at 40 % demand

C5

cooling at 50 % demand

C6

cooling at 60 % demand

C7

cooling at 70 % demand

C8

cooling at 80 % demand

C9

cooling at 90 % demand

Summary of Contents for PTC

Page 1: ...c n e p t r o n PAGE1 NEP04 03 www hvacquick com 877 711 4822 Control Equipment PTC modulating wall thermostat PTC PTC PTC PTC PTC...

Page 2: ...150 C 00 to 270 F deadband expansion 2 hours deadband expansion around setpoint Opti mized soft start for peak electrical demand reduction Warm up ramp time programmable over 0 to 99 minutes 0 to 75 i...

Page 3: ...ton is also used to increase a given parameter when in program mode Similarly the down button is used to decrease the temperature setpoint cooler or decrease a parameter in program mode The menu butto...

Page 4: ...may be used to actuate several triac switches or even a thermo electric valve directly 10 time proportional modulation output 2 1 or 24vdc output This output is similar to pin 9 except that the output...

Page 5: ...ool is required and the programming sequences are all menu driven Description of all programming steps is done in the order in which they appear while actually programming the thermostat Please look a...

Page 6: ...nd it uses default factory settings Setpoint change To check the setpoint momentarily press the UP or DOWN button The display will automati cally show the setpoint To change setpoint press the UP or D...

Page 7: ...mum setpoint you wish the user to have access to Once that is done push the ENTER button to store this value in memory Note that if you wish to fix the temperature setpoint to one value ie not adjusta...

Page 8: ...proportional band The ptc operates using a p i algorithm with the integral terms optimized automatically by the ther mostat But since the proportional band has the greatest effect on the output adjus...

Page 9: ...f for example the ptc was reading 2 degrees lower than the actual temperature set the temperature calibration adjustment to 2 Adjust the calibration value by pushing the up or down buttons When finish...

Page 10: ...designed to fit on standard 2020 electrical box thermostat box or directly on dry wall ensured to align pin guides with the base board for proper fitting to open grab top and bottom of front cover an...

Page 11: ...unit Terminal strip Fan on 24 hours L1 L2 R R Heater Notes use intermediate relay R for high current load over 1A discharge air temp control with remote temp indicator return air duct heater fresh air...

Page 12: ...711 4822 NEP04 03 national environmental products montreal canada Control Equipment PTC Two typical zone VAV box control Cooling ramps modulates VAV Box actuator heating ramps modulates terminal rehe...

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