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PAGE 3

NEP04/03

                       www.hvacquick.com                 877-711-4822

Control Equipment

PTC

description:

description:

description:

description:

description:

The ptc is a powerful microprocessor based menu driven temperature controller for heating and cooling
applications

.  Please read the following information to maximize the potential of this powerful thermostat.The following

are some highlights of the 

ptc

:

* p.i. analog heating and cooling outputs
* 2 sequential p.w.m. heating outputs to proportionally
   drive solid state relays
* 2 fully programmable dry contact relays to be used in
   heating and/or cooling applications
* high signal selections outputs from multiple ptc's to
  be used by a master system
* individually programmable night set back/ set up
* night set back override

* intelligent self-optimizing morning self start
* minimum position setting for heating and cooling output
* programmable min and  max allowable temperature setting
* selectable internal/external sensor
* led display
* programmable Celcius or Fahrenheit display
* plug in easily removable thermostat body
* attractive flat casing

button

button

button

button

button
functions:

functions:

functions:

functions:

functions:

The up button is used to increase
the temperature set point (warmer)
while the thermostat is operating in
user mode.  The up button 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 button is used to place
the ptc into program mode, and to
advance the program function to
the next menu.

The enter button is used to store
the program function parameter into
memory.  Once a value is stored in
memory, the ptc will remember that
value even if the power is turned off
at the thermostat for several years.

When a parameter is being stored,
the led display will flash in a
circular fashion. You will notice that
when changing the setpoint, the led
display will do a circular flash.  This
is because a new setpoint is being
entered into the memory of the ptc.

In program mode if this flash does
not occur you have not stored that
parameter into memory!  if you do
not wish to change the value in me-
mory of a parameter, simply do not
press the enter button and push
the menu button to go to the next
program level.

Night Set Back  Indicator: When NSB
is ON, the NSB Indicator will light.  If
you wish to locally override the NSB,
momentarily push either the UP or
DOWN button.  NSB will be cancelled
for 2 hours and the NSB light will turn
off until the NSB is re-established.

hole for

mounting

 screw

temperature
and function

led display

up

 button

minimum

 position

HEAT

minimum

 position

COOL

night
set back
indicator

down
button

menu
button

enter
button

sensor
shunt
exterior / interior
modes

fig. #3

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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