Advertisement
Quick Links
CONTROL PANEL
PYROBOX
FOR SNOW MELTING SYSTEM
PLEASE READ THIS MANUAL AND THE SAFETY WARNINGS CAREFULLY BEFORE INSTALLING
INSTALLATION NOTES
1. Familiarize yourself with the markings, warnings, components
and terminology.
2. The PYROBOX power boxes and its accessories must be
installed by a qualified electrician in accordance with local
regulations and the requirements of the NEC (NFPA 72) and
CEC part 1.
3. WARNING: Ensure the power is disconnected from all circuits
before mounting the power box and making any connections.
Contact with components carrying hazardous voltage can
cause electric shock and may result in severe personal injury
or death.
4. Installer must ensure the installation of approved discon-
nect means for all power supply circuits feeding this unit.
5. The power boxes are suitable for indoor wall-mounted instal-
lation only.
6. Ensure wiring according to the provided schematics using
copper conductors only.
7. Make sure the wire gauge (AWG) is suitable for the circuit
amperage draw, as specified in the NEC/CEC table 1.
8. Ensure that the main breakers (fuses) are suitable for the heat-
ing systems rating (80% load). Grounding means must comply
with local regulations and NEC/CEC.
THANK YOU FOR YOUR PURCHASE!
NEED ASSISTANCE? CONTACT STELPRO CUSTOMER SERVICE.
WWW.STELPRO.COM
CONTACT@STELPRO.COM
1-844-STELPRO
IMPORTANT INSTRUCTIONS
AND USING THE CONTROLLER AND SAVE IT FOR FUTURE USE.
SAVE THESE INSTRUCTIONS
PYROBOX3
PYROBOX3C
PYROBOX5
9. Ensure that the heating system/de-icing system connected to
this unit complies with the UL 499 or UL 515 and CSA 22.2 #
130.3 standards and is certified / listed by an NRTL.
10. Ensure that all wiring is rated for the application at 60°C
(140°F) as per UL 515 CSA 22.2 #130 clause 12 table 12.1.
11. Ensure that any holes punched for the conduit does not com-
promise the integrity of the enclosure ratings.
GROUND FAULT CIRCUIT INTERRUPTER (GFCI)
12. The ground fault interrupter/residual current detector installed
in this system is a non-class-A GFCI, intended for equipment
protection.
13. Familiarize yourself with its operation and required settings.
14. At the installation and commissioning stages, use a calibrated
milliamp meter to read and record the heating system's natu-
ral leakage.
15. Set the GFI/RCD to no more than 30 milliamps higher than
that of the reading. This step might have to be repeated a few
times, to avoid nuisance tripping.
16. The GFCI should be tested monthly. Please refer to the cali-
bration and testing instructions in appendix 1 of this manual.
OWNER'S
MANUAL
Advertisement
Summary of Contents for Stelpro PYROBOX3
- Page 1 8. Ensure that the main breakers (fuses) are suitable for the heat- ing systems rating (80% load). Grounding means must comply with local regulations and NEC/CEC. SAVE THESE INSTRUCTIONS THANK YOU FOR YOUR PURCHASE! NEED ASSISTANCE? CONTACT STELPRO CUSTOMER SERVICE. WWW.STELPRO.COM CONTACT@STELPRO.COM 1-844-STELPRO...
- Page 2 ABOUT The PYROBOX3/3C/5 power boxes together with the PYROCON12 • Switchable temperature scales (°F or °C) controller and interface panel, offer smart and easy control over the • Both automatic and manual modes PYRO snow and ice melting system. • Adjustable heater cycle and splitting times It can operate up to 4 snow melting zones and one auxiliary zone, with selectable sequencing method.
- Page 3 Upper limit Snow sensor sensor temp. sensor (by STELPRO) (optional) (by STELPRO) Heater load connection IMPORTANT ! If the heaters are connected in a star configuration, the neutral must pass through the internal current transformer ring and the external branch circuit protection.
- Page 4 Upper limit Snow sensor 50 A max. per pole 277 V, 30 A 120 V sensor temp. sensor (by STELPRO) max. (optional) (by STELPRO) Branch circuit protection and disconnect provided by installer 60 A, 600 V max. 30 A, 277 V max. IMPORTANT ! If the heaters are connected in a star configuration, the neutral must pass through the internal current...
- Page 5 PYROBOX3 HEATER LOAD CONNECTION CONNECTION TO THIRD-PARTY ICE/SNOW SENSOR (GIT-1 / CIT-1 / SIT/6E) - OPTIONAL • Provide contactors C1, C2, C3 and C4 with up to 277 VAC, 30 AMP. • 3-wire shielded cable • Make sure the wire gauge (AWG) is suitable for the circuit •...
-
Page 6: Connecting Snow Sensors To The System
CONNECTING SNOW SENSORS TO THE SYSTEM The system can be configured to operate with 1, 2, 3 or 4 snow sensors. Zone 1 Zone 2 Zone 3 Zone 4 Each snow sensor must have a different MAC address to communicate with the main board. The PYROSESE snow sensors series includes 4 different part numbers;... - Page 7 OPERATING INSTRUCTIONS DISPLAY GREEN POWER LIGHT RED GROUND FAULT RESET LAMP AND BUTTON The green power light will be on when power is supplied to the unit (120 VAC). The red GROUND FAULT RESET light will be on when the internal GFCI is tripped. Press and hold the GROUND FAULT RESET button for 5 seconds to reset the unit.
-
Page 8: Technician Settings
TECHNICIAN SETTINGS USE THE TECHNICIAN SETTINGS MODE TO VIEW AND ADJUST THE FOLLOWING PARAMETERS: Temperature setpoint Low ambient temperature limit to stop heaters Energy saving, upper slab temperature limit to stop heaters Time delay before stopping the heaters ON time for manual mode Heater cycle / splitting time Sensor and heater control logic Snow sensor sensitivity... - Page 9 TEMPERATURE SETPOINT 1. Move DIP switch S1 located on the side of thermostat to ON Snow position to enter technician settings mode. detector 2. “P01” and the temperature setpoint will appear on the display. 3. Use the [+] and [-] buttons to adjust the temperature setpoint. Range: 19…45°F / -7…+7°C Ambient temperature...
- Page 10 TIME DELAY BEFORE STOPPING THE HEATERS Time delay hours 1. Press the [SELECT] and [+] buttons simultaneously. “P04”, “dL” and the time delay before stopping the heaters (Hold ON) will appear on the display. The hours will blink. 2. Use the [+] and [-] buttons to adjust the hours of the time delay. Range: 00...99 hours. Time delay Default: 00 hours hours...
- Page 11 “0,” “1,” “2” or “3” will appear on the display. 2. Use the [+] and [-] buttons to define the heater logic (model dependent) as follows: PYROBOX3 | Outputs 1, 2, 3 and 5 Outputs controlled Outputs controlled by Value...
- Page 12 Snow detection Snow sensor threshold NUMBER OF SNOW sensitivity SNOW DETECTION THRESHOLD SENSORS CONNECTED Snow sensor Snow sensor sensitivity sensitivity 1. Press the [SELECT] and [+] 1. Press the [SELECT] and [+] buttons simultaneously. “P88” buttons simultaneously. “P09” and the snow sensor threshold and the number of snow will appear on the display.
- Page 13 ENABLE/DISABLE ZONES 1. Turn the unit OFF. 2. While OFF, press the [+] and [-] buttons simultaneously for 10 seconds. 3. Press the [Select] button to select zone. Selected zone will flash. 4. Press the [+] and [-] buttons to enable/disable the selected zone. - Black icon and “ON”...
-
Page 14: Temperature Reading Errors
2. Heater 5, for all models, will be activated with or without PYROBOX5. The logic remains the same for PYROBOX3C, heater 4, depending on the “Heater output logic” parameter without heaters 3 and 4, and for PYROBOX3, without set in section P07. heater 4. -
Page 15: Appendix 1 Calibrating And Testing The Internal Gfci
% FULL SCALE Model dependent – see table (Default: 20%) CURRENT TRIP (AMPS) INDICATOR (%) GFCI TEST PYROBOX5 PYROBOX3/3C 0.01 The GFCI should be tested monthly. Press the red GFCI 0.02 TEST button located next to the R,C terminals inside 0.03 the box for three seconds to trip the outlet and break 0.04... - Page 16 (other If at any time during the warranty period the unit becomes defec- than that prescribed by Stelpro) or a use other than that for which tive, you must cut off the power supply at the main electrical the unit was designed;...
Need help?
Do you have a question about the PYROBOX3 and is the answer not in the manual?
Questions and answers