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PYROBOX3
PYROBOX3C
PYROBOX5
PYROBOX
INS-PYROBOX-051219
WWW.STELPRO.COM
[email protected]
1-844-STELPRO
OWNER'S
MANUAL
THANK YOU FOR YOUR PURCHASE!
NEED ASSISTANCE? CONTACT STELPRO CUSTOMER SERVICE.
CONTROL PANEL
FOR SNOW MELTING SYSTEM
IMPORTANT INSTRUCTIONS
SAVE THESE INSTRUCTIONS
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.
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.
PLEASE READ THIS MANUAL AND THE SAFETY WARNINGS CAREFULLY BEFORE INSTALLING
AND USING THE CONTROLLER AND SAVE IT FOR FUTURE USE.
