HA71 Digital Gas Controller
Revision 3 (04/08)
HA71 Technical Manual
6-3
6.2 HA71N4 NEMA 4X Fiberglass Wall Mount Enclosure
The HA71N4 shown in Figure 6-2 is a fiberglass NEMA 4X wall mount enclosure. Seven, 8 channel I/O option PCB’s, such as analog input
or discrete relays, may be mounted inside this enclosure. It is suitable for mounting outdoors but an above mounted weather deflector shield
is recommended. Weight is approximately 17 pounds. Figure 6-3 provides important warning information concerning correct grounding
procedures for non-metallic enclosures. Conduit entries are not provided so installers may place entries as needed. Bottom or lower side
areas are recommended. Care must be taken to avoid drilling into circuit boards mounted inside the enclosure. Properly ground the enclosure
and follow national and local electrical codes.
Figure 6-2. NEMA 4X Wall Mount
Summary of Contents for HA71
Page 5: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 1 1 1 General Description ...
Page 9: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 2 1 2 Basic Operation ...
Page 31: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 4 1 4 System Diagnostics ...
Page 34: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual 5 1 5 Modbus RS 485 Ports ...
Page 42: ...HA71 Digital Gas Controllers Revision 3 04 08 HA71 Technical Manual 6 1 6 HA71 Enclosures ...
Page 49: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual A 1 A Ordering Information ...
Page 52: ...HA71 Digital Gas Controller Revision 3 04 08 HA71 Technical Manual B 1 B Warranty ...