1211.6—General entrapment protection requirements.
(a)
A residential garage door operator system shall be provided with primary inherent entrapment protection that complies with the requirements as specified in § 1211.7.
(b)
In addition to the primary inherent entrapment protection as required by paragraph (a) of this section, a residential garage door operator shall comply with one of the following:
(ii)
Reverse direction and open the door to the upmost position when constant pressure on a control is removed prior to operator reaching its lower limit, and
(iii)
Limit a portable transmitter, when supplied, to function only to cause the operator to open the door;
(2)
Shall be provided with a means for connection of an external secondary entrapment protection device as described in §§ 1211.8, 1211.10, and 1211.11; or
(3)
Shall be provided with an inherent secondary entrapment protection device as described in §§ 1211.8, 1211.10, and 1211.12.
(c)
A mechanical switch or a relay used in an entrapment protection circuit of an operator shall withstand 100,000 cycles of operation controlling a load no less severe (voltage, current, power factor, inrush and similar ratings) than it controls in the operator, and shall function normally upon completion of the test.
(d)
In the event malfunction of a switch or relay (open or short) described in paragraph (c) of this section results in loss of any entrapment protection required by §§ 1211.7(a), 1211.7(f), or 1211.8(a), the door operator shall become inoperative at the end of the opening or closing operation, the door operator shall move the door to, and stay within, 1 foot (305 mm) of the uppermost position.