Page 118 - 2018_IFC

BUILDING SERVICES AND SYSTEMS

604.5.4 Grounding. Extension cords shall be grounded 605.1.1 Refrigerants other than ammonia. Where a
where serving grounded portable appliances. refrigerant other than ammonia is used, refrigeration sys-
tems and the buildings in which such systems are installed
604.6 Unapproved conditions. Open junction boxes and
open-wiring splices shall be prohibited. Approved covers shall be in accordance with ASHRAE 15.
shall be provided for all switch and electrical outlet boxes. 605.1.2 Ammonia refrigeration. Refrigeration systems
using ammonia refrigerant and the buildings in which such
604.7 Equipment and fixtures. Electrical equipment and
systems are installed shall comply with IIAR-2 for system
fixtures shall be tested and listed by an approved agency and
installed and maintained in accordance with all instructions design and installation and IIAR-7 for operating proce-
included as part of such listing. dures. Decommissioning of ammonia refrigeration sys-
tems shall comply with IIAR-8.
604.8 Electrical motors. Electrical motors shall be main-
tained free from excessive accumulations of oil, dirt, waste [M] 605.2 Refrigerants. The use and purity of new, recov-
and debris. ered and reclaimed refrigerants shall be in accordance with
the International Mechanical Code.
604.9 Temporary wiring. Temporary wiring for electrical
power and lighting installations is allowed for a period not to [M] 605.3 Refrigerant classification. Refrigerants shall be
exceed 90 days. Temporary wiring methods shall meet the classified in accordance with the International Mechanical
applicable provisions of NFPA 70. Code.
[M] 605.4 Change in refrigerant type. A change in the type
Exception: Temporary wiring for electrical power and
lighting installations is allowed during periods of con- of refrigerant in a refrigeration system shall be in accordance
struction, remodeling, repair or demolition of buildings, with the International Mechanical Code.
structures, equipment or similar activities. 605.5 Access. Access to refrigeration systems having a
refrigerant circuit containing more than 220 pounds (100 kg)
604.9.1 Attachment to structures. Temporary wiring
attached to a structure shall be attached in an approved of Group A1 or 30 pounds (14 kg) of any other group refrig-
manner. erant shall be provided for the fire department at all times as
required by the fire code official.
604.10 Portable, electric space heaters. Where not prohib-
ited by other sections of this code, portable, electric space 605.6 Testing of equipment. Refrigeration equipment and
heaters shall be permitted to be used in all occupancies in systems having a refrigerant circuit containing more than 220
accordance with Sections 604.10.1 through 604.10.5. pounds (100 kg) of Group A1 or 30 pounds (14 kg) of any
other group refrigerant shall be subject to periodic testing in
604.10.1 Listed and labeled. Only listed and labeled por- accordance with Section 605.6.1. Records of tests shall be
table, electric space heaters shall be used. maintained. Tests of emergency devices or systems required
604.10.2 Power supply. Portable, electric space heaters by this chapter shall be conducted by persons trained and
shall be plugged directly into an approved receptacle. qualified in refrigeration systems.
605.6.1 Periodic testing. The following emergency
604.10.3 Extension cords. Portable, electric space heaters
shall not be plugged into extension cords. devices or systems shall be periodically tested in accor-
dance with the manufacturer’s instructions and as required
604.10.4 Prohibited areas. Portable, electric space heat- by the fire code official.
ers shall not be operated within 3 feet (914 mm) of any
combustible materials. Portable, electric space heaters 1. Treatment and flaring systems.
shall be operated only in locations for which they are 2. Valves and appurtenances necessary to the operation
listed. of emergency refrigeration control boxes.
3. Fans and associated equipment intended to operate
604.10.5 Group I-2 occupancies and ambulatory care
facilities. Where used in Group I-2 and ambulatory care emergency ventilation systems.
facilities, portable, electric space heaters shall be limited 4. Detection and alarm systems.
to those having a heating element that cannot exceed a 605.7 Emergency signs. Refrigeration units or systems hav-
temperature of 212°F (100°C), and such heaters shall only ing a refrigerant circuit containing more than 220 pounds
be used in nonsleeping staff and employee areas. (100 kg) of Group A1 or 30 pounds (14 kg) of any other
* 604.11 Abandoned wiring in plenums. Abandoned cables group refrigerant shall be provided with approved emergency
in plenums that are able to be accessed without causing dam- signs, charts and labels in accordance with NFPA 704. Haz-
age, or requiring demolition to the building, shall be tagged ard signs shall be in accordance with the International
for future use or shall be removed. Mechanical Code for the classification of refrigerants listed
therein.
605.8 Refrigerant detection. Machinery rooms shall be
SECTION 605 provided with a refrigerant detector with an audible and vis-
MECHANICAL REFRIGERATION ible alarm. Where ammonia is used as the refrigerant, detec-
tion shall comply with IIAR 2. For refrigerants other than
[M] 605.1 Scope. Refrigeration systems shall be installed in
accordance with the International Mechanical Code. ammonia, refrigerant detection shall comply with Section
** 605.8.1

2018 INTERNATIONAL FIRE CODE ® 85
Copyrighted © 2017 by, or licensed to, ICC (ALL RIGHTS RESERVED); licensed to UL, LLC pursuant to License Agreement with ICC. No further reproductions authorized or distribution authorized.
ANY UNAUTHROIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT; AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.