Qmark ICG - Explosion Proof Convectors - Manual

1
G Series
(Model B)
Convector Heater for
Hazardous Locations
Type G-Series Convection Heaters are designed for use in
Class I, Div. I hazardous environments. Units without control
options are suitable for areas classified as Groups B, C & D.
Units with built-in controls can be supplied for Groups C and
D or B, C and D. Refer to classification stamped on heater
nameplate.
WARNING: To prevent ignition of hazardous atmospheres,
this heater should not be installed in areas where vapors or
gases having an ignition temperature less than 280˚C
(536˚F)(T2A) at 1.8kW, 3.6kW, 4.5kW, 7.2kW, 9.0kW or
180˚C (356˚F)(T3A) at 1.6kW, 3.2kW, 4.0kW are present.
WARNING: These heaters must not be operated in ambient
temperatures exceeding 40˚C (104˚F).
NOTE: Article 500 of the National Electric Code (NEC) out-
lines requirements for installation of electrical equipment in
hazardous (Classified) locations.
1. Only connect heaters to the same line voltage as on
heater nameplate.
2. All controls such as thermostat and contactor, when
required, must have the same explosion-proof rating as
heater.
3. Do not install one unit above the other.
4. Units must be mounted a minimum of 8” above the floor.
5. Heaters must be mounted on wall in a horizontal position
with terminal end at right only. Never recess heater into
wall.
6. All unit electrical installation fittings, conduit, wiring, and
seals must meet NEC and local codes for hazardous loca-
tions. External line fusing or circuit breaker protection is
required.
7. Hazard of Shock. Heater must be effectively grounded in
accordance with the National Electrical Code.
8. Failure to understand and follow these installation instruc-
tions and the “WARNING” notes contained therein may
result in severe personal injury, death, or substantial
property damage.
GENERAL
!
INSTALLATION
SAVE THESE INSTRUCTIONS
WARNING: Hazard of electric shock. Disconnect all power
before installing heater.
NOTE: Heaters can be mounted individually end to end.
Heaters can be mounted directly on any type of surface
(masonry, concrete, block, plastered walls, metal framework,
etc.) using appropriate hardware
1. Remove front panel by removing threaded bolts.
2. Locate desired heater position on wall.
3. Locate mounting holes for rear panel. Rear panel must be
a minimum of 8” from the floor.
4. Refer to Figure 1A, 1B, or 1C for mounting hole layout for
each cabinet size.
5. Drill a pilot hole in wall mounting surface at each mounting
hole location. Use a convenient small size drill.
6. Drill the mounting holes in accordance with size in Table 1.
Insert anchors where applicable.
7. Fasten rear panel to wall with screws noted in Table 1.
WARNING: Never operate heater with front panel off. Air flow
across heating elements requires the front panel in place.
Injury from hot heating element possible with front cover
removed.