Chromalox CXH-A/B-07S Instrukcja instalacji, obsługi i konserwacji - Strona 16
Przeglądaj online lub pobierz pdf Instrukcja instalacji, obsługi i konserwacji dla Grzałka Chromalox CXH-A/B-07S. Chromalox CXH-A/B-07S 18 stron. Hazardous location forced-air heater
Drukuj stronę
Flameproof Enclosures
1. Do not attempt to repair any flameproof enclosures joints.
If joints or flame paths appear to be damaged contact
Chromalox immediately for replacement.
2. If threaded cover bolts or screws are damaged, they
must only be replaced with factory provided fasteners.
3. When securing enclosure bolts or screws, hand tighten
and follow table E for proper torque spec.
Table E – Flameproof Enclosure Bolt Torque
Enclosure
Control Enclosure
Thermostat Enclosure
Heating Element Terminal Housing
Replacing Contactor, Transformer, and Pilot Lights
1. To access electrical components, remove cover of main
control enclosure. Remember to follow all guidelines re-
garding electrical safety in hazardous locations.
2. Before disconnecting any wires, note the wiring con-
figuration and connections to terminal blocks and other
equipment.
3. Contactor and transformer use retaining screws attached
to a panel plate within enclosure. Once the wires are dis-
connected, the components can be removed by loosen-
ing screws holding them to the mounting plate.
4. To remove pilot lights, unscrew them from the enclosure
once wires are disconnected. Pilots lights are equipped
with fusing. Fuses must be replaced with equivalent rat-
ed models.
Flameproof Motor
1. Flameproof jpoints of the motor are not intended to be
repaired. If flameproof joints appear to be damaged, con-
tact Chromalox immediately for motor replacement.
2. The anti-condensationn heater can be activated only
when the motor is not powered.
Bolt Size
Bolt Grade
7/16-14 UNC-2A
SAE 8
5/16-18 UNC-2A
SAE 7
N/A
N/A
5. Only replace electrical components with those that are
factory supplied and have an equivalent rating.
Fuse Block
16
Bolt Torque
Bolt Torque
(ft-lbs.)
(N-M)
52
70.5
18
24.4
N/A
N/A