Advertisement
1. Introduction
This document contains safety, installation, operation, maintenance, and troubleshooting information for
model CXH-A/B unit heaters. Always check www.chromalox.com to ensure you have the latest revision of
this document. Revision date is listed on the cover page.
2. Safety
Read this First
Read this document in full prior to installation and commissioning
as it contain important safety and warning information that can
prevent injury, death, and damage to property. Model CXH-A/B
heaters meet the requirements of ATEX directive 2014/34/EU
and IECEx schemes. They are designed for space heating and
freeze protection in hazardous locations where potentially flam-
mable gasses may be found.
Routine preventative maintenance is required to ensure safe
and reliable operation.
Qualified Personnel
Installation and servicing should be performed by qualified person-
nel only. Qualified personnel should be familiar with electrical
installations in hazardous locations. Installation should be in ac-
cordance to the latest issues of the relevant parts of EN60079 as
well as local codes.
Electric Shock Hazard
Disconnect all power before installing or servicing heater. Failure
to do so could result in personal injury or property damage.
Flameproof Enclosures
Only remove enclosure covers when it can confirmed that flamma-
ble gases or dust are not present.
Flameproof Enclosures: This heater is designed for use in hazard-
ous locations and contains enclosures with flameproof joints. Un-
less otherwise noted, do not tamper with, repair, or modify enclo-
sures or the enclosures flameproof joints. If the flameproof joints
(threads or machined surfaces) appear to be damage, units must
be returned to Chromalox for repair. If stripped or damaged, re-
placement fasteners used on flameproof enclosures must be pro-
vided by Chromalox.
Indicator Lights: If the lens becomes damaged or detached then
the Indicator Lamp should be replaced.
© 2020 Chromalox,
Hot Surfaces
During operation, surfaces of the heater may become hot and
pose a potential burn risk. Prior to inspecting or servicing wait
until surfaces have cooled below 40°C.
Motor and Fan Blade
Motor and fan blade rotate at high speed during operation. Never
remove protective grill during operation. Before servicing ensure
that blade and motor have come to a complete stop.
When stored or used at -40C, inspect the motor prior to and after
use .
Noise Levels
During operation, model CXH-A/B heaters produce noise levels of
approximately 82dB. It is recommended that personnel working in
close proximity to operating equipment be equipped with hearing
protection to prevent hearing damage or loss.
Glycol Heat Transfer Fluid
Model CXH-A/B heater utilize propylene or ethylene glycol in the
sealed heat exchanger. Material Safety Data Sheets (MSDS) can
be located at www.chromalox.com.
Electrostatic Charging Hazard
The accumulation of dust and dirt on painted heater surfaces can
potentially lead to electrostatic charging. Per preventative mainte-
nance and repair section, only clean painted surfaces with a wet,
damp cloth.
Advertisement
