Contained within the text of the manual,
the words ‘
Caution
’ and ‘
Warning
’ are used to
highlight certain points.
CAUTION
Caution is used when failure to follow or
implement the instruction(s) can lead to
premature failure or damage to the heater
or its component parts.
Warning is used when failure to heed or
implement the instruction(s) can lead to
not only component damage, but also to a
hazardous situation being created where
there is a risk of personal injury.
1. Introduction
Isolate any electrical supply to the heater
and controller before proceeding.
1.1 Basic Information
The instructions in this manual apply
to the RHC 4000(M) DJL gas-fired/
fan-assisted warm air heaters, installed
at an operational ambient temperature
between -15°C and +45°C.
The appliances must be installed in
accordance with the rules in force.
Before installation, check that the
local distribution conditions, nature
of gas and pressure and adjustment
of the appliance are compatible.
A permanent electricity supply of 230
volts, 50 Hz, single phase is required.
• Gas categories I2H, I2E, I2E(S)B, I2E(R)B,
I2Esi and I2EK.
• RHC 4000(M) DJL model suitable for
indoor air handlers only (when installed
where the height above floor level is greater
than 1,8 meters measured to the underside
of the appliance they may be used as a
garage air heater).
Model RHC 4000(M) DJL heaters are
approved for:
Type B22 / B52 – vertical vent (through the
roof) or horizontal vent (through the wall)
All models & sizes are available for use with
natural gas with operating temperatures
between -15°C and 40°C.
These instructions are only valid for
appliances designed to operate in Europe.
If the country code and gas category on
the appliance data label does not match
the country of installation or the country
codes and gas category’s as shown
in this instruction manual, it will be
necessary to contact the distributor or
manufacturer to provide the necessary
information for the modification of
the appliance to the conditions of
use for the country of installation.
Check that the local distribution
conditions of electricity supply,
type of gas and pressure of the
appliance are compatible.
The total installation should be installed
in accordance with the rules in force,
relevant National Standards, local
regulations, and Codes of Practice.
When the external control calls for heat,
an electronic control begins the ignition
sequence to provide for a safe start.
Under normal conditions the fan motor
runs constantly and after a call for
heat it switches the heater on through
a room or duct stat. However, in some
applications, about 30 seconds after the
call for heat, the fan control relay will
activate the fan motor of the air handler.
The electronic control will supervise the
flame during the entire heating cycle to
ensure safe operation. When the required
room temperature is reached, the main
burner will shut down leaving the fan
running to cool down the heat exchanger
After approximately 45 seconds, the fan
delay relay will turn off the fan (if wired).
All models may only be used
when installed within a closed
compartment, e.g. an air handler.
Dimensions: we refer to the
figures 1 through 9.
All dimensions are in mm
(25.4mm= 1 inch)
1.2 Warranty
Warranty is void if:
a. Model RHC 4000(M) DJL heaters are
installed in atmospheres containing
flammable vapors or atmospheres
containing chlorinated or halogenated
hydrocarbons or atmospheres containing
any silicone, aluminum oxide, etc., that
adheres to spark ignition flame sensing
probes.
b. The installation is not in accordance
with these instructions.
c. The maximum air flow through the heat
exchanger tubes is not respected (see
section 3.4).
d. The required minimum air delivery is
not respected (see table 1).
e. The duct dimensions do not comply with
the prescribed dimensions (see table 5)
f. The inlet temperature (measured at the
heat exchanger inlet) is lower than the
value stated on the chart (see table 8:
dew point occurrence chart).
WARNING
5
