REMKO VRS Series - Manual (Page 5)

5
Heater applications
The directly fired hot air heaters
supply instantaneous heat.
The heaters are designed exclu-
sively for industrial and commercial
use.
The heaters can be fitted with inlet
and outlet air ducts with appropri-
ate dimensioning.
There are generally no operating
restrictions with regard to the site
of installation.
Heater applications also include:
■ Heating workshops
■ Heating warehouses
■ Heating exhibition halls
■ Heating fair halls
■ Heating light-weight construc- Heating light-weight construc-
tion halls
■ Heating showrooms
■ Heating in horticulture and
agriculture
Mode of operation
After switching on the heaters by
setting the switch to the „Heat“ or
„I“ position, the forced-air burner
starts.
The „Burner“ indicator light on the
control box lights up for control
purposes in the case of the 400V
heater types.
The combustion chamber with
heat exchanger is now heated.
After reaching the set tempera-
ture, the supply air fan switches on
automatically.
The „Fan“ indicator light on the
control box lights up in the case of
the 400V heater types.
Hot air is blown out.
When using a room thermostat,
the described sequence is auto-
matically repeated depending on
the heat requirement.
All heater functions take place
fully automatically and are reliably
monitored by means of the triple
function combination controller
and burner relay (integral part of
the force-air burner).
After switching off the heater via
the switch or room thermostat,
the supply air fan continues to run
until the combustion chamber and
heat exchanger have cooled down
and subsequently switches off
automatically.
In the event of irregularities or
extinguishing of the flame, the
burner is shutdown by the burner
relay and interlocked.
The fault indicator light of the
burner relay and the „Burner“
fault indicator light on the control
box light up in the case of the
400V heater types.
Restarting can only take place after
manual release of the burner relay.
The safety temperature limiter
(STB) interrupts the burner func-
tion on overheating.
Manual release of the STB can take
place only when the heater has
cooled down.
The fan motor in the case of the
400V heater types is monitored
by means of a thermal overcurrent
relay.
On motor overload, operation is
interrupted by the relay and the
red „Fan“ fault indicator light on
the control box lights up.
Release is only possible after reset-
ting the relay in the control box.
The heaters must never be
disconnected from the mains
supply before the cooling
down phase has ended (except
in emergency situations).
AttENtION AttENtION
The heaters are intended
exclusively for industrial and
commercial use. They are not
intended for domestic heating
or similar. NOtE
Before releasing the burner
relay or overcurrent relay,
the cause of shutdown must
always be determined first.