Remak DoorMaster C1 Installation And Operating Instructions Manual page 21

Air Curtain Chaining
Observing all instructions of the Installation Instructions
Manual, suspension dimensioning and instructions for
electrical wiring, the air curtains can be chained into any
configuration (of the same air curtain line and type of
heating), and thus can cover wider door openings.
After the wiring has been performed in accordance with
below-mentioned instructions, the entire assembly of
chained air curtains can be controlled using a common
control element (controller, thermostat) connected to the
first air curtain in the assembly of chained air curtains,
respectively to the external fan switching block if C1
air curtains are chained. Then the air curtain assembly
control is carried out using the same principles as a sin-
gle curtain.
Performance and Assembly
For a door opening width greater than a single air cu-
rtain can cover, several air curtains (of the same line)
can be installed in series so their total length will corre-
spond to the door opening width. For example, one 1.5
m air curtain and one 1 m air curtain can be used for a
door opening width of 2.5 m. To ensure the assembly is
performed as well as possible, both mechanically and
visually, it is necessary to use connecting kits (DM SS
- accessories) and observe the installation instructions;
thus the mutual fitting and narrowest gapping of air cur-
tains as well as enforcement of the entire assembly will
be achieved.
Figure 31 – Mechanical Connection of C1 series
C1 Air Curtain Chaining
Mechanical Connection
Mechanical connection of C1 air curtains can only be
performed using a connecting kit. The connection can
only made on the upper side, and it ensures a fixed di-
stance between the air curtains. It is necessary to use
one connecting kit (DM SS C1 accessory) for each co-
nnection. The air curtains can be chained by their side
walls.
Suspension Procedure:
Suspend the air curtains separately following the

procedure on page 5 and the following pages. When
suspending, ensure the air curtains are on the same ho-
rizontal level.
Connect the suspended air curtains using a spacer

connection (DM SS C1 accessory) and the delivered
screws. The connection must be carried out so that the
air curtains will not touch each other and a minimum
gap of 2 mm (at the side wall bulging) will be left be-
tween them.
The electrical interconnection of the connected air

curtains is only possible by external cabling.
Wiring
a) Fan Control
The maximum number of air curtains without speed
control is limited by the dimensioning of the used switch
- air curtains are connected in parallel (e.g. max. 2 air
curtains can be connected to the ABB TANGO #1 at a
time) otherwise an external contactor must be used.
Chained air curtains with a three-stage speed control
(C1 .../TR) can only be controlled using an external
switching and separating element - relay, contactor -
one pole for each output stage for each air curtain (the
same output stages are connected in parallel). Then the
individual relays or contactors (respectively assemblies)
can be switched using a common three-stage controller,
see figure #30.
b) Electric Heater Control
To ensure common control (switching) of the electric
heaters of multiple air curtains, the type version of air
curtains is delivered (designated by the letter M) which
enables simplified common control of the heating. Thus,
2 air curtain versions are distinguished by design, de-
signation and code:
A basic air curtain (a standard version for individual

installation); it can only be installed as the last air cur-
tain within the chained assembly.
An air curtain enabling connection of a subsequent

chained air curtain (the first up to last but one air curtain
in the air curtain chain) - "M" at the end of its type de-
signation.
This version enables direct connection of the subse-
quent air curtain's electric heater control to the installed
terminals (XS) allowing the switching of chained electric
heaters. (Note: This does not influence the fan common
switching, and it must be ensured by an external contro-
ller, see above.)
c) Air Curtains with a Water Heater and Thermoelectric
Control using a Room Thermostat
Standard air curtain versions and control accessories
can be used to control the water heaters of chained air
curtains. The thermostat can control as many valves as
is allowed by its electric output dimensioning, otherwise
an external switching element (relay) must be used.
The valve actuators are switched in parallel. Instead
of individual valves and actuators for each exchanger
(air curtain), it is possible to design a valve for common
water supply to multiple air curtains (the valve must be
properly dimensioned in accordance with the required
discharge and it must be equipped with the correspon-
ding actuator).
Air curtains
21