Dimplex CAB15AR Bedienungsanleitung PDF herunterladen (Seite 5)

Water connection

Models designed for use in conjunction with a low pressure hot

water supply should be individually connected (in a parallel

circuit) to the flow and return pipe-work. Connections (see ‘a’ in

Fig. 5) are: ½” BSPT (CAB series) and ¾” BSPT (DAB series)

and isolation valves (see ‘b’ in Fig. 5) should be fitted as close

to the air curtain connection points as possible. For

commissioning, air bleed valves (see ‘c’ in Fig. 5) are fitted to

the coil, which can be accessed by removal of the bottom panel

and intake grille assembly - see Fig. 4. The drain (see ‘d’ in Fig.

5) can also be accessed when the intake grille assembly and

bottom panel are removed.

Maximum water supply conditions are 125ºC and 8 bar

(0.8MPa).

To aid installation, the water coil connections may be moved to

either side of the appliance. By removing the water coil and

appropriate knockouts the water coil can then be re-inserted

into the required orientation. This procedure should be carried

out before mounting the appliance.

Electrically heated variants

Operation using switch box - CABC1

Switch on electrical supply to the air curtain. Switching the switch

marked ‘I’ energises the fan. The fan switch allows either low or

high fan speeds to be selected. The heat selection switch allows

heat setting to be chosen.

 - Off

 - ½ heat

 - Full heat

The A / M (auto / manual) switch allows for manual over-ride of a

door switch if fitted.

The unit should always be switched OFF using the switch box

control, and not by mains power supply interruption.

When the unit is switched off (via the switch box) the fan will run

on for 1 minute without heat to discharge any residual energy

from the heating elements.

When first turned on the control will run through a system check.

The selected settings will be reached and maintained after a 3

minute period.

Thermostatic control

A capillary type thermostat is factory fitted within the unit, as per

‘C’ in Fig. 7, giving a selection scale of 0-40ºC. When the

thermostat operates, the power output will reduce depending

on the switch setting.

 - Fan only - No effect

 - Half Heat - Heater will reduce to Fan only

 - Full Heat - Heater will reduce to Half Heat

To override the thermostat, first Isolate the supply to the heater.

Remove the connection on terminal ‘1’ of the thermostat and

reconnect it onto the piggy back connection on terminal ‘C’.

Door switch control (Electric models)

By including a door switch in the circuit (as per ‘D’ in Fig. 7) the

air curtain will respond to door openings as follows:

(1) Door opening will energise the air curtain at the set

conditions (switch box settings).

(2) On door closure operation will continue at the set conditions

for a further 1 minute.

(3) Between 1 minute and 2 minutes from door closure, set

back operation, ½ heat (if heat selected) and ½ fan will

activate.

(4) Between 2 minutes and 3 minutes, the fan only (½ speed)

shut down cycle will be engaged.

(5) After 3 minutes, the air curtain will return to a dormant

state until the door is re-opened.

If the door re-opens during this 3 minute run on cycle, the

process will restart at (1).

Thermal Safety cut outs

The power supply to the heating elements will be interrupted if

one or a combination of the following abnormal events occur:

1. Air inlet or outlet grilles are obstructed.

2. Internal ventilation is impaired due to build up of dust

and fluff.

3. Blower unit stalls.

To reset the thermal safety cut-outs, access reset buttons as

shown in Fig. 9. Before re-setting the reason for activation must

be determined and corrective action taken.

Low pressure hot water heated / Ambient (fan

only) variants

Operation using switch box - CABC2

Switching the switch marked ‘I’ energises the fan.

The fan switch allows either low or high fan speeds to be selected.

The A / M (auto / manual) switch allows for manual over-ride of a

door switch if fitted.

The unit should always be switched OFF using the switch box

control, and not by mains power supply interruption.

When first turned on the control will run through a system check.

The selected settings will be reached and maintained after a 3

minute period.

Thermostatic control (optional)

A thermostatic regulation valve with a remote sensing bulb (not

supplied) can be positioned in the supply water pipe-work to

regulate the heat output.

Door switch control (Water heated & Ambient models)

By including a door switch in the circuit (as per ‘D’ in Fig. 8) the air

curtain will respond to door openings as follows:

(1) Door opening will energise the air curtain at the set

conditions (switch box settings).

(2) On door closure operation will continue at the set conditions

for a further 1 minute.

(3) Between 1 minute and 2 minutes from door closure ½ fan

set back operation will activate.

(4) After 2 minutes, the air curtain will return to a dormant state

until the door is re-opened. If the door re-opens during this

2 minute run on cycle, the process will re-start at (1).

Wiring Diagrams

CAB & DAB ‘E’ - Electric models - see Fig. 7

CAB & DAB ‘W’ / ‘A’ - Water heated & Ambient models - see Fig. 8

A - Master Module Link

B - 12VDC Feedback Signal to BMS (Unit Fault Check)

C - Thermostat

D - Door Switch (Optional)

E - Thermal Safety Cut-out Circuit

F - Elements

G - BMS Switches (Optional)

M - Motor

N - Switch box

For operation via switch box, all BMS switches as shown in Fig. 7

& 8 need to be OPEN CIRCUIT if used. Do not remove BMS links

on PCB.

For operation via BMS, switch box to be set as follows:

I/0 in O (Off) position

Heat selection switch to be in O (Off position)

Fan selection switch in either high or low speed position

O - Circuit Open

1 - Circuit Closed

X - Either Open or Closed

bms

1 2 3 4 5 6 7 8

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