7
Sales/Replacement Telephone 01604 762881
7.
PREPARATION & POSITIONING
7.1
DUCTING INFORMATION
7.1.1
It is an advantage to have all the compatible ductwork already installed and ready to connect to the
appliance spigots.
7.1.2
Ducting passing through unheated roof voids must be insulated. Ducting runs should be as straight as
possible and the horizontal exhaust ducting should always slope downwards from the Q-Vent Compact-L
unit.
7.1.3
The recommended types of ducting are:- rigid plastic and spiral wound duct.
7.1.4
For any exhaust duct passing through a roof use a suitable Vertical Terminal or Ridge Terminal. For exhaust/
supply terminals in high rise applications a purpose designed, high rise terminal MUST be used. For details
on Johnson & Starley ‘high rise’ terminal colours and sizes see Table 3.
* Ensure gravity flaps are removed
7.2
POSITIONING THE UNIT
7.2.1
Ensure there is adequate access for installation and maintenance. Ensure the selected electrical mains
wiring has as an isolator near by for servicing.
NOTE:
The appliance is for suspended applications only.
7.2.2
This unit is typically installed in a ceiling void, but if this is not practicable it can be positioned in the loft
or any other suitable location. Also make sure when choosing the location to take into consideration the
accessibility of the control, the exhaust exit position, the electrical services, and the required RH path for
the condense drain.
7.2.3
It is the responsibility of the installer to ensure that all aspects of the system design are taken into
consideration. The system is designed as a ducted unit and should only be used in ducted situations.
Ensure ductwork is supported throughout it’s length.
7.2.4
The unit has 4 connection spigots and each one is labelled. Ensure that the correct duct is connected to the
appropriate spigot.
7.2.5
Consideration must be given to access and servicing. The servicing of the fans and the cleaning of the heat
exchanger should be carried out annually. Filters are to be cleaned as required.
PLEASE NOTE:
A clear space of at least 500mm x 500mm is required to allow the cover to be removed and
provide sufficient access for maintenance.
7.3
SPIGOTS
7.3.1
The unit is supplied with 100mm/125mm spigots. For satisfactory operation of the unit, ensure ducting used
is as detailed on the design drawing. Any deviation from the design drawing could lead to noise increase
on boost.
NOTE:
In situations where it is either not possible or not desirable to use 125mm ducting, 100mm ducting can be
used but it MUST be noted, in ‘BOOST’ mode, might increase noise levels.
7.4
CONDENSATE
IMPORTANT:
At times the unit will produce condensate which MUST be drained away. The unit is provided
with a drain connection.
7.4.1
When using the condense adapter, you
MUST
use Rigid PVC-U ¾”/19mm push fit pipe.
IMPORTANT:
DO NO USE A SOLVENT WELD on this joint. This joint
has
to be disconnected when removing
the heat exchanger for periodic servicing and maintenance.
7.4.2
When using 10mm flexible condense pipe, cut the condense adapter off and use the straight hose connector
supplied. Do not leave any kinks in the condense pipe.
7.4.3
The unit has a condense anti flood device built in.
NOTE:
Fan will stop and a red LED will flash once every 3 seconds if the condense drain path is blocked
and unit goes into anti flood mode.
TABLE 3. ‘HIGH RISE’ TERMINAL PART NUMBERS
FINISH
100mm
(4”)
123mm
(5”)
130mm*
(6”)
WHITE
1000-0004790
1000-00005350
1000-0005530
BEIGE
1000-0004810
1000-0005370
1000-0005550
BROWN
1000-0004800
1000-0005360
1000-0005540
TERRACOTTA
1000-0004820
1000-0005380
1000-0005560
