Honeywell Excel 10 Installation Instructions Manual page 2

EXCEL 10 W7754K,P,Q FAN COIL UNIT CONTROLLERS
MOUNTING
All models have the same dimensions (W x L x H =
110 x 180 x 60 mm) (see Fig. 2) conforming to IP20 (without
optional terminal protection cover) or IP30 (with optional
terminal protection cover; width is then 130 mm).
59.5
Fig. 2. Excel 10 W7754 dimensions (in mm)
The Excel 10 W7754 FCU Controller is suitable for mounting
on a standard rail (DIN EN 50022-35 x 7,5), on walls/ceilings,
as well as for installation in wiring cabinets or fuse boxes.
DIN Rail Mounting/Dismounting
screwing nose
(oval hole)
cable binders
eyelet for
cable binder
screwing nose
stirrup; pull to
(oval hole)
dismount from rail
Fig. 3. Housing base (view from below)
The Excel 10 W7754 FCU Controller can be mounted onto
the DIN rail simply by snapping it into place. It is dismounted
by gently pulling the stirrup located in the base of the housing
(see Fig. 3). When mounted on a DIN rail, the unit must be
secured in place with a stopper to prevent sliding.
EN1B-0304GE51 R0306C
90
110
130
screwing nose
(round hole)
eyelets for
eyelets for
cable binders
screwing nose
(oval hole)
Wall/Ceiling Mounting/Dismounting
The Excel 10 W7754 FCU Controller can be mounted on
walls or ceilings in any desired orientation. In the case of
ceiling mounting, however, it should not be operated at
ambient temperatures exceeding 50 °C. The unit is mounted
by inserting 3.5-mm dowel screws through the corresponding
screwing noses.
round hole
(diameter: 4 mm)
Fig. 4. Drilling template (view from above)
When equipped with the optional terminal protection cover
(see section "Terminal Protection Cover" on page 7), the
Excel 10 W7754 FCU Controller conforms to IP30.
After mounting the Excel 10 W7754 FCU Controller onto the
wall or ceiling, provide for cable access by snipping out the
terminal protection cover's cut-out tabs and snap it (by hand)
into place on the housing. To remove the cover, place a
screwdriver in the leverage slot and pry it loose.
Terminal Assignment
The Excel 10 W7754 FCU Controller features two rows of
terminal blocks located on one side for the connection of
cables to the relays, inputs, and outputs as well as for
connecting the removable power supply terminal plug and
removable L W
ON ORKS
NOTE: All high-voltage terminal blocks are orange-colored.
Depending on the given hardware model, the controllers have
different power supplies and are equipped with different
numbers of triac outputs, relay outputs, etc. See Table 1 on
page 3.
Every Excel 10 W7754 FCU Controller is therefore equipped
with a terminal assignment label on the top of the housing
(see Fig. 1 on page 1). This label is an adhesive sticker
displaying the maximum complement of I/O's. Terminals not
present in a given model are indicated by dotted lines.
NOTE: According to VDE guidelines, it is not allowed to mix
low-voltage and high-voltage signals on the relays.
See also Table 3 on page 6.
2
154 mm
oval hole
(4x7 mm)
terminal plug.