2. O
pen t
he
water i
nlet v
alve a
nd f
lood t
he c
oil.
turn
on
the p
ower
and
turn the unit on in cooling
.
1. A
fter c
onnecting
the
water i
nlet
and
outlet p
ipes t
o t
he m
ain w
ater s
upply l
ines,
4.
When no air bubbles appear, c
lose
the
purging v
alve
(Clockwise)
When
performing t
his,
take c
are
not
to
touch
the
3. C
heck a
ll c
onnection
s
f
or w
ater
leak,
if n
o
leak
is
found
, loosen
(1
turn, c
ounter
with a
n
open e
nd w
rench (
No.10), t
hen p
urge
the
trap
ped
air i
nside t
he c
oil.
clockwise) t
he
purging v
alve b
y
using
standard h
ead s
crew
driver
and s
upport
5. O
pen
the
water
outlet
valve.
* A IR PURGING
electrical
parts.
1. I
nstall
the
frame
grille i
n t
he
opposite o
rder o
f
"HOW T
O R
EMOVE T
HE
FRAME
GRILLE".
When t
he
frame g
rille
is r
emoved a
nd
mounted a
gain, t
ake t
he
following a
ctions:
Before
fastening t
he
mounting s
crews
be s
ure t
o
hook
the t
op i
nside l
ock
of
t
he f
rame
grille.
* HOW T O INSTALL T HE FRAME GRILLE ON T HE FANCOIL UNIT
9
INSTALLATION P
ROCEDURE
INSTALLATION
PROCEDURE
Screw
Screw C
overs
Open e
nd
wrench
(No.10)
screw D
river
Standard
head
OPEN
Base P
an
Terminal
Block
Control
Box
Frame
Grille
Control
Box
Cover
Wire
clamp
MODEL: M
HQWW-09-H-1-U, M
HQWW-12-H-1-U, M
HQWW-18-H-1-U
1
2
3 4
5
6
7
From W
CV
twisting
them t
ogether.
Hold
the
two w
ires s
teady
the e
nd
of
connecting
wire.
Connect t
he
two w
ires b
y
There a
re t
hree e
xtention w
ires
(A
WG1
8
Blue, R
ed a
nd Y
ellow
color) c
oming o
ut f
rom
from o
ne h
and a
nd
Fig.1
Fig.2
until i
t
become t
ighten.
Fig.4
rotate t
h
e
wire
connector
Strip
the
insulation 1
/2"
from
figures.
Connect
the
two e
xtention
wires
in
t
o W
ater
Control
Valve
as s
hown o
n
the
Water c
ontrol
valve e
xtention
wires A
WG18.
Basep
an
unit
from
top.
connector
connector
to
protect
Insert
the w
ire
Use
the
supplied
wire
From f
an coil
unit
Fig.3
the b
ear e
nd.
the
fan coil
terminal b
lock
for
the w
ater c
ontrol v
alve (
please
refer
to
the w
iring
diagram).
Terminal
wires
to
controller
Connecting
Inter-connection
Read
these
instructions
thoroughly b
efore
installing p
roduct.
Failure
to
follow
th
ese
i
nstructions
could
damage
the
product
or c
ause
a h
azardous c
ondition. C
heck t
he v
oltage a
nd
current
* INSTALLATION
ratings
to
ensure
tha
t
it
is
suitable f
or
your
application. Installer
must
be
a
trained,
experienced s
ervice
technician. C
heck
product
for
proper o
peration a
fter i
nstallation.
14
Extension w
ires
Block
wires
* WIRE CONNECTION T O T HE T ERMINAL BLOCK
THERMOSTAT
CONTROLLER
INSTALLATION
GUIDE
Mount
the
thermostat a
pprox. 5
ft.
(
1.5m) a
bove t
he
floor
in
a
location t
hat
is
free f
rom d
irect
sunlight,
heat
from a
ppliances, h
ot o
r c
old a
ir f
rom
ducts, c
oncealed
pipes
and c
himneys,
* MOUNTING LOCATION
and d
rafts o
f d
ead s
pots
behind d
oors
or
in
a
corner. D
o n
ot m
ount o
n
exterior
w
all, if
possible. F
ailur
e
to
locate
thermostat m
ounting
as
indicated m
ay r
esult
in
poor
temperature
control.
MHQWW-24-H-1-U &
MHQWW-36-H-1-U
1/2”
