TZ-3 TOTALZONE® ZONE CONTROL PANEL
11 68-0223-2
.
Stages Based On Number of Zones Calling
The thermostat controls the first sta
e of heat or cool. The
second sta
e of heat and cool and the third sta
e of heat are
ener
ized b
the
ercenta
e of zones callin
. See Table 4.
Set the DIP switches as follows:
See Table 4 to determine the number of zones re
uired to
activate sta
es of e
ui
ment based on the number of zones in
the s
stem. Sta
in
is based on the zones available in the
s
stem, not the number of zones used for the
articular
a
lication. As zones satisf
, sta
es 2 and 3 dro
out.
Conventional
R,W,Y,G
heat/cool thermostats can be used
with the TZ-3 to control sin
le or multi-sta
e
as, electric or oil
s
stems and heat
um
s with auxiliar
heat. The
anel can
be confi
ured to control second sta
e heat and cool and third
sta
e heat usin
a 5-30 minute
anel, or sta
in
can be
controlled b
the
ercenta
e of zones callin
. The O and B
e
ui
ment terminals are ener
ized for chan
eover use with
heat
um
s.
HEAT PUMP THERMOSTATS WITH SINGLE Y OUTPUT
Heat
um
thermostats can be used if thermostat control of
2
nd
sta
e is desired. Thermostats that have a sin
le Y
terminal for first sta
e heat and cool can be used. When
selected, all thermostats must be similar.
If the thermostat ener
izes O on a call for cool, DIP switch 7
must be set to On and the O thermostat wire connected to W
on the thermostat connections for that zone. If the thermostat
ener
izes B on a call for heat, DIP switch 6 must be set to On
and the B wire connected to W on the
anel. In either case,
the O is alwa
s ener
ized to the e
ui
ment in coolin
, and the
B is alwa
s ener
ized to the e
ui
ment in heatin
.
IMPORTANT
Be sure DIP switches 6 and 7 are never both in the
On position.
HEAT PUMP THERMOSTATS WITH SEPARATE Y1 AND W1
Use heat
um
thermostats with se
arate Y1 and W1
terminals for first sta
e heat and cool. Kee
DIP switches 6
and 7 in the Off
osition when thermostat O or B wire is not
used.
Emer
enc
heat is defined as usin
an auxiliar
heat source
without usin
the heat
um
. When the Em Heat switch or a
thermostat
uts the
anel in the emer
enc
heat mode, the
heat
um
is locked out and calls for heat are sent to the E
terminal.
A heat
um
thermostat can also control emer
enc
heat
from the thermostat s
stem switch. An L terminal ener
ized
durin
the emer
enc
heat mode is re
uired. The
recommended heat
um
thermostats all have hot L
terminals. See Table 1.
The two sta
e Em heat
um
er connects W2 and E. Jum
er
both
ins to ener
ize the W2 e
ui
ment on a call for
emer
enc
heat. When E is a different source of heat than
W2, remove the
um
er
for exam
le, two-sta
e heat
um
with electric heat stri
auxiliar
heat
. The
um
er is located
below the e
ui
ment terminals on the lower-left corner of the
anel.
Use multi-sta
e thermostats to control two sta
es of heat via
W1 and W2 thermostat terminals. Control the third sta
e of
heat throu
h the sta
e timer built into the
anel. Control the
second sta
e of coolin
with the timer.
Manual and Automatic Changeover Thermostats
Automatic chan
eover thermostats
rovide automatic
chan
eover b
zone. Manual chan
eover thermostats heat or
cool based on the mode of each zone thermostat.
DIP Switch Number Status
1 Off
5 On
DIP Switch Number Status
1On
5Off
Table 4. Staging by Percentage of Zones Calling.
Number of
Zones in
System
Number of Zones Required
2nd Stage
Heat
3rd Stage
Heat
2nd Stage
Cool
32 32
42 33
52 43
63 54
73 54
83 65
94 75
10 4 7 6
11 4 8 6
12 5 9 7
