TZ-3 TOTALZONE® ZONE CONTROL PANEL
9 68-0223-2
Waterfurnace: Wire this s
y
stem to the
p
anel as shown in Fi
g
.
17 exce
p
t use two isolation rela
y
s on com
p
ressor wires W1,
Y1 and W2, Y2.
Fig. 17. Water source heat pump wiring.

STARTUP AND CHECKOUT

After the installation is com
p
lete, verif
y
correct o
p
eration as
follows:
1. Place the Em Heat switch in the Off
(
down
)
p
osition.
2. Place the Zone-A-Lone switch in the Occu
p
/Remote
(
u
p)
p
osition.
3. Verif
y
that the DIP switches are set correctl
y
. See
Se
q
uence of O
p
eration section and Table 6 for correct
confi
g
uration.
4. Power u
p
the TZ-3 and set the thermostats so no zones
are callin
g
. The board then enters the Pur
g
e mode
where all dam
p
ers o
p
en and the fan o
p
erates for two or
three and one-half minutes
(
confi
g
urable
)
.
(
If there is
no Dischar
g
e Air Tem
p
erature Sensor connected to the
p
anel, the Idle LED flashes seven times before enterin
g
the Pur
g
e mode.
)
Then the Idle LED turns red and each
dam
p
er LED turns
g
reen.
5. Set zone one thermostat to heat and raise the set
p
oint
to call for heat. Verif
y
that the heat LED is red and zone
one dam
p
er remains
g
reen while the other dam
p
er LED
turns red.
6. Raise zone two set
p
oint to call for heat. Lower zone one
set
p
oint to sto
p
the call for heat to that zone. Verif
y
that
zone one LED turns red
(
it ma
y
be amber while movin
g)
and zone two LED turns
g
reen.
7. Re
p
eat for zone three.
8. Alternatel
y
, lower the set
p
oint to call for coolin
g
.Verif
y
that the
g
reen cool LED illuminates.
W2
W3
M19077
E
W1
O
G
W
B
G
R
2ND STAGE COMPRESSOR
1ST STAGE COMPRESSOR
AUXILIARY HEAT
Y1
C
Y2
O
Y1
Y2
R
2 STAGE
EM. HT.