Electronic Thermostat Installation; Field Connections - Carrier GZ024 Installation Instructions Manual

ELECTRONIC THERMOSTAT INSTALLATION

Field Connections

This section is intended as a quick reference only and should not
replace a complete review of thermostat Installation Instructions.
The GZ unit can be
non- -communicating with
non- -communicating thermostats.
User Interface
Match
(UI) to GZ
FE
Communicating
Furnace
Non ---communicating
Fan Coil
Non ---communicating
Furnace
NOTE: Matching geothermal systems with non- -communicating indoor models will
not offer full communicating functions from the UI.
Communicating
User Interface (UI) is designed to self- -program with the GZ unit
when connected to the ABCD connector on the UPM board. Only
two (2) wires are needed from the UI for the AB connections since
the GZ unit has a transformer for the 24v (see Fig. 12 and 13).
NOTE: It is always a good idea to run extra thermostat wires
during installation in the event of faulty wires, etc.
Communicating System Tips:
S The GZ units include an Outdoor Air Temperature (OAT) sensor
in the literature packaging. Refer to Table 9 for thermostats that
can incorporate this OAT and the thermostat instructions for
wiring.
S The GZ unit must be used with Wall Control version 13 or newer
software for communicating connections.
S Energy tracking is not available for the geothermal products at
this time for the Wall Control V13 software. However, future UI
software versions will have this feature.
S Wi- -Fi capability will be available with the Wi- -Fi Wall Controls
SYSTXCCITC01, SYSTXCCITW01, SYSTXBBECC01,
SYSTXBBECW01.
S To enter the Wall Control service mode hold the service cap in the
main menu for about 10 seconds until it turns green then release.
S The last 10 system faults can be found in the service screens.
Flash codes on the UPM board flash only an active code with
series of short and long flashes on the amber LED. A code 37 will
appear on the UPM LED as 3 short flashes followed by a pause
then 7 long flashes followed by another pause and repeats this
series. The Wall Control will display text on the screen for the last
10 events.
S Exit service screens by selecting "Done".
Non- -Communicating
On non- -communicating system, the two- -stage control receives
24VAC low- -voltage control system inputs through the Y1, Y2,
and O connections located at the bottom of the control board (see
Fig. 14.) On a non- -communicating system, output W1 is
connected to the control board for auxiliary heat. For
Non- -communicating, any standard multi- -stage HP (3 heat, 2 cool)
thermostat is acceptable. Non- -communicating will not have full
features. Refer to Table 9 for the recommended communicating
and non- -communicating thermostats.
installed as communicating
UI communicating or standard
Standard 2--- stage
Thermostat to GZ
Yes No
Yes Yes
No Yes
No Yes
Communicating System
Wall Control
A
or
B
C
D
S1
Optional Remote
Room Sensor
S2
Fig. 12 - - Universal Two- -Wire Connection
Communicating System
Wall Control &
Smart Sensor(s)
A B C D
A B C D A B C D
Damper
Control
module
Fig. 13 - - Zoning Connection for Communicating Indoor Unit
with 2- -Stage Communicating split geothermal unit
Thermostat
R
G
Y1
Y2
C
O
Fig. 14 - - Connection for Non- -comm. Furnace / Fan Coil
Table 9 – Recommended Thermostats
Carrier Systems:
Infinityr Touch Wall Control
SYSTXCCITC01*
SYSTXCCITW01*
SYSTXCCITN01*
Performance™ Series
TP---PRH01
TP---NRH01
TP---PHP01
Corr Wi --- Fi™ Thermostat
{ TP---WEM01
* Version 13 or later software
{ No OAT sensor connection. The OAT is retrieved from the Internet.
The GZ unit is shipped with one OAT sensor TSTATXXSEN01 ---B
Note: Any of the model numbers above may be followed by a revision
letter such as " ---A".
12
Communicating
Variable-Speed
Furnace / Fan Coil
Green - Data A
Green
A
Yellow - Data B
Yellow
B
White - COM
C
Red - 24VAC
D
ABCD
HUM
Humidifier
Connections
Connection
COM
24V
OAT
Sensor
OAT
(Optional)
Communicating
Indoor Unit
Green
A
Yellow
B
White
C
Red
D
Humidifier HUM
Connection
COM
24V
OAT
Non-Communicating
Furnace / Fan Coil
R
G
Y1
Y2
C
FV/FE Only
O
(not required for
furnace application
Bryant Systems:
Evolutionr Connex™ Wall Control
SYSTXBBECC01*
SYSTXBBECW01*
SYSTXBBECN01*
Preferred™ Series
T6 ---PRH
T6 ---NRH
T6 ---PHP
Housewiser Wi --- Fi™ Thermostat
{ T6 ---WEM01
Communicating
HP
B
C
D
A150168
Communicating
HP
A
B
C
D
OAT
Sensor
(Optional)
A150169
HP
Y1
Y2
C
O
A150461