Model
Wiring Terminals on Thermostat
Location of Unit
Terminals
W2
(2-stage ONLY)
G
W
C
R
HD/HDB, HDS/HDC,
PTS/BTS
W2
G
W1
C
R
Ignition control in unit
control compartment
W
iring T
erminals on Unit
PTC
n/a
G
T2
F
T1
Terminal board on
external junction box
PDP/BDP
Gas valve high stage
(HI, 3, or A)
F
T2
G
T1
Terminal board on
external junction box
DFG, IFG, DFP, IFP
Gas valve high stage
(HI, 3, or A)
Fan relay by others or to
factory relay wire removed
from T or H
T
G
H
Terminal board on
external junction box
(Digit 13=4 Only)
DFG, IFG, DFP, IFP, DFS,
IFS, HFG, OFG, HFP, OFP
3
Factory time delay relay
wire removed from 4
4
2
1
Terminal strip in control
compartment (Digit
13=0, 1, 2, or 3)
6-436.9
5H76292A
Honeywell TH5220D1003 thermostat wiring for gas
unit heaters HD/HDB, HDS/HDC, PTS/BTS, PTC, PDP/BDP, and
duct furnaces “D”, “H”, “I”, & “O” series
August, 2009
Wiring Diagram Selection
•
For gas fired unit heaters and duct furnaces (non-factory
supplied blower) with model numbers shown above, refer to
Figure 1.1 and Table 1.1 for correct unit to thermostat wiring.
•
For all other system units (factory supplied blower), refer to
the job specific unit wiring diagram provided with the unit.
•
For deviations to these wiring diagrams or the job specific
wiring diagrams, consult the factory.
Installation and Wiring
Installation of wiring must conform with local building codes,
or in the absence of local codes of the National Electric Code
ANSI/NFPA 70 - Latest Edition. Unit must be electrically
grounded in conformance to this code. In Canada, wiring must
comply with CSA C22.1, Part 1, Electrical Code.
Figure 1.1 - Terminals on Thermostat
(See page 2 for Thermostat Function Programming Instructions)
WARNING
1. Disconnect power supply before making wiring connections
to prevent electrical shock and equipment damage.
2. All units must be wired strictly in accordance with wiring
diagram furnished with the unit. Any wiring different from
the wiring diagram could result in a hazard to persons and
property.
3. All wiring must be done with a wiring material having a
temperature rating of at least 105°C.
ImpoRtANt
1. The use of this manual is specifically intended for a
qualified installation and service agency. All installation
and service of these kits must be performed by a qualified
installation and service agency.
2. These instructions must also be used in conjunction with
the Installation and Service Manual that originally shipped
with the appliance, in addition to any other accompanying
component supplier literature.
➀
Not all terminal connections are used. Table only shows terminals that are used for required heating operation.
➁
The factory installed R to Rc terminal wire jumper is to remain in place.
➂
Verify that the buss bar on the G terminal is removed.
➃
Verify that the buss bar between the T2 and F terminal is removed.
Table 1.1 - Thermostat to Unit Wiring
