Honeywell TH5220D1003 Thermostat Wiring for Modine Unit Heaters and Duct Furnaces
This guide details the installation and wiring of the Honeywell TH5220D1003 thermostat for various Modine gas unit heaters and duct furnaces, including HD/HDB, HDS/HDC, PTS/BTS, PTC, PDP/BDP, and "D", "H", "I", & "O" series duct furnaces.
WARNING
- Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.
- All units must be wired strictly in accordance with the wiring diagram furnished with the unit. Any wiring different from the wiring diagram could result in a hazard to persons and property.
- All wiring must be done with a wiring material having a temperature rating of at least 105°C.
IMPORTANT
- 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.
- 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.
Installation and Wiring
Installation of wiring must conform with local building codes, or in the absence of local codes, the National Electric Code ANSI/NFPA 70 - Latest Edition. The unit must be electrically grounded in conformance to this code. In Canada, wiring must comply with CSA C22.1, Part 1, Electrical Code.
Thermostat Terminals Description:
The thermostat features terminals labeled Y2, W2 (2-stage ONLY), G, W, C, Y, R, Rc. The image shows a typical terminal block with these labels.
Wiring Diagram Selection
- For gas-fired unit heaters and duct furnaces (non-factory supplied blower) with model numbers listed, 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.
Table 1.1 - Thermostat to Unit Wiring
| Model | Wiring Terminals on Thermostat (1) | Location of Unit Terminals | |||||
|---|---|---|---|---|---|---|---|
| W2 (2-stage ONLY) |
G | W | C | R (2) | |||
| HD/HDB, HDS/HDC, PTS/BTS | W2 | G | W1 | C | R | Ignition control in unit control compartment | |
| PTC | n/a | G (2) | T2 | F | T1 | Terminal board on external junction box | |
| PDP/BDP | Gas valve high stage (HI, 3, or A) | F (4) | 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) |
(1) Not all terminal connections are used. Table only shows terminals that are used for required heating operation.
(2) The factory installed R to Rc terminal wire jumper is to remain in place.
(3) Verify that the buss bar on the G terminal is removed.
(4) Verify that the buss bar between the T2 and F terminal is removed.
Thermostat Function Program Selection
To enter thermostat setup mode, press and hold the Up arrow (▲) and FAN buttons until the display changes to setup mode. Use the Up (▲) and Down (▼) buttons to change settings, the NEXT button to advance to the next setting, and the DONE button to save the settings and exit from the setup mode.
- For gas-fired unit heaters and duct furnaces (non-factory supplied blower) with model numbers shown, refer to Table 2.1 for typical thermostat function settings.
- 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.
- For additional information, refer to the vendor literature supplied with the thermostat.
Table 2.1 - Typical Thermostat Function Program Settings (1)
| Function Number | Feature | Typical Setting | Description |
|---|---|---|---|
| 1 | System type | 3 | Single stage heat only with fan |
| 6 | 2 heat/2 cool conventional (cooling by others) | ||
| 7 | 2 heat/1 cool conventional (cooling by others) | ||
| 3 | Fan control | 0 | Gas or oil furnace - equipment controls fan in heating |
| 5 | Heat cycle rate (CPH) | 5 | For gas or oil furnaces of less than 90% efficiency |
| 3 | For furnaces of over 90% efficiency | ||
| 6 | Second stage heat cycle rate (CPH) | 5 | For gas or oil furnaces of less than 90% efficiency |
| 3 | For furnaces of over 90% efficiency | ||
| 9-12 | Cooling functions | (1) | (1) |
| 14 | Temperature display | 0 | Fahrenheit |
| 1 | Celsius | ||
| 15-26 | Cooling and emergency heat functions | (1) | (1) |
| 27 | Heat temperature range stops | 90 | Default value, can be set 40-90 in increments of 1°F |
| 80 | For PTC models, this setting must be changed to 80 | ||
| 28 | Cool temperature range stops | 50 | (1) |
(1) See Honeywell instructions that shipped with stat for more information and additional setting options.
Contact Information
Modine Manufacturing Company
1500 DeKoven Avenue, Racine, Wisconsin 53403-2552
"D" & "H" Model Series and Gas Fired Unit Heaters - Phone: 1.800.828.4328 (HEAT) Fax: 1.800.204.6011
"I" & "O" Model Series - Phone: 1.866.823.1631 (Toll Free) Fax: 1.800.204.6011
© Modine Manufacturing Company 2009. Litho in USA.
