Dettson C45-1-D - Default Chapter; Table of Contents

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TABLE OF CONTENT
1- Safety regulation .............................................. 5
1.1- Safety labeling and warning signs ................ 5
1.2- Important information ................................... 5
1.3- Detection systems ........................................ 5
2- Introduction ....................................................... 7
2.1- Codes and standards ................................... 8
2.1.1- Safety ............................................................ 8
2.1.2- General installation ........................................ 8
2.1.3- Combustion and air ventilation....................... 8
2.1.4- Duct systems ................................................. 8
2.1.5- Acoustical lining and fibrous glass duct ......... 8
2.1.6- Gas piping and pipe pressure testing ............. 8
2.1.7- Electrical connections .................................... 8
2.2- Electrostatic discharge ................................. 8
2.3- Location ....................................................... 8
2.3.1- Location relative to cooling equipment ........... 9
2.4- Introduction .................................................. 9
2.4.1- Direct vent (2 pipes applications) ................... 9
2.4.2- Non direct vent (1 pipe) applications ............ 10
2.4.3- Ventilated combustion air applications ......... 10
2.5- Connecting to furnace ................................ 10
2.5.1- Combustion air piping .................................. 11
2.5.2- Exhaust vent piping ..................................... 11
3- Installation ....................................................... 11
3.1- Upflow orientation ...................................... 12
3.1.1- Right side condensate drain connection ...... 13
3.1.2- Left side condensate drain connection ......... 13
3.2- Down flow orientation ................................. 13
3.2.1- Down flow condensate drain connection ...... 13
3.2.2- Downflow venting drainaged ........................ 13
3.2.3- Condensate box pressure switch ................. 13
3.3- Horizontal right orientation ......................... 13
3.3.1- Horizontal right condensate drain
connection ................................................................. 13
3.3.2- Horizontal right vent drainage ...................... 14
3.3.3- Condensate box pressure switch ................. 14
3.4- Horizontal left orientation ........................... 14
3.4.1- Horizontal left condensate drain connection 14
3.4.2- Condensate box pressure switch ................. 15
4- Duct installation .............................................. 15
4.1- Return air connections ............................... 15
4.1.1- Bottom return air inlet .................................. 15
4.1.2- Side return air inlet ...................................... 15
4.2- Filter arrangement ...................................... 15
4.3- Supply air ducts ......................................... 15
4.4- General requirements ................................ 15
4.4.1- Duct work acoustical treatment .................... 16
5- Gas piping ....................................................... 17
5.1- Gas pipe grommet ..................................... 18
6- Electrical connections ................................... 18
6.1- 120 V wiring ............................................... 18
6.2- 24 V wiring ................................................. 19
6.3- Thermostats ............................................... 19
6.4- Alternate power supply .............................. 19
6.5- blower speeds (4 speed PSC motor) ......... 19
7- Venting ............................................................. 23
7.1- Special venting requirements for installations
in canada ................................................................. 23
7.2- General ...................................................... 23
7.3- Materials .................................................... 23
7.4- Direct vent - 2 pipes system ....................... 23
7.5- Size of the vent and combustion air pipes . 23
7.6- Combustion air and vent piping insulation
guidelines ................................................................ 26
7.7- Installing the vent termination .................... 27
7.7.1- Concentric vent ........................................... 27
7.7.2- Two pipes termination ................................. 27
7.7.3- Sidewall termination .................................... 27
8- Start up, adjustment and safety check ......... 27
8.1- To start the furnace .................................... 27
8.2- Unit operation hazard ................................. 28
8.3- Setup switches ........................................... 28
8.4- Option switches – 1 stage, PSC ................. 28
8.4.1- Heat mode .................................................. 28
8.4.2- Cool mode ................................................... 28
8.4.3- Manual fan on mode .................................... 29
8.4.4- Twinning interface ....................................... 29
8.4.5- System lockout and diagnostic features ....... 29
8.4.6- System lockout features .............................. 29
8.4.7- Diagnostic features ...................................... 29
8.5- Option switches – 2 stage, PSC ................. 29
8.5.1- Heat mode .................................................. 29
8.5.2- Cool mode ................................................... 30
8.5.3- Manual fan on mode .................................... 30
8.5.4- Twinning interface ....................................... 30
8.5.5- System lockout and diagnostic features ....... 30
8.5.6- System lockout ............................................ 30
8.5.7- Last fault mode ............................................ 30
8.5.8- Fault code reset .......................................... 30
8.5.9- Diagnostic features ...................................... 30
8.6- Option switch settings – 2 stage ECM........ 32
8.6.1- Thermostat type and heat-fan-off delay ....... 32
8.6.2- Multi-stage thermostat set-up, factory
default 32
8.6.3- Single stage thermostat set-up, module
controls staging ......................................................... 32
8.6.4- Heat fan off delay timing .............................. 32
8.6.5- De-humidification connection ....................... 32
8.6.6- Normal operation – heat on ......................... 32
8.6.7- Normal operation – heat off ......................... 32
8.6.8- Cool mode ................................................... 32
8.6.9- Adjust cooling airflow – dipswitch S3-1 and
S3-2 32
8.6.10- Manual fan on mode ............................... 32
8.7- Troubleshooting ......................................... 33
8.7.1- System lockout ............................................ 33
8.7.2- System reset ............................................... 33
8.7.3- Thermostat reset ......................................... 33
8.7.4- Auto restart ................................................. 33
8.7.5- Diagnostic features ...................................... 33
8.7.6- Fault code retrieval ...................................... 33
8.7.7- CFM indicator .............................................. 33
8.8- Prime condensate trap with water .............. 35
8.8.1- Check safety controls .................................. 35
8.8.2- Checklist ..................................................... 35
9- Operating your furnace .................................. 35
9.1- Start up instructions ................................... 35
9.2- Shutting down the furnace ......................... 35
9.2.1- To turn off gas to furnace ............................ 35
10- Maintenance of your furnace .................. 36
10.1- Cleaning/replacing the filter ........................ 36
10.1.1- Filter location .......................................... 36
10.2- Lubrication ................................................. 36
10.3- Burner flame .............................................. 36
10.4- Condensate collection and disposal system
(if applicable) ........................................................... 36
10.5- Rollout switch ............................................. 36
10.6- Safety interlock switch................................ 36
10.7- repair parts ................................................. 36