These steps are in the installation instruction manual below. Look for the downloadable link.
22. Remove the HIGH regulator brass cap.
23. Remove the regulator adjustment screw (beneath the cover screw).
24. Remove the Natural Gas regulator spring from the regulator sleeve.
25. Insert the LP regulator spring (provided in the included spring kit) into the
regulator sleeve.
Below is a snippet from the contents of the LP Conversion Kit Installation Instructions. The full, current version of which can be accessed here.
Installation Instructions LP Conversion Kit
Used with 3 to 10 Tons Two-Stage Gas Package Units
Model Number: BAYLPKT029*, BAYLPKT030*
Used with:
- YSC036-060G(3,4,W)*(L,X,M,Y,H,Z)B
- YC072E/F(3,4,W)*(H,Z)*, YSC072H(3,4,W)*(H,Z),
YHC074F(3,4)*(H,Z),
YC090E/F(3,4,W)*(M,Y,H,Z), YSC090H(3,4,W)*(M,Y,H,Z),
YC092E/F(3,4,W)*(M,Y,H,Z), YSC092H(3,4,W)*(M,Y,H,Z),
YC102E/F(3,4,W)*(M,Y,H,Z), YSC102H(3,4,W)*(M,Y,H,Z)- YC120F(3,4,W)*(L,X,M,Y,H,Z), YSC120H (3,4,W)*(L,X,M,Y,H,Z)
- YHC120E/F(3,4,W)*(L,X,M,Y,H,Z), DHC074H(3,4,W)*(H,Z),
DHC(092/102)H(3,4,W)*(M,Y,H,Z),
DHC120H(3,4,W)*(L,X,M,Y,H,Z)- YSC072ED*H, YSC090ED*H, YSC102ED, YSC120ED
⚠️ Safety Warning
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
Page 1
Warnings, Cautions, and Notices
Read this manual thoroughly before operating or servicing this unit. Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.
The three types of advisories are defined as follows:
⚠️ Warning |
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. |
⚠️ Caution |
Indicates a potentially hazardous situation which if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe circumstances. |
Notice |
Indicates a situation that could result in equipment or property-damage only accidents. |
Important Environmental Concerns
Scientific research has shown that certain man-made chemicals can affect the earth's naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs such as HCFCs and HFCs.
Important Responsible Refrigerant Practices
Trane believes that responsible refrigerant practices are important to the
environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified according to local rules. For the USA, the Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants.
Know the applicable laws and follow them.
Page 2
⚠️ Warning |
|---|
|
Proper Field Wiring and Grounding Required! Failure to follow code could result in death or serious injury. All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state electrical codes. |
⚠️ Warning |
|---|
|
Personal Protective Equipment Required! Installing/servicing this unit could result in exposure to electrical, mechanical and chemical hazards. Before installing/servicing this unit, technicians MUST put on all Personal Protective Equipment (PPE) recommended for the work being undertaken. ALWAYS refer to appropriate SDS sheets and OSHA guidelines for proper PPE. When working with or around hazardous chemicals, ALWAYS refer to the appropriate SDS sheets and OSHA guidelines form information on allowable personal exposure levels, proper respiratory protection and handling recommendations. If there is a risk of arc or flash, technicians MUST put on all necessary Personal Protective Equipment (PPE) in accordance with NFPA70E for arc/flash protection PRIOR to servicing the unit. Failure to follow recommendations could result in death or serious injury. |
⚠️ Warning |
|---|
|
Follow EHS Policies! Failure to follow instructions below could result in death or serious injury.
|
Page 3
General
These instructions describe converting gas package unit models from natural gas to LP gas. Conversion from natural gas to LP gas procedure; there, these instructions must be followed closely.
Inspection
- Unpack all components of the LP Conversion Kit.
- Check carefully for any shipping damage. If any damage is found it must be reported immediately and a claim made against the transportation company.
-
This kit contains the correct parts required for LP conversion. Refer to Table 3 to determine proper orifice selection. The kit contains the following items.
Table 1. BAYLPKT029*Quantity Description 1 Block Off Plate - 2 Hole 1 Block Off Plate - 3 Hole 1 Block Off Plate - 4 Hole 1 Block Off Plate - 5 Hole 2 Sheet Metal Screws 10-16 x 1/2 2 Self Drilling Hex Head Screws 10-16 x 1/2 5 Orifice Spuds, Drill # 46 - .081 in. (2.057mm) Dia. 5 Orifice Spuds, Drill # 47 - .0785 in. (1.994 mm) Dia. 4 Orifice Spuds, Drill # 49 - .073 in. (1.854 mm) Dia. 2 Orifice Spuds, Drill #50 - .070 in. (1.778 mm) Dia. 4 Orifice Spuds, Drill #51 - .067 in. (1.702 mm) Dia. 4 Orifice Spuds, Drill #53 - .0595 in. (1.511 mm) Dia. 3 Orifice Spuds, Drill 1/16 in. (1.588 mm) Dia. 1 LP Nameplate Label 1 LP Conversion Spring Kit
Page 4
Table 1 BAYLPKT029* (continued)
| Quantity | Description |
|---|---|
| 1 | LP Conversion Literature |
| 1 | 1.643 in. Air Orifice, Part No. 436646151710 |
| 1 | 1.844 in. Air Orifice Plate, Part No. 436646150310 |
| 1 | 2.00 in. Air Orifice Plate, Part No. 436646151310 |
| 1 | 2.40 in. Air Orifice Plate, Part No. 436646152410 |
| 1 | 2.75 in. Air Orifice Plate, Part No. 436646150510 |
| 1 | 2.9 in. Air Orifice Plate, Part No. 436646151110 |
Table 2. BAYLPKT030*
| Quantity | Description |
|---|---|
| 1 | Block Off Plate - 2 Hole |
| 1 | Block Off Plate - 3 Hole |
| 1 | Block Off Plate - 4 Hole |
| 1 | Block Off Plate - 5 Hole |
| 2 | Sheet Metal Screws 10-16 x 1/2 |
| 2 | Self Drilling Hex Head Screws 10-16 x 1/2 |
| 3 | Orifice Spuds, Drill # 51 - .067 in. (1.70 mm) Dia. |
| 5 | Orifice Spuds, Drill #49 - .073 in. (1.85 mm) Dia. |
| 1 | LP Nameplate Label |
| 2 | LP Conversion Literature |
Page 5
Table 3. Orifice size selection
| Unit | Gas Input | LP Gas Orifice Size | Air Orifice Plate (Part No. Last 4 Digits) | |
|---|---|---|---|---|
| Rating MBh | kW | |||
| YSC036G**(L,X)B | 72 | 21.1 | DRILL #50 | 1310 |
| YSC048G**(L,X)B | 72 | 21.1 | DRILL #50 | 0310 |
| YSC060G**(L,X)B | 72 | 21.1 | DRILL #50 | 1710 |
| YSC036G**(M,Y)B | 100 | 29.3 | DRILL 1/16 | 0310 |
| YSC048G**(M,Y)B | 100 | 29.3 | DRILL 1/16 | 0310 |
| YSC060G**(M,Y)B | 100 | 29.3 | DRILL 1/16 | 1310 |
| YSC036G**(H,Z)B | 120 | 35.2 | DRILL #53 | 1310 |
| YSC048G**(H,Z)B | 130 | 38.1 | DRILL #53 | 1310 |
| YSC060G**(H,Z)B | 150 | 44.0 | DRILL #51 | 2410 |
| YSC072E/F/H**(H,Z) | 150 | 44.0 | DRILL #46 | 0310 |
| YHC072E/F**(H,Z) | 150 | 44.0 | DRILL #49 | 1310 |
| DHC074H**(H,Z) | 150 | 44.0 | DRILL #46 | REMOVE |
| YZC072F**(H,Z) | 150 | 44.0 | DRILL #46 | REMOVE |
| YHC074**(H,Z) | 150 | 44.0 | DRILL #49 | 2410 |
| DHC092H**(M,Y) | 150 | 44.0 | DRILL #46 | REMOVE |
| YZC090F**(M,Y) | 150 | 44.0 | DRILL #46 | REMOVE |
| YSC090E/F/H**(M,Y) | 150 | 44.0 | DRILL #46 | 0310 |
| YSC092E/F**(M,Y) | 150 | 44.0 | DRILL #46 | NO CHANGE |
| YSC092H**(M,Y)****(0,1) | 150 | 44.0 | DRILL #46 | NO CHANGE |
| YSC092H**(M,Y)****(6,7) | 150 | 44.0 | DRILL #46 | REMOVE |
| YHC092E**(M,Y) | 150 | 44.0 | DRILL #46 | NO CHANGE |
| YHC092F**(M,Y) | 150 | 44.0 | DRILL #46 | REMOVE |
Page 6
Table 3. Orifice size selection (continued)
| Unit | Gas Input | LP Gas Orifice Size | Air Orifice Plate (Part No. Last 4 Digits) | |
|---|---|---|---|---|
| Rating MBh | kW | |||
| YSC102E/F**(M,Y) | 150 | 44.0 | DRILL #46 | NO CHANGE |
| YSC102H**(M,Y)****(0,1) | 150 | 44.0 | DRILL #46 | NO CHANGE |
| YSC102H**(M,Y)****(6,7) | 150 | 44.0 | DRILL #46 | REMOVE |
| DHC102H**(M,Y) | 150 | 44.0 | DRILL #46 | REMOVE |
| YHC102E**(M,Y) | 150 | 44.0 | DRILL #46 | REMOVE |
| YZC102F**(M,Y) | 150 | 44.0 | DRILL #46 | REMOVE |
| YSC120E/F/H**(L,X) | 150 | 44.0 | DRILL #46 | REMOVE |
| DHC120H**(L,X) | 150 | 44.0 | DRILL #46 | REMOVE |
| YHC120E**(L,X) | 150 | 44.0 | DRILL #46 | REMOVE |
| YZC120F**(L,X) | 150 | 44.0 | DRILL #46 | REMOVE |
| YSC090E/F/H**(H,Z) | 200 | 58.6 | DRILL #46 | 0510 |
| DHC092H**(H,Z) | 200 | 58.6 | DRILL #46 | REMOVE |
| YZC090F**(H,Z) | 200 | 58.6 | DRILL #49 | REMOVE |
| YSC092E/F**(H,Z) | 200 | 58.6 | DRILL #46 | NO CHANGE |
| YSC092H**(H,Z)****(0,1) | 200 | 58.6 | DRILL #46 | NO CHANGE |
| YSC092H**(H,Z)****(6,7) | 200 | 58.6 | DRILL #49 | REMOVE |
| YHC092E**(H,Z) | 200 | 58.6 | DRILL #46 | 0510 |
| YHC092F**(H,Z) | 200 | 58.6 | DRILL #46 | 2410 |
| YSC102E/F**(H,Z) | 200 | 58.6 | DRILL #46 | NO CHANGE |
| YSC102H**(H,Z)****(0,1) | 200 | 58.6 | DRILL #46 | NO CHANGE |
| YSC102H**(H,Z)****(6,7) | 200 | 58.6 | DRILL #49 | REMOVE |
| DHC102H**(H,Z) | 200 | 58.6 | DRILL #49 | REMOVE |
| YHC102E**(H,Z) | 200 | 58.6 | DRILL #46 | 0510 |
Page 7
Table 3. Orifice size selection (continued)
| Unit | Gas Input | LP Gas Orifice Size | Air Orifice Plate (Part No. Last 4 Digits) | |
|---|---|---|---|---|
| Rating MBh | kW | |||
| YHC102F**(H,Z) | 200 | 58.6 | DRILL #46 | 2410 |
| YZC102F**(H,Z) | 200 | 58.6 | DRILL #49 | REMOVE |
| YSC120E/F/H**(M,Y) | 200 | 58.6 | DRILL #46 | NO CHANGE |
| DHC120H**(M,Y) | 200 | 58.6 | DRILL #46 | REMOVE |
| YHC120E**(M,Y) | 200 | 58.6 | DRILL #46 | REMOVE |
| YZC120F**(M,Y) | 200 | 58.6 | DRILL #46 | REMOVE |
| YSC120H**(H,Z) | 235 | 68.9 | DRILL #47 | REMOVE |
| YSC120E/F/H**(H,Z) | 250 | 73.3 | DRILL #46 | REMOVE(a) |
| DHC120H**(H,Z) | 250 | 73.3 | DRILL #46 | REMOVE |
| YHC120E/F**(H,Z) | 250 | 73.3 | DRILL #46 | REMOVE |
| YZC120F**(H,Z) | 250 | 73.3 | DRILL #46 | REMOVE |
| YSC072ED*H | 167 | 48.9 | DRILL #49 | NO CHANGE |
| YSC090ED*H | 167 | 48.9 | DRILL #49 | NO CHANGE |
| YSC102ED*L | 125 | 36.6 | DRILL #49 | NO CHANGE |
| YSC102ED*H | 208 | 60.9 | DRILL #49 | NO CHANGE |
| YSC120ED*L | 125 | 36.6 | DRILL #49 | NO CHANGE |
| YSC120ED*H | 208 | 60.9 | DRILL #49 | NO CHANGE |
(a) YSC120E/F/H**(H,Z) with 250MBh heat input requires additional removal of heat exchange baffles if installed in the heat exchanger tubes behind the burner bracket assembly.
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.