Carrier Owners Manual - Enlarge page 1 of 12
2 of 12
3 of 12
4 of 12
5 of 12
6 of 12
7 of 12
8 of 12
9 of 12
10 of 12
11 of 12
12 of 12
From inside (document excerpt):
Pressure Tube Kit Cancels: IIK 340M-40-75 IIK 340M-40-87 8-05 Installation Instructions Part No. 311166-755 NOTE: Read the entire instruction manual before starting the installation. This symbol indicates a change since the last issue. SAFETY CONSIDERATIONS Installing and servicing of heating equipment can be hazardous due to gas and electrical components. Only trained personnel should install or service heating equipment.
Untrained personnel can perform basic maintenance functions such as cleaning coils or cleaning and replacing filters. All other operations should be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached to the unit. Follow all safety codes. Wear safety glasses and work gloves. Have a fire extinguisher available. Recognize safety information. This is the safety-alert symbol. When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury. Understand the signal words, DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard whichcould result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation. DESCRIPTION AND USAGE This pressure tube kit is designed for use when replacement of the factory-installed tubing is required. This kit is for use with models 320AAZ, 321AAZ, 340MAV, 345MAV, 350MAV, 351DAS, 352MAV, 355MAV, 340AAV, 350AAV, 352AAV, 355AAV, 398AAV, 398AAZ, 398BAZ, 399AAZ, 490AAV, 58DX, 58DXA, 58DXC, 58MCA, 58MSA, 58MVP, 58MTA, 58MXA, 58MCB, 58MVB, 58MTB, 58MXB, 58SX, 58SXA, 58SXB, 58SXC, 58VCA, 58VUA, PG9MAA, and PG9MAB Gas-Fired Condensing Furnaces. This pressure tube kit contains the following items: Tubing (1 length to be cut to size) Plastic tee Clamps Installation Instructions INSTALLATION 1. Turn off gas and electrical supplies to unit. 2. Remove furnace door. 3. Cut tubing to proper length as required. Refer to appropriate figure for required tubing lengths as shown in Table 1. 4. Install clamps (provided in kit) on ends of new tubes. NOTE: Pressure tubing in units may be routed slightly different than what is shown in diagrams. Where possible, refer to tubing label on unit. 5. Replace all tubing called out in proper figures. NOTE: Remove and replace 1 tube at a time. Ensure tubing is routed in same manner as original pressure tubing. 3 3 18 1 FIRE, EXPLOSION AND ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury, death and/or property damage. Turn off gas and electrical supplies to unit before beginning any installation or modification.