Position (15 16)
Variations Indicated in RED
(Covers variations that have not been covered in other
alpha-numeric positions.)
| Code | Description |
GAS-FIRED BOILERS |
|
| AA | Standard Unit |
| GAS-FIRED HEATING ONLY UNITS | |
| JA | Aluminized Heat Exchanger w/Cooling Relay |
| KA | Aluminized Primary Heat Exchanger PPL Secondary Heat Exchanger |
| COILS & FAN COILS | |
AA |
Standard Unit |
| AIR CONDITIONING & HEAT PUMP UNITS | |
AA |
Standard Unit (No unique Variations) |
| HUMIDIFIERS, AIR CLEANERS, & BLOWERS PACKAGES | |
| AA | Standard Unit |
| AB | Unit w/Blower Deck |
| BA | Standard Unit w/Humidistat |
| BB | Air Cleaner w/o Cabinet |
| CA | Standard Unit Packaged in Group of 8 |
| HEAT RECOVERY VENTILATOR | |
00 |
None |
| 15th POSITION--PACKAGED UNITS | |
| A | Standard Unit |
| B | Unit w/Compressor Protection |
| C | Unit w/Economizer |
| D | Unit w/Economizer & Air Damper |
| E | Unit w/D Motor Larger than 3/4 HP |
| F | Unit w/Economizer & Linkage, w/o Economizer Motor |
| G | Unit w/Load Sequenced Economizer |
| H | Manual Outdoor-Air Damper |
| 15th POSITION--OIL-FIRED FURNACES | |
| A | Standard Unit w/o Retention Head Burner |
| B | Standard Unit w/ Retention Head Burner |
| 16th POSITION--OIL FURNACES
& PACKAGED UNITS BLOWER MOTOR HP & DRIVE TYPE |
|||
| A | 1/8 DD | N | (w/o Blower and/or Motor) |
| B | 1/6 DD | P | 3/4 BD |
| C | 1/5 DD | R | 1 BD |
| D | 1/4 DD | S | 1-1/2 BD |
| E | 1/3 DD | T | 2 BD |
| F | 1/2 DD | U | 3 BD |
| G | 3/4 DD (and larger) | V | 5 BD |
| H | 1/5 BD | W | 7-1/2 BD |
| J | 1/6 BD | X | 10 BD |
| K | 1/4 BD | Y | 1/10 DD |
| L | 1/3 BD | Z | 1/12 DD |
| M | 1/2 BD | ||