Carrier 58SS/DH- Manuals

RETURN OR SUPPLY AIR pl~1 VENT TO ROOF I I I I I I I I I * MINIMUM OPENING SIZE IS 100 SO IN. (REUIRN + MINIMUMOF 3 IN. WHEN TYPE-BI VENT IS USED. AIR ONLY) Fig. 1 — Upflow or Counterflow, Using Air from Inside Building I so IN. PER 4000 BTUH DUCTS TO ROOF I I I I 12 IN. MAX T I so IN. PER 2000 BTUH...

Place a ground joint union between the gas control manifold and the manual gas shutoff valve. See Fig. 4. A WARNING Use the proper length of pipes to avoid stress on the gas control manifold. Protect all segments of the piping system against physical and thermal damage. Support all piping with appro...

MORE THAN Fig. 5 — Chimney, Gas Vent Height Type-BI Gas Vent — Note that this furnace may be connected to type-Bl gas vents. Type-Bl vents are suitable, providing the vent system always operates at zero or negative pressure. The vent system of this furnace meets this standard. For Replacement Instal...