Carrier 58CTA/CTX Opening dimensions - In. mm, Duct Flanges, Upflow Downflow Horizontal

Table 4 – Opening dimensions - In. (mm)

FURNACE		PLENUM OPENING		FLOOR OPENING
CASING	APPLICATION
WIDTH		A	B	C	D
	Upflow Applications on Combustible or Noncombustible Floor-	12--- 11/16	21--- 5/8	13--- 5/16	22--- 1/4
	ing (KGASB subbase not required)	(322)	(549)	(338)	(565)
	Downflow Applications on Noncombustible Flooring (KGASB	12--- 9/16	19	13--- 3/16	19--- 5/8
14–3/16	subbase not required)	(319)	(483)	(335)	(498)
	Downflow applications on combustible flooring (KGASB sub-	11--- 13/16	19	13--- 7/16	20--- 5/8
(376)
	base required)	(284)	(483)	(341)	(600)
	Downflow Applications on Combustible Flooring with CNPV,	12--- 5/16	19	13--- 5/16	20
	CNRV, CAR, or CAP Coil Assembly or KCAKC coil box
		(319)	(483)	(338)	(508)
	(KGASB subbase not required)
	Upflow Applications on Combustible or Noncombustible Floor-	16	21--- 5/8	16--- 5/8	22--- 1/4
	ing (KGASB subbase not required)	(406)	(549)	(422)	(565)
	Downflow Applications on Noncombustible Flooring (KGASB	15--- 7/8	19	16--- 1/2	19--- 5/8
17–1/2	subbase not required)	(403)	(483)	(419)	(498)
	Downflow applications on combustible flooring (KGASB sub-	15--- 1/8	19	16--- 3/4	20--- 5/8
(445)
	base required)	(384)	(483)	(425)	(600)
	Downflow Applications on Combustible Flooring with CNPV,	15--- 1/2	19	16--- 1/2	20
	CNRV, CAR, or CAP Coil Assembly or KCAKC coil box
		(394)	(483)	(419)	(508)
	(KGASB subbase not required)
	Upflow Applications on Combustible or Noncombustible Floor-	19--- 1/2	21--- 5/8	20--- 1/8	22--- 1/4
	ing (KGASB subbase not required)	(495)	(549)	(511)	(565)
	Downflow Applications on Noncombustible Flooring (KGASB	19--- 3/8	19	20	19--- 5/8
21	subbase not required)	(492)	(483)	(508)	(498)
	Downflow applications on combustible flooring (KGASB sub-	18--- 5/8	19	20--- 1/4	20--- 5/8
(533)
	base required)	(473)	(483)	(514)	(600)
	Downflow Applications on Combustible Flooring with CNPV,	19	19	20	20
	CNRV, CAR, or CAP Coil Assembly or KCAKC coil box
		(483)	(483)	(508)	(508)
	(KGASB subbase not required)
	Upflow Applications on Combustible or Noncombustible Floor-	23	21--- 1/8	23--- 5/8	22--- 1/4
	ing (KGASB subbase not required)	(584)	(537)	(600)	(565)
	Downflow Applications on Noncombustible Flooring (KGASB	22--- 7/8	19	23--- 1/2	19--- 5/8
24--- 1/2	subbase not required)	(581)	(483)	(597)	(498)
	Downflow applications on Combustible flooring (KGASB sub-	22--- 1/8	19	23--- 3/4	20--- 5/8
(622)
	base required)	(562)	(483)	(603)	(600)
	Downflow Applications on Combustible Flooring with CNPV,	22--- 1/2	19	23--- 1/2	20
	CNRV, CAR, or CAP Coil Assembly or KCAKC coil box
		(572)	(483)	(597)	(508)
	(KGASB subbase not required)

58CT

UPFLOW DOWNFLOW HORIZONTAL

90û		90û
YES	YES	YES

120û	YES	120û	YES	120û	YES
MIN		MIN		MIN

NOT	NOT	NOT
RECOMMENDED	RECOMMENDED	RECOMMENDED

A02329

Fig. 14 - Duct Flanges

13