Thomas & Betts FE, BE warranty Optional Vertical Louvers Option CD1, Sizes Range Air Deflection

OPTIONAL EQUIPMENT

This section contains a brief description of the more frequently specified field-installed options. All option packages include complete assembly and installation instructions.

25. Optional Vertical Louvers - Option CD1

The purpose of the addition of optional vertical louvers is to in- crease the air pattern spread. The vertical louver assembly is de- signed to be field assembled and installed. Refer to the instructions packaged with Option CD1 for a list of components and step-by- step installation instructions (Do not add optional vertical louvers to a fan-type heater with downturn nozzle Option CD3. See Paragraph 26.)

CAUTION: To avoid getting burned, adjust louvers prior to heater operation. If louvers need re-adjusting after start-up, wear protective gloves.

Figure 15 -

Optional

Vertical

Louvers

26.Optional Downturn Air Nozzles - Options CD2, CD3, CD4, & CD5

	Sizes		"A"		Range of
				Air Deflection
	25-125		9" (229mm)		25o-65o
165-400			13" (330mm)		25o-65o
			Figure 16 - Optional
			Downturn Nozzles
Sizes			"A"		Range of
					Air Deflection
25-125		16-1/2" (419mm)			50o-90o
165-400		23-1/2" (597mm)			50o-90o

Unit heaters may be specified with optional downturn air nozzles to direct the discharge tempered air. The nozzles are shipped separately for field assembly and installation. The horizontal louvers are removed from the heater and re-installed into the outlet of the downturn nozzle.

The addition of a downturn nozzle requires four-point heater suspension. Two hanger brackets are included with downturn nozzle options and must be added to fan-type heaters with standard two-point suspension. Suspen- sion point dimensions are found in Dimension Charts in Paragraph 3. On fan-type heaters, do not install Option CD5 or use vertical louvers with Option CD3.

27. Optional Duct Flange - Option CD9 (Blower Models only)

Blower-type unit heaters may be connected to ductwork. The duct flange option is designed to adapt the heater outlet (supply side) for connection to ductwork.

Ductwork connection sizes are shown in the chart below.

Follow the installation instructions included with the option package.

Model BE	Duct Connection Sizes (inches and mm) with Optional Duct Flange
Size	25-50	75	100	125	165	200	250-300	400
Height	15-7/8	15-7/8	15-7/8	15-7/8	23-7/8	23-7/8	23-7/8	23-7/8
	403	403	403	403	606	606	606	606
Width	10-3/4	12-3/4	14-3/4	20-1/2	17-1/2	20-1/2	26	34-1/4
	273	324	375	521	445	521	660	870

Form 436, Page 20