Carrier 48/50HJ004-014 specifications Unit Size Equipment Support, Part Number

	UNIT SIZE		EQUIPMENT SUPPORT	DIMENSIONS (in.)
4”			PART NUMBER	A	B	C
	3-6 Ton		CRAQSUPT001A00	36.9	40	8 to 14
A			CRAQSUPT002A00	36.9	40	14 to 24
			CRAQSUPT003A00	49.7	54	8 to 14
71/2-121/2		Ton
			CRAQSUPT004A00	49.7	54	14 to 24

		ENERGY	HVAC UNIT
		RECOVERY
C”		SECTION
	SCREW
	SUPPORT
	IN PLACE	PAD
	ADJUSTABLE		CURB
	EQUIPMENT
		ROOF
	SUPPORT

10” x B (SEE CHART) PROTECTIVE RUBBER PAD (EPDM)

Fig. 4 — Supplemental Energy Recovery Section Equipment Support

Step 4 — Rig and Place Unit — Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit. Rollers may be used to move unit across a roof. Remove the bottom wooden skids that are under the unit by removing the wooden plates that hold the bottom wooden frame to the unit. Level by using unit frame as a reference. Lift- ing holes are provided in base rails as shown in Fig. 6A and 6B. Refer to rigging instructions on unit.

All panels must be in place when rigging.

POSITIONING — Maintain clearance around and above unit to provide minimum distance from combustible materials, proper airflow, and service access. A properly positioned unit will have the following clearances between unit and roof curb: 1/4-in. clearance between roof curb and base rails on each side and duct end of unit; 1/4-in. clearance between roof curb and condenser coil end of unit.

Do not install unit in an indoor location. Do not locate unit air inlets near exhaust vents or other sources of contaminated air.

Be sure that unit is installed such that snow will not block the combustion intake or flue outlet.

Unit may be installed directly on wood flooring or on Class A, B, or C roof-covering material when roof curb is used.

Although unit is weatherproof, guard against water from higher level runoff and overhangs.

Flue vent discharge must have a minimum horizontal clear- ance of 4 ft from electric and gas meters, gas regulators, and gas relief equipment.

Minimum distance between unit and other electrically live parts is 48 inches.

Flue gas can deteriorate building materials. Orient unit such that flue gas will not affect building materials. Locate mechanical draft system flue assembly at least 48 in. from an adjacent building or combustible material.

Adequate combustion- and ventilation-air space must be provided for proper operation of this equipment. Be sure that installation complies with all local codes and Section 5.3, Air for Combustion and Ventilation, NFGC (National Fuel Gas Code), and ANSI (American National Standards Institute) Z223.1, and NFPA (National Fire Protection Association) 54 TIA-54-84-1. In Canada, installation must be in accordance with the CAN1-B149 installation codes for gas burning appliances.

After unit is in position, remove rigging skids and shipping materials.

6