Greenheck Fan 470658 MSX manual Table of Contents, Clearance to Combustibles / Service Clearances

Table of Contents

Installation

Clearance to Combustibles/Service Clearances 3
Indoor Unit		3
Unit Arrangement DB / HZ / UB		4
Roof Mounted Unit — Arrangement DBC. .	.	5-6
Optional Evaporative Cooling Module.. . .	.	7
Electrical Wiring . . . . . . . . . . . . . . 8
Optional Electrical Heater		9
Optional Evaporative Cooling Piping.. . .	10-11
Optional Water Wizard™	.	. 12
Optional Direct Expansion (DX) Coil Piping. 13-14
Optional Chilled Water Coil Piping		14
Optional Building Pressure Control. . . .	.	. 15

Start-Up

Blower. . . . . . . . . . . . . . . . 16-17 Optional Electric Heater. . . . . . . . . . 18 Optional Evaporative Cooling Recirculating. . 19 Optional Water Wizard™ . . . . . . . . .20-21

Operation

Optional VAV Units	22
Optional Recirculating Units	23
Electrical	24
Optional Water Wizard™	. 25

Troubleshooting

Blower	26
Motor Overamps	27
Insufficient / Too Much Airflow	28
Excessive Noise or Vibration	29
Optional Electric Heater	30
Optional Evaporative Cooling	31
Optional Water Wizard™	. 32

Maintenance

Routine . . . . . . . . . . . . . . . .33-35 Fall. . . . . . . . . . . . . . . . . . . 36

Reference

Control Center Layout / Dirty Filter Switch. . . 37 Start-Up Check List . . . . . . . . . . . . 38 Maintenance Log . . . . . . . . . . . . . 39 Warranty . . . . . . . . . . . . . Backcover

Clearance to Combustibles / Service Clearances

	Floor	Top	Sides	Ends
Insulated/	0 inches	0 inches	0 inches	0 inches
Units	(0 mm)	(0 mm)	(0 mm)	(0 mm)
Non Insulated	0 inches	6 inches	6 inches	6 inches
Units	(0 mm)	(152.4 mm)	(152.4 mm)	(152.4 mm)

Clearance to combustibles is defined as the minimum distance required between the heater and adjacent combustible surfaces to ensure the adjacent surface’s temperature does not exceed 90 degrees above the ambient temperature.

Recommended Minimum Service Clearances

Housing 32 and less	42 inches (1066.8 mm)
	on the controls side of the unit
Housing 35 and higher	48 inches (1219.2 mm)
	on the controls side of the unit

Clearances for component removal (such as evaporative cooler media) may be greater than the service clearances listed.

Installation of Indoor Unit

1. Install Hangers

Install threaded hangers from ceiling supports. When locating hangers, allow enough room to open access panel(s). Two nuts must be used on the end of each threaded hanger. Ceiling supports are supplied by others.

2. Install Unit

Using sheet metal screws, attach the weatherhood/ thru-wall/filter section to the blower/burner section. The flange on the weatherhood/thru-wall/filter section should overlap the flange on the blower/burner section.

Raise the assembled unit into place.

Using two nuts per hanger, fasten the unit supports to the hangers under the unit. Appropriate unit supports, such as the optional Greenheck hanging bracket kit or c-channel and angle iron (supplied by others) should be used.

Using self	Ceiling Supports	Ductwork
tapping
screws,
attach
ductwork to
unit.
In order to
prevent the
unit from	Hangers
swinging		Unit Supports

and to
provide	Indoor Mounting
a safe

environment for service and maintenance, additional measures must be taken to secure the unit in all directions.

NOTE

Two nuts must be used on each end of each threaded hanging rod for proper support.

NOTE

Good duct practices should be followed for all ductwork. Ductwork should be installed in accordance with SMACNA and AMCA guidelines, NFPA 96 and any local codes. Reference the CAPS submittal for duct sizes.

3. Seal Wall Opening	Sealant
Apply sealant around
the perimeter of the
weatherhood to prevent
water penetration and
drafts into the building.

Seal Wall Opening

® Model MSX Make-Up Air 3