Aprilaire model 800 specifications INSTALLATION INSTRUCTIONS continued, Clearances, Humidifier

INSTALLATION INSTRUCTIONS (continued)

Humidifier

Mount humidifier in a location where ambient temperature does not exceed 120°F or where freezing temperatures may occur..

Mount humidifier in a location that allows access for servicing, and clearance to remove front panel for replacing the canister and side panel for access to the electrical components during installation..

See Figure 5 for minimum clearances around humidifier..

The humidifier should be mounted as close to the dispersion tube as possible.. Table 3 shows how capacity is reduced as the distance between the humidifier and dispersion tube increases.. If the humidifier is mounted on the duct directly below the dispersion tube, allow space for a bend in the steam hose..

The humidifier can be mounted to a wood surface, or to sheet metal ductwork if it is structurally stable.. Do not mount humidifier to fiber duct board..

The humidifier must be mounted to a vertical surface and must be mounted level in the upright position..

Do not mount humidifier near sources of electromagnetic emissions such as power distribution transformers..

Figure 5 – Clearances
		16" for
		Steam
		Hose
	FRONT VIEW
	16" for	30" for
4"	Electrical	Service
	Access	Access
	16"	SIDE VIEW
	for Drain
90-1519

ADHC (Automatic Digital humidifier Control) Model 62

The ADHC must be mounted in the return air duct at least 6” upstream of any fresh air intake ducts or sources of moisture (steam dispersion tube if it is in the return..) Follow instructions provided with the control..

If the application requires a wall-mounted control in the conditioned space, use Aprilaire Part #4993, which includes a wall-mountable manual humidistat, a relay to activate the HVAC blower, and wiring instructions..

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