Lifebreath 94-EXCHANGER-MD, 99-MD-KIT specifications Low Voltage 24 VAC, Dehumidistat Operation

Dehumidistat Operation

Low Voltage - 24 VAC

Dehum					idistat
								e to
		g Relativ						ns
Settin
Outside				Conditio
		WINTER:
Set		dehumidistat
				30% to			40%.
between							dry,
				is too					.
If	home
		to higher				setting
adjust			is too			humid,
If home						setting.
adjust		to lower
		SUMMER:
Set dehumidistat
		to OFF

Installation

REMOTE DEHUMIDISTAT

*requires 2 wires

•anywhere humidity is a concern

•opens dampers to allow ventilation when humidity level exceeds

selected setting

Part No. 99-130

PROBLEMS	SOLUTIONS
Air is too dry	• Increase humidity
	• Switch ventilation mode from continuous
	to intermittent
	• Install a humidifier
Air is too humid	• Reduce the humidity
	• Verify if dryer is venting in basement
	• Verify if heating wood is stored in basement
	• Wait for outside temperature to change
	Ex. Summer can be extremely humid
	• Verify balancing of the HRV
	• Run furnace blower continuously to increase
	ventilation rate

		Return Air
		3’
		min.
	Insulated	recommended
Outdoors
	Duct	Built-in balancing damper*
		in both air streams.

DRAIN	DRAIN
SPOUT	SPOUT
TAPE	TEE
	CONNECTOR

Cool Air

Return

*Unit is normally balanced with furnace running at highest operational speed

Forced

Air

Furnace

TO DRAIN

NOTES:

1.Furnace blower is required to operate when ventilation is required.

2.Weatherhood arrangement is for drawing purposes only. Six feet (2 m) minimum separation required. Eighteen inches (460 mm) above grade minimum.

3.Due to pressure differences in the equipment, airflows must be adjusted and confirmed on site.

4.Maintenance should be performed twice a year or more if required. Remove and wash filters and core and replace. Outside hoods should be visually checked for blockage regularly.

5.Drain is required as shown above.

6.Built in balancing damper may require seasonal adjustments.

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