Therma-Stor Products Group Quiet-Vent Ventilation System owner manual Hanging the Quiet-Vent

2.4 Hanging the Quiet-Vent

The Quiet-Vent has four vibration absorbing straps for hanging from joists, rafters, or trusses (See Fig. 1 & 3) and use (4) 1/4” diameter lag bolts or the equivalent. Locate the unit to minimize the ducting from the baths and kitchen to the Quiet-Vent inlets and from the Quiet-Vent outlet to the outside. Because the oiling system depends on gravity, the unit must be oriented with the hanger bolts on the top.

2.5 Ducting to and from the Quiet-Vent

All flexible ducting connected to the unit should be UL listed. The preferred method of ducting the exhaust air from the rooms is to use 4” round duct from 4” x 6” register heads located in the wall cavities or the ceiling. For routing through 3.5” stud cavities, flatten the 4” round duct to 3.25”. If a 4” duct length from a full bath or kitchen exceeds 50’, two 4” ducts or a 6” duct is recommended. The 4” duct can be either metal or flexible and can be routed to the Quiet-Vent 4” inlet or manifolded to a 6” duct. If more than four 4” ducts are connected to the Quiet-Vent, use a 6” manifold on the Quiet-Vent’s 6” inlet.

DO NOT locate the register head connecting the kitchen duct to the Quiet-Vent in the area designated in Fig. 5.

To exhaust the stale air, connect a six inch insulated flexible duct from the outlet of the Quiet-Vent to a dampered six inch wall cap. If the length of the exhaust duct exceeds 50 ft., an 8” duct should be used. All the ducts must be insulated when they are located in non- heated space in a cold climate. Flexible duct can be spliced by threading the ends of the ducts into each other 3 turns. To reduce leakage, all the duct couplings should be taped with 3 turns of duct tape. Several ducting alternatives are illustrated in Fig. 3.

2.6 Wiring the Quiet-Vent

NOTE: All electrical connections must be installed by a qualified electrician. All wiring must conform to the local electric codes and/or the National Electrical Code.

Timer switch ground

Circuit to next timer in bath or kitchen

Timer switch ground

115 Volt circuit/ground from Quite-Vent to bath or kitchen

10-15 AMP 115 Volt circuit with ground from main electrical service

Alternative Electrical

Layouts

Quiet-Vent uses a 115 volt, 10 amp circuit which is	Figure 4
connected to the black and white wires in the electrical
cabinet (see Fig. 4). Spring wound one hour remote timers	Cooking Area
or humidity controllers located in the baths and kitchen
are wired in parallel to the two blue wires. These remote	Do Not Install Above or Inside
controls activate the high speed of the exhaust fan. These
	This Area
controls are to be UL listed with minimum electrical ratings
of 2 amps inductive load at 125 VAC.
The prewired 7 day timer located on the Quiet-Vent
activates the low speed of the exhaust fan. The timer can	45°	45°
be mounted remote from the Quiet-Vent. This requires a
double gang electrical box and 3 conductors plus ground
to extend connections to the timer from the Quiet-Vent.	Cooking	Floor
A 4” junction box cover is used to cover the timer opening
	Equipment
on the Quiet-Vent.	Figure 5
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