Standard Dehumidistat (Part # Dstat-1) & 2-Wire Switches; Windsor Control (Part # Win-1); Windsor Timer (Win-20) - Nu-Air NU0103 Operating, Maintaining & Installing

6.2.3 Standard Dehumidistat (Part # DSTAT-1) & 2-wire switches
The dehumidistat switches the HRV to high speed when the relative humidity of the air around it
exceeds its set point until indoor humidity falls below the set point.
NC
I
NO
R
C
TL
TS
SB
Hi
LO
6.2.4

Windsor Control (Part # WIN-1)

The Windsor Dehumidistat Control provides the same humidity control as the Standard
Dehumidistat, with the added functionality of a 3-position switch from which the operator can
select three operating modes. The Constant switch can be engaged for full-time high speed.
NC
I
NO
R
C
TL
TS
SB
Hi
LO
6.2.5

Windsor Timer (WIN-20)

Install in bathrooms, kitchens, workstations or other locations where high-speed ventilation
control is needed. The machine will run at high speed for twenty (20) minutes and then return to
its previous operating condition. Timers can be connected in series or parallel.
Rev 2.3 July 17, 2017
For intermittent high speed operation, connect Nu-Air PN DSTAT-1,
dedicated (RNC) wall switch, CO
For continuous low speed, connect jumper wire to R and LO
terminals.
Where required, C terminal may be used for controls requiring
external 24 VAC power source.
PURPLE
For two-wire switching, and where local building regulations permit,
PURPLE
Nu-Air recommends a jumper wire between R and SB to engage the
unit in standby mode.
DSTAT-1
RED
Choose from the following operating modes:
GREEN
BLACK
YELLOW
WIN-1
1. Off
2. Standby
3. Continuous low speed
4. Intermittent high speed
5. Continuous high speed
sensor, etc. to R and Hi terminals.
2
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