Windsor Control (Part # Win-1) - Nu-Air ES Series Operating, Maintaining & Installing

Nu-Air Ventilation Systems Inc. - HRV Operating &Installation Manual
4.7.

Windsor Control (Part # WIN-1)

The Windsor Dehumidistat Control provides the same humidity control as the Standard Dehumidistat,
with the added control of a 3-position switch from which the operator can select three operating modes.
1. OFF - disables all functions.
2. STANDBY - HRV is on standby (intermittent). High speed ventilation on demand from the
dehumidistat, or remote timers. i.e. Auto-Off
3. CONTINUOUS - continuous low speed ventilation. HRV cycles to high speed on demand
from the dehumidistat or timers.
Also, the Windsor Control has a two position switch from which you can choose:
Constant - locks the motors in High speed
Standard – normal operating mode enables functions 2 and 3 above.
Wiring: Use 4-conductor wire and connect to the 10-wire terminal block (See illustration Section 10.5).
1. Red-R1 or R2
2. Green-SB
3. Black- Hi
4. Yellow- Lo.
While it offers several convenient features and operating modes, the Windsor Control can be combined
with ES Series controls to further customize system functions.
Enhance Function by Combining ES Series Mode Controls—Operation Notes
1. When combined with ES Series Mode controls, the Windsor Control (WIN-1) should be set in the
STANDBY position. As with the DSTAT-1, the Windsor Control will have command priority upon
start-up. At the first instance where an ES Series Mode control is used to turn off the system, then an ES
Mode control will be required to turn the system back on. It would then be most convenient, when
combining the WIN-1 with ES Mode controls, to keep the Mode controls in STANDBY as well to
enable intermittent high speed ventilation with humidity calls and prevent cold drafts blowing in from
outside.
2. During operation of an ES Mode control, the WIN-1 will take the Mode control out of command of
the system if the WIN-1 CONTINUOUS switch is engaged. Here all engaged ES Mode controls will
switch to "low" to match the command of the WIN-1 CONTINUOUS switch. ES Mode control will
resume after the WIN-1 CONTINUOUS switch is disengaged. If you would like to over-ride WIN-1
CONTINUOUS command, simply tap an ES Mode control in quick succession to toggle it back to the
OFF position, then chose the mode of operation that you would like.
3. The CONSTANT (high speed) feature of the WIN-1 control will over-ride commands from ES Mode
controls. ES-M2 and ES-M3 controls operating in their standby or recirculation mode, respectively, will
re-start their 20/40 cycle once the CONSTANT switch is turned off. If you would like to change the
operation mode on an ES Mode control during CONSTANT operation, you may do so and it will
commence after the CONSTANT function is turned off.
Rev October 10, 2010 - 17 -