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Control
Description
Fan Speed
Control
Dehumidistat
Control
Continuous
Mode
Intermittent
Mode
OneTouch Yes No Yes Yes
Basic Yes No Yes No
Standard Yes Yes Yes Yes
Control Features
Basic Control:
Allows the user t o manually set fan speed to low or high a s
required to maximize comfort.
Standard Contro l:
Offers automatic dehumidistat control and the option to select
continuous or intermittent fan operation. Setting t he wall control
to low will activate the continuous mode.
OneTouch Control:
Allows control of ventilator with the touch of a button. This
control will operate as a main wall control. The OneTouch will
operate the unit in Intermittent Mode (20 minutes per hour),
continuous low speed, continuous high speed, and off.
Automatic Defrost Cycle Features
All models of fer a n on--electric defrost cycle f eature which
prevents frost and ice buildup within the heat recovery core.
When the outside air temperature falls below 23_F(--5_C) it is
electronically sensed and the dampers close the outside air ports.
This allows warm indoor air to recirculate within the heat
recovery core. The frequency of this cycle increases as the outside
air temperature decreases.
Model
25_FTO55_F
( --- 5_C T O --- 15_C)
4_F TO --- 17_F
( --- 15.6_C TO --- 27.3_C)
BELOW --- 18 _F
( --- 27.8_C)
M
o
d
e
l
DEFROST* EXCHANGE{ DEFROST* EXCHANGE{ DEFROST* EXCHANGE{
HRVBBLHA 6 Minutes 60 Minutes 6 Minutes 32 Minutes 6 Minutes 20 Minutes
HRVBBSHA 6 Minutes 60 Minutes 6 Minutes 32 Minutes 6 Minutes 20 Minutes
HRVBBSVA 6Minutes 60 Minutes 6 Minutes 32 Minutes 6 Minutes 20 Minutes
* All defrost times are in the standard mode (as shipped)
{ Time between defrost when within specified temperature range
HRV