User Guide

5
CONTROL FEATURES
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
Basic Control:
Allows the user to manually set fan speed to low or high as required to maximize comfort.
Standard Control:
Offers automatic dehumidistat control and the option to select continuous or intermittent fan operation. Setting the 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 offer a non--electric defrost cycle feature 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 --- 1 5 _C)
4_F T O --- 1 7 _F
( --- 1 5 . 6 _C T O --- 2 7 . 3 _C)
B E L O W --- 1 8 _F
( --- 2 7 . 8 _C)
DEFROST* EXCHANGE{ DEFROST* EXCHANGE{ DEFROST* EXCHANGE {
ERVBBLHA 6 Minutes 60 Minutes 6 Minutes 32 Minutes 6 Minutes 20 Minutes
HRVBBLHA 6 Minutes 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
ERV / HRV