3
1. DEFROSTING MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
2.1 INTEGRATED CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.2 A
LTITUDE MAIN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
2.3 D
ECO-TOUCH MAIN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . .9-11
2.4 L
ITE-TOUCH CONSTRUCTO MAIN CONTROL . . . . . . . . . . . . . . . . .12
2.5 S
IMPLE-TOUCH CONSTRUCTO MAIN CONTROL . . . . . . . . . . . . . . .12
2.6 C
ONSTRUCTO MAIN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.7 O
PTIONAL AUXILIARY CONTROLS . . . . . . . . . . . . . . . . . . . . . .14-15
2.7.1 20/40/60-minute Push-Button Timer . . . . . . . . . . . . . . . . . . . .14
2.7.2 20-minute Lighted Push Button . . . . . . . . . . . . . . . . . . . . . . . .14
2.7.3 Dehumidistat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.7.4 60-minute Crank Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-17
3.1 QUARTERLY MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . .16-17
3.2 A
NNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-18
Table of Contents
When the outside temperature is below -5°C (23°F), recovery of heat or energy
creates frost in the core.
To maintain its proper operation, the unit is programmed to defrost the recovery
core. The defrost frequency varies according to the outside temperature.
During the defrost cycle, the unit shifts to maximum speed and the dampers close.
After defrosting, the unit returns to the operating mode selected by the user.
1.
Defrosting Mode
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