Acme PP-32 - Manual (Page 33)

33
PP-32
KOOLMASTER PP-32
REV.01
TRANSITION BETWEEN SIDEWALL AND
TUNNEL VENTILATION MODES:
The following section describes the vent doors and curtain's behavior
when the transition between sidewall ventilation (vent doors) and tunnel
ventilation is being done. These steps are automatically performed by
the controller.
VENT DOORS TO TUNNEL :
1. Vent doors stop operating;
2. The tunnel curtain opens during the Pre-Opening time;
3. Fans of the first tunnel stage turn on;
4. The tunnel curtain automatically adjusts the static pressure level,
until it reaches Lo Static Pressure Limit + 0.01"WC;
5. Vent doors close until the static pressure level reaches Hi Static
Pressure Limit - 0.01"WC;
6. Steps 4 and 5 are repeated until the vent doors run for over 30
seconds without reaching Hi Static Pressure Limit - 0.01"WC;
The house is now in tunnel mode.
TUNNEL TO VENT DOORS:
1. Tunnel fans are turned off when the temperature decreases and
reaches the first non-tunnel stage;
2. The tunnel curtain automatically adjusts the static pressure level,
until it reaches Hi Static Pressure Limit - 0.01"WC;
3. Vent doors open until the static pressure level reaches Lo Static
Pressure Limit + 0.01"WC;
4. Steps 2 and 3 are repeated until the tunnel curtain runs for over 30
seconds without reaching a static pressure of Hi Static Pressure
Limit - 0.01"WC;
The house is now in sidewall ventilation mode (vent doors).