Robertshaw SlimZone Deluxe ZONE CONTROL SYSTEM - Manual (Page 11)

Bypass dampers should be installed in the main supply plenum upstream from turning
vanes, transitions, and zone dampers. Bypass air may be directed through rigid pipe to a
common return air plenum or above the ceiling if this area is used as a common return.
Refer to Bypass Sizing Chart, Page 10.
6.10 CURRENT LIMITED OUTPUT TERMINALS
All output circuits on the SlimZone Deluxe control panel incorporate a self-resetting current
limiting device which provides protection against excessive current draws caused by circum-
stances such as wiring shorts on an output. This device, referred to as a poly-fuse, is activat-
ed in general when the current draw exceeds 2.5 amps. The value and the duration of the
excess current is taken into account. The poly-fuse will allow excess currents of very short
duration (i.e., spikes) in order to prevent circuit interruption by noisy lines or occasional minor
surges. In its current limiting mode, the poly-fuse reduces the output current to milliamps.
Notes:
•
The low leakage current may be sufficient to produce a small voltage reading when
measured with a volt meter with a high input impedance.
• When the cause of the excess current has been removed and the current draw is
returned to a value below 2.5 amps at 68ºF (20ºC), the poly-fuse will reestablish full out-
put current; in some instances this may take up to twenty seconds. The poly-fuse elimi-
nates the need to replace blown fuses.
• Refer to the Logic Panel Specifications Section (Page 28) for the current ratings and
other environmental temperatures.
6.11 LED
There are 11 LEDs on the SlimZone Deluxe Master Board. The normal LED is green, and
indicates the panel is functioning normally when it is flashing. The delay LED is yellow and
indicates the delay function is active when it is on. There are 3 green zone LEDs located to
the right of each zone terminal. The damper is open when the green LED is on. There are 2
red LEDs for W1 and W2/O/B. The equipment is powered when the red LED(s) are on. There
are 2 yellow LEDs for Y1 and Y2. The equipment is powered when the yellow LED(s) are on.
There are 2 green LEDs for G1 and G2. The equipment is powered when the green LED(s)
are on.
There are 3 LEDs on the SlimZone Deluxe Expander Board. The normal LED is green; the
expander board is connected properly when this LED is flashing. There are 2 green zone
LEDs located to the right or left of each zone terminal. The damper is open when the green
LED is on.
7. ROBERTSHAW SLIMZONE DELUXE SEQUENCE OF OPERATION
7.1 INITIAL POWER UP
Unless the SW7 Time Delay Override button is depressed, all minimum OFF time delays are initi-
ated on power up. Four minutes must elapse before the first stage compressor will be energized.
A minimum of 2 minutes must elapse before heating will be energized including emergency heat
for heat pumps. However, the fan output can be energized during the time delay period.
SlimZone Deluxe 7