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Minimum on/off times (short cycle protection)
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Occupied/unoccupied cycle capability
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Manual or automatic changeover
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Smoke detector input
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All low voltage wiring
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No batteries required
1.3
SAFETY INSTRUCTIONS
•
Sudden equipment operation may cause serious injury from moving parts.
disconnected until installation is complete.
•
Sharp edges may cause damage to wires. Use care during the installation.
•
Installation must be done in accordance with all applicable codes and regulations.
•
Installer should touch a grounded metal object before handling any of the modules in the
SlimZone Premier control system, to avoid potential loss of internal computer programs due to
static discharge.
2.
APPLICATION AND DESIGN CONSIDERATIONS
A.
Only DSL-520P communicating zone thermostats may be used.
B.
Air conditioning control systems require that the air handling equipment be properly sized for
the application; otherwise, satisfactory temperature control may not be realized.
C.
It is recommended that system installations be limited to thirty (30) tons of equipment capacity.
Enerstat dampers are designed to work only with low pressure systems (1.0" WC or less).
D.
Oversizing of HVAC equipment is not recommended. In most cases it is better to slightly
undersize than oversize.
E.
Extra consideration should be given in applications that require large amounts of cooling in cold
weather, such as buildings with a center or core area.
F.
At least two (2) stages of cooling and/or compressor unloading are highly desirable.
G.
Hot gas bypass should be considered on some commercial systems.
H.
If the HVAC unit is supplied with an economizer, it is recommended that the economizer
package be equipped with a relief air damper.
I.
The pressure drop across typical dampers is negligible and normally is not a factor when sizing
or calculating branch duct CFM.
J.
Balancing dampers should be installed ahead of all motorized zone dampers.
K.
Zone dampers should be installed ten (10) feet back from discharge grille when possible.
L.
Flex or lined duct is recommended on the last five (5) feet.
M.
A bypass damper must be installed on all systems of three (3) zones or more.
N.
The thermostats and motorized dampers may be located up to 300 feet (90m) from the control
module, using nonshielded 3 (dampers) and 4 (thermostat) conductor 18 - 24AWG copper
wires.
O.
A maximum load of 2.5 Amps may be switched by the output terminals, which complies with
Class 2 wiring code.
P.
System wires should be tagged to match the module terminal designations.
Q.
The addition of equipment heating and cooling limits, as provided by the SlimZone
Environmental module (SZEM), is strongly recommended and will greatly help in preventing
temperature swings as well as constant heating/cooling changeover.
2
Leave power
SlimZone Premier
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