Ceiling Cassette
The SLIMLINE PERFORMER Ceiling Cassette – Ductless Mini-Split
5
Technical Manual : AIR 8-105.5
FIELD INSTALLED ACCESSORIES
Thermostats
Aquastat
Mechanical thermostat: cooling only
Mechanical thermostat with manual changeover: c 1 stage of heat
Digital thermostat with auto changeover: up to 2 stages of cooling and heating
Digital programmable thermostat with auto changeover: up to 2 stages of cooling and heating
Carel Wall Sensor
For units fitted with the Carel microprocessor controller, a temperature sensor and set point adjustment
module with overrride button shall be mounted on the wall.
Carel Wall Stat
For units fitted with the Carel microprocessor controller, a digital thermostat shall be mounted on the
wall.
Display Module
For units fitted with the Carel microprocessor controller, a hand-held display module shall be supplied for
set point changes, control adjustments and unit troubleshooting. Note: at least one display module per
facility is recommended.
Spare Filters
One set of replacement filters.
Fresh Air Duct Collars
The Cassette chassis features two or three fresh air knockouts depending on model size. Any number
can be removed to allow fresh air to enter the unit. A duct collar is available for fastening to the unit to
allow connection of a 3” flexible duct. A replacement filter is included with fresh air duct collars to aid in
balancing the amount of return air and fresh air delivered to the unit’s coil.
Supply Air Duct Collars
A limited amount of conditioned air can be ducted from the unit by removing the branch duct knockouts
(up to 2 per unit) and connecting flexible ducting. In the case of the 2 x 2 model units, there are a total of
three knockouts positioned on three of the unit sides (one per side). In the case of the other model units,
a total of four knockouts are available and are arranged in pairs along two of the unit sides (two per
side). A duct collar is available to allow connection of a 5” or 6” (depending on units size) flexible duct to
the Cassette.
On the 2 x 2 range of units, it is recommended that only one of the three branch duct knockouts are
utilized, due to the small capacity of the unit.
Shroud
A sheet metal shroud is available to cover the unit housing when the unit is not mounted in a drop
ceiling. Painted Sky White with hammertone finish.
Two Position Spring
Return Control Valves
For control of chilled water or hot water flow, a three-way, three-port diverting type valve or a two-way,
two-port control valve is supplied loose for on site installation. Actuation is via a 24V signal from the
unit’s electrical panel.
On a four pipe system where two-way valves are specified, the chilled water valve will be a normally
closed type. The hot water valve will be a normally open type. Where three-way valves are specified, the
same type valve will be supplied for both coils and should be installed normally closed to the coil in the
case of the chilled water coil and normally open to the coil in the case of the hot water coil.
On a two pipe changeover system where a two-way valve is specified, a normally closed valve is
supplied. Where a three-way valve is specified, this should be installed normally closed to the coil. In
both cases, a pipe mounted changeover thermostat is recommended to monitor water supply
temperature and allow action of the valve accordingly.
Valve Packages: Two
Position Spring Return
Control Valve with Two
Shut-Off Valves
For control of chilled water or hot water flow, a three-way, three-port diverting type valve piped with two
shut- off valves and a bypass leg, or a two-way, two-port control valve piped with a shut-off valve and a
second separate shut-off valve is supplied loose for on site installation. Actuation is via a 24V signal from
the unit’s electrical panel.
On a four pipe system where two-way valves are specified, the chilled water valve will be a normally
closed type. The hot water valve will be a normally open type. Where three-way valves are specified, the
same type valve will be supplied for both coils and should be installed normally closed to the coil in the
case of the chilled water coil and normally open to the coil in the case of the hot water coil.
On a two pipe changeover system where a two-way valve is specified, a normally closed valve is
supplied. Where a three-way valve is specified, this should be installed normally closed to the coil. In
both cases, a pipe mounted changeover thermostat is recommended to monitor water supply
temperature and allow action of the valve accordingly.
Low Ambient Kit
Fan speed control for compressor operation down to 0°F outside temperature.
