Carrier ZONE-MIZER 50ME - Manual (Page 6)

Accessories and factoryii'stalled options
Hot water/glycol heating (SOME) —
Often, such as when renovating existing
buildings, a heating plant is available.
For these applications, Carrier’s hot
water/glycol heating unit may be ideally
suited Each zone module has its own
high-capacity heating coil All controls,
solenoid operated shutoff valves and
balancing valves are included. No
internal piping or wiring required.
Heaters are designed for and in­
tended to be operated with a glycol/
water solution of 20% minimum glycol
concentration for freeze-up protection.
(Factory-Installed Option).
Roof curb supports unit and frames
roof openings to provide a strong,
watertight interface between unit and
roof. Galvanized, 14-gage steel, 2-piece
construction minimizes installation time
and costs. (Accessory)
Modulating outdoor air control pro
vides year-round ventilation with out­
door air. An outdoor air thermostat
locks out compressors to permit “free
cooling” with outdoor air. (Factory-
Installed Option)
Roll filter package includes 65 ft of
2-in. thick filter media, automatic media
advance switch and a motor. The run­
out switch turns on the filter light in the
remote control center to show when the
media needs replacing (Factory-
Installed Option)
Powered exhaust damper has con
trols to operate outdoor air fans to
exhaust return air when unit is in “free
cooling”
mode. (Factory-Installed
Option)
Cooling only unit (SOME) — Unit is
available with all heating controls but
without heater assemblies. Included are
24-volt control circuits and 115-volt
power terminals for 2-stage control of
steam heating coils field installed in the
unit or in the zone ductwork.
Electric heat (SOME) — Each zone
module is equipped with its own inde­
pendent heater assembly. Two- and
3-stage heat is available to provide close
air temperature control without wide
temperature swings associated with
rapid-cycle, full-on, full-off systems.
Three heat-to-cool ratios are avail­
able: .75.1, 1.1 and 1.5:1 to match
almost any heating load requirement.
(Factory-Installed Option)
t
Zone thermostat (24 volts) provides 2-stage heating
and one- or 2-stage cooling for control of individual
modules. Matching subbases are available with or with­
out tamperproof switches and automatic changeover.
(Accessory)
Remote control panel (24 volts) — This decorative
central control for the entire unit has switches for HEAT,
COOL, AUTOMATIC CHANGEOVER, OFF and
DAY/NIGHT settings; dial to adjust outdoor air damper
to rapidly ventilate conditioned spaces. A dirty filter
warning light and knockouts for additional warning lights
are also provided. (Accessory)