Carrier TM016-028, 50HJQ004-016, TM004-014, 48-50TJ, 48-50TF User Manual
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48/50HJ004-024
*Where “XX” will be “04,” “16,” or “32.”
Fig. 1 — Carrier TEMP System Components
HVAC —
Heating, Ventilation, and Air Conditioning
50TFQ004-012, 48/50TF,TM004-014
50HJQ004-016, 48/50TJ,TM016-028
Apollo Control
Installation, Operation, and
Troubleshooting Instructions
SAFETY CONSIDERATIONS
Read these instructions entirely before modifying the base
rooftop unit.
Before beginning any modification, make sure all power is
disconnected to the unit and locked out. Fai lure to disconnect power supply prior to servicing may result in serious
injury. All wiring must comply with applicable national
and local codes.
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance
functions of replacing filters. All other operations should be
performed by trained service personnel. When working on airconditioning equipment, observe precautions in the literature,
tags and labels attached to the unit, and other safety precautions
that may apply.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
fire extinguishers available for all brazing operations.
When removing panels from the unit, be careful not to
damage the roof or other surfaces with the panels.
GENERAL
The Apollo control is a relay pack which is factory wired
and mounted in the Carrier rooftop unit. The Apollo control
allows the unit to be connected to a thermostat and a communication bus. The rooftop unit can then be used as part of a
system which is controlled by devices on the communication
bus. The thermostat and communication bus wiring must be
field installed.
The TEMP System thermostat maintains proper temperatures by controlling the amount of heated or cooled air supplied
to the area in which it is installed or the area it controls (if using
a remote room sensor).
Each thermostat is responsible for controlling the temperature conditions in its space. Each thermostat w ill maintain its
own independent occupied/unoccupied time schedule and heating (if applicable) and cooling set points. This allows the user
to program the TEMP S ystem thermost at so t hat it will mai ntain different temperature ranges at different times.
TEMP System Components —
System consists of one or more thermostats that communicate
by way of a communication bus. Each thermostat controls an
Apollo control which in turn controls the Carrier rooftop unit.
See Fig. 1.
Each thermostat can be connected to others to provide communication between thermostats. Only one thermostat per system can have a timeclock that will broadcast time to the rest of
the system. Se e Fig . 2.
TEMP SYSTEM THERMOSTATS — The 33CSTMT-01,
or 33CSVMT-XX (with timeclock) and 33CSTM-01 or
33CSVM-XX (without timeclock) TEMP System thermostats
(see Fig. 3) have the following features:
• controls temperature to user- defin ed set points
• eliminates the need for external timeclocks, manual
override timer, night low limit thermostat, battery
backup, or unit time guard
• operates with 3 system switch es for supply-air fan and
the unit heating (if applicable) and cooling stages
NOTE: For 33CSVM(T)-XX thermostats, the “XX” will be
either “04,” “16,” or “32.”
The Carrier TEMP
Do not turn on unit power until Apollo control and thermostat have been installed. Unit is shipped with loose leads
which may cause electrical shock or death.
Carrier TEMP System —
usually consists of more than one thermostat and can be expanded to meet whatever number of single zone systems are
required.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 111444
Tab 1a1b5a5a6a6b
PC 111 Catalog No. 534-80082 Printed in U.S.A. Form 48/50H,T-15SI Pg 1 8-01 Replaces: 48/50H,T-2SI
The Carrier TEMP System
APOL L O CO NT R OL — The Apollo control (see Fig. 4) has
Fig. 5 — Apollo Control Factory-Installed
In Typical Unit
the following features:
• serves as interface between thermostat, Carrier rooftop
unit, and any external field-supplied sensors
• powered by 24 vac/10 va; supplies thermostat with
10 vdc. This power is supplied by the Carrier rooftop
unit.
The Apollo control must be used in conjunction with a
Carrier 33CSTM(T)-01 or 33CSVM(T)-XX master thermostat. Figure 5 shows the Apollo control factory-installed in a
rooftop unit.
*Where “XX” will be “04,” “16,” or “32.”
Fig. 2 — TEMP System Communication
WIRING TO
THERMOSTAT
APOLLO
CONTROL
CONTROL
WIRING
Fig. 3 — TEMP System Thermostat
(With Timeclock Shown)
NOTE: The indicator lights verify each mode of operation.
Fig. 4 — Apollo Control
INSTALLATION
Wiring Requirements —
the TEMP Syst em a re:
THERMOSTAT TO THERMOSTAT COMMUNICATION
BUS — Use field-supplied, 18 gage, 3-conductor, shielded,
stranded wire, color coded (red, black, green), plenum rated (if
required by code). Be sure wire is long enough t o run from
thermostat to thermostat in daisy-chain configuration.
THERMOSTAT TO APOLLO CONTROL — Use fieldsupplied, 18 gage, 5-conductor, shielded, stranded wire,
color-coded (red, white, blue, yellow , gr een), plenum rated (if
required by code). Be sure wire is long enough to run from
thermostat to the Apollo control. The Apollo control is easily
accessible in the Carrier rooftop unit. It is found in the unit
control box.
IMPORTANT: Do not run the thermostat communication
bus and the control wire in the same conduit for more than
5 ft. Never run wires near any c able carrying AC voltage.
For further wiring information, consult your local Carrier
distributor.
Factory-supplied power required by each Apollo control is
24 vac/10 va. T ypical wiring is 18-gage thermostat wire. Power
to the Apollo control may be wired to the Carrier rooftop unit
transformer if transformer is of sufficient va capacity. Otherwise, a dedicated transformer has been factory provi ded. The
maximum load of a relay contact is 24 vac, 1 amp. A short in
the field wiring or Carrier rooftop unit will cause non-warranty
damage to the relay board. Test wiring before attaching to
Apollo control.
Call your local Carrier representative for more information
about wiring the Apollo control as needed.
2
The wiring requirements for
Thermostat Installation —
stallation by determining where the thermostat will be located.
In most cases, this will be pre-determined by the building
plans.
Locate the thermostat on an interior wall, about 5 ft from the
ground. The thermostat should be located away from direct
sunlight, drafts, or interior heat sources which may influence
temperature readings.
The thermostat may also be m ounted in a re mote location
with the use of an optional remote room sensor. Refer to the
specific thermostat information for more details on thermostat
installatio n.
Begin the thermostat in-
Wiring Connections
Electric shock can cause injury or death. Ensure power to
the rooftop unit has been disconnected, before wiring.
WIRE APOLLO CONTROL TO THERMOSTAT — Wire
each thermostat to its respective Apollo control as shown in
Fig. 6. Make wiring connections at the wiring connector board
of the thermostat.
WIRE THERMOSTAT TO COMMUNICATION BUS —
The thermostat is connected to the communication bus through
the thermostat wiring connection block. Connect the black, red,
and green wires from the communication bus to the thermostat
wiring connection block. See Fig. 6. To connect other devices
to the communication bus, refer to the application manual for
that device.
Provide Power To Apollo Control —
ing has been completed, provide power to the Apollo control.
Once power has been provided, the Apollo control will power
the thermostat. The heating (if applicable) and/ or cooling set
points will appear on the thermostat display screen. The thermostat is now ready to be programmed. If the display is blank
or blinking, recheck the wiring connections between the thermostat and Apollo control.
After the wir-
OPERATION
There are 3 system switches which are used to control operation at the thermostat: Heat, Cool, and Fan. The Heat and
Cool switches can be set to either AUTO. or OFF position. The
Fan switch can be set to either AUTO or ON position. When
the fan is running, the F AN indicator will be shown on the thermostat display screen. When Cooling mode is energized, the
COOL indicator will be shown on the thermostat display
screen. When Heating mode is energized, the H EAT indicator
will be shown on the thermostat display screen. When the
second stage of heating or cooling is energized, a decimal point
is displayed between the heating and cooling set points.
AUTO. Fan Mode —
system energizes heating or cooling. The only exception is
when the thermostat controls a gas heating rooftop unit. In this
application, the thermostat will allow the rooftop unit to control
the fan during Heating mode, and the fan will run in Cooling
mode.
ON Fan Mode —
ing the occupied mode. In unoccupied mode, t he fan wil l only
operate when a system mode is energized.
AUTO. Heating Mode —
AUTO. position, the Apollo control will energize heating when
the heating demand is 1.5° F or greater. The second stage of
heating will energize when the demand becomes 2.0° F or
greater.
OFF Heating Mode —
OFF position, the Apollo control will not allow the rooftop unit
to energize heating.
AUTO. Cooling Mode —
to AUTO. position, the Apollo control will energize cooling
when the cooling demand is 1.5° F or greater. The second stage
of cooling will energize when the demand becomes 2.0° F or
greater.
OFF Cooling Mode —
OFF position, the Apollo control will not allow the rooftop unit
to energize cooling.
Temperature Trend Staging —
ture Trend Staging option has been configured at the thermostat, the thermostat tracks the tempera tures at regular interva ls
in each cooling or heating mode. As long as the space temperature is improving, the Apollo control will not allow the second
stage to be energized. If the space temperature stays the s ame
or the demand becomes greater, the second stage will energize.
Heating Lockout —
ture set point has been configured, and the heating lockout option has been configured to ON, the Apollo control will not allow heating to energize when the outdoor-air temperature rises
above the heating lockout set point.
Cooling Lockout —
ture set point has been configured, and the cooling lockout option has been configured to ON, the Apollo control will not allow cooling to energize when the outdoor-air temperature
drops below the cooling lockout set point.
Time-Delay Relay —
control utilize a 5-minute time delay between the different
modes of operation for the rooftop unit. When a mode of operation is deenergized, another mode cannot begin for 5 minutes.
The fan will energize any time the
The fan will operate continuously dur-
When the Heat switch is set to
When the Heat switch is set to
When the Cool switch is set
When the Cool switch is set to
When the Tempera-
When the heating lockout tempera-
When the cooling lockout tempera-
The thermostat and the Apollo
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