48/50HJ004-024
50TFQ004-012, 48/50TF,TM004-014
50HJQ004-016, 48/50TJ,TM016-028
Apollo Control
Installation, Operation, and
Troubleshooting Instructions
The TEMP System thermostat maintains proper tempera-
SAFETY CONSIDERATIONS
tures 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).
Read these instructions entirely before modifying the base
rooftop unit.
Each thermostat is responsible for controlling the tempera-
ture conditions in its space. Each thermostat will maintain its
own independent occupied/unoccupied time schedule and heat-
ing (if applicable) and cooling set points. This allows the user
to program the TEMP System thermostat so that it will main-
tain different temperature ranges at different times.
Before beginning any modification, make sure all power is
disconnected to the unit and locked out. Failure to discon-
nect power supply prior to servicing may result in serious
injury. All wiring must comply with applicable national
and local codes.
TEMP System Components — The Carrier TEMP
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 com-
munication between thermostats. Only one thermostat per sys-
tem can have a timeclock that will broadcast time to the rest of
the system. See 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:
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. 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 air-
conditioning 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.
• controls temperature to user-defined 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 switches 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.”
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 communi-
cation 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.
Do not turn on unit power until Apollo control and thermo-
stat have been installed. Unit is shipped with loose leads
which may cause electrical shock or death.
HVAC
—
Heating, Ventilation, and Air Conditioning
Carrier TEMP System — The Carrier TEMP System
usually consists of more than one thermostat and can be ex-
panded to meet whatever number of single zone systems are
required.
*Where “XX” will be “04,” “16,” or “32.”
Fig. 1 — Carrier TEMP System Components
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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
Book 1
1
1
4
4
4
Tab 1a 1b 5a 5a 6a 6b
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Thermostat Installation — Begin the thermostat in-
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 mounted in a remote location
with the use of an optional remote room sensor. Refer to the
specific thermostat information for more details on thermostat
installation.
Wiring Connections
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 — After the wir-
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 ther-
mostat is now ready to be programmed. If the display is blank
or blinking, recheck the wiring connections between the ther-
mostat and Apollo control.
OPERATION
There are 3 system switches which are used to control oper-
ation 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 FAN indicator will be shown on the ther-
mostat display screen. When Cooling mode is energized, the
3
NOTE: Refer to Product Support Bulletin No. 93-005 for shielded wire applica-
tions when wiring the thermostat to the Apollo control and for all communication
bus wiring connections or contact your local representative.
Fig. 6 — Thermostat and Apollo Control Wiring
4
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TROUBLESHOOTING
See Fig. 7-10 for Apollo factory, control, and system wiring.
Blank Display or Blinking Display at the
Thermostat
1. Check to ensure there is at least 20.5 vac across the 2 termi-
nals labelled 24 vac. If there is not at least 20.5 vac, check
the unit transformer which is powering the Apollo control.
2. If an ac voltage between 20.5 and 30 vac is read, check for
10 vdc between the terminals labelled WHT and RED. If
there is 0 vdc between the terminals, replace the Apollo
control. If a value between 1 and 10 vdc is read, check the
wiring between the thermostat and the Apollo control.
3. If the thermostat display is blinking on and off, this is an
indication that there is a communication problem be-
tween the thermostat and the Apollo control. The thermo-
stat and the Apollo control communicate on the blue and
yellow wires. If either one is shorted, open, or crossed, it
will cause the thermostat display to blink.
To check the wiring between the thermostat and the Apollo
control:
1. Remove the thermostat and connector board.
5
LEGEND
COM
— Communication
ECONO — Economizer
NC
— Normally Closed
Fig. 7 — Factory-Supplied Wiring to Rooftop Unit and Apollo Control
*Filter status switch and humidity sensor cannot function
simultaneously. Only one sensor can be wired.
LEGEND
Contactor
IAQ
NC
—
—
—
—
—
Indoor Air Quality
Normally Closed
Normally Open
C
—
—
—
—
CHAS
COM
DX
Ground
Common
NO
Direct Expansion
OAT
SAT
Outdoor-Air Thermostat
Saturated-Air Temperature
Factory Wiring
ECON — Economizer
GND
HT
—
—
Ground
Heat
Field Wiring
Fig. 8 — Apollo Control Wiring Schematic — 48/50HJ, 3 to 20 Ton Units;
48/50TF,TM, 3 to 12-1/2 Ton Units; 48/50TJ,TM, 15 to 25 Ton Units; 50HJQ/TFQ, 3 to 10 Ton Units
6
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*Filter status switch and humidity sensor cannot function
simultaneously. Only one sensor can be wired.
LEGEND
Contactor
IAQ
NC
—
—
—
—
—
Indoor Air Quality
Normally Closed
Normally Open
C
—
CHAS — Ground
COM
DX
—
—
Common
NO
Direct Expansion
OAT
SAT
Outdoor-Air Thermostat
Saturated-Air Temperature
Factory Wiring
ECON — Economizer
GND
HT
—
—
Ground
Heat
Field Wiring
Fig. 9 — Apollo Control Wiring Schematic — 50HJQ, 121/2 and 15 Ton Units
7
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Copyright 2001 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 534-80082 Printed in U.S.A. Form 48/50H,T-15SI Pg 8 8-01 Replaces: 48/50H,T-2SI
Book 1
1
1
4
4
4
Tab 1a 1b 5a 5a 6a 6b
Download from Www.Somanuals.com. All Manuals Search And Download.
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