Carrier Apollo 48HJ004-024 Instruction Manual

Installation, Operation, and
Troubleshooting Instructions
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 com-
munication bus. The rooftop unit can then be used as part of
a system which is controlled by devices on the communi-
cation bus. The thermostat and communication bus wiring
must be field-installed.
Do not turn on unit power until Apollo control and ther-
mostat 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 ex-
panded to meet whatever number of single zone systems are
required.
The Temp System thermostat maintains proper tempera-
tures by controlling the amount of heated or cooled air sup-
plied to the area it is installed in or the area it controls (if
using a Remote Room Sensor).
Each thermostat is responsible for controlling the tem-
perature conditions in its space. Each thermostat will main-
tain its own independent occupied/unoccupied time sched-
ule and heating/cooling set points. This allows the user to
program the Temp System thermostat so that it will maintain
different temperature ranges at different times.
Temp System Components —
tem 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
system can have a timeclock that will broadcast time to the
rest of the system. See Fig. 2.
TEMP SYSTEM THERMOSTAT — The MST-01ES (with
timeclock) and MS-01ES (without timeclock) Temp System
thermostats (see Fig. 3) have the following features:
• controls temperature to user defined set points
• eliminates 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 and cooling stages.
APOLLO CONTROL — The Apollo control (see Fig. 4) has
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.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 1 4 4 PC 111
Tab 1a 1b 6a 6b
The Carrier Temp System
The Carrier Temp Sys-
Catalog No. 534-800 Printed in U.S.A.
The Apollo control must be used in conjunction with a
Carrier MST-01ES or MS-01ES master thermostat.
Figure 5 shows the Apollo control factory-installed in a roof-
top unit.
Fig. 1 — Carrier Temp System Components
Fig. 2 — Temp System Communication
Fig. 3 — Temp System Thermostat
(MST-01ES Shown)
Form 48/50HJ,TJ-1SI
48/50HJ004-024
48/50TJ004-028
Apollo Control
Pg 1 9-94 Replaces: New