4
LEGEND FOR TABLES 1-7
CONTROL OPTIONS
The units are offered with a wide variety of factory-mounted con-
trols that regulate the volume of air delivery from the unit and re-
spond to cooling and heating load requirements of the conditioned
space. All control packages can operate stand-alone and will fulfill
the thermal requirements of a given control space. These devices
are available in both pneumatic and electronic arrangements. The
3V
™
and ComfortID
™
control types are communicating controls
which can be integrated into a CCN building system. A number of
DDC (direct digital control) control packages by others are avail
-
able for consignment mounting as indicated.
Control offerings are:
A: Analog Electronic
C: VAV
P: Pneumatic
V: VVT
®
(45M,N,R units only)
N: None or DDC by others
Each control approach offers a variety of operating functions; a
control package number identifies combinations of control func
-
tions. Because of the variety of functions available, circuit dia-
grams, operating sequences, and function descriptions are con-
tained in separate Application Data publications. Refer to the spe-
cific control publication for details.
VAV CCN Controls and OPEN VAV Controls
Pressure independent control packages are available with or with-
out heat. These controls provide occupied and unoccupied heating
and cooling, demand controlled ventilation (DCV), and zone hu
-
midity control. They can be networked together via either
BACnet™
1
or Carrier Comfort Network
®
(CCN) protocols to pro-
vide integrated system operation of all components, including the
operation of air source equipment. These controls may be used in
a stand-alone terminal, or as part of the Carrier DDC control sys
-
tem. All control arrangements include a standard inlet flow sensor,
control enclosure, SCR (silicone control rectifier) fan speed con
-
troller, class II 24-volt power transformer, and fan contactor. Sev-
eral types of room sensors may be ordered, with and without set
point adjustment, and with integral CO
2
sensors.
VVT CCN Controls and OPEN VVT Controls
Pressure dependent control packages are available with or without
hot water, electric heat, or SSR (solid-state relay) electric heat.
They are designed to be an integral part of the Carrier Comfort
Network (CCN) or Carrier i-Vu
®
Open Digital Control Systems,
for parallel flow units only. All control arrangements include a
standard inlet flow sensor, control enclosure, SCR fan speed con
-
troller, 24-volt transformer and fan relay.
Analog Electronic Controls
Pressure independent control packages are available with or with-
out hot water or electric heat, automatic or remote night shutdown,
and automatic night setback. All control arrangements include a
standard inlet flow sensor, control enclosure, SCR fan speed con
-
troller, 24-volt transformer, fan relay, and wall thermostat to match
the control type.
Pneumatic Controls
Pressure independent control packages are available with or with-
out hot water or electric heat, night shutdown and/or unoccupied
heating. All control arrangements include a standard inlet flow
sensor and SCR fan speed controller.
Single function controller: Provides single function, i.e., DA-NO.
Multi-function controller: Capable of providing DA-NO, DA-NC,
RA-NC or RA-NO functions.
Direct Digital Controls (By Others)
Control sequences are available for factory installation of numer-
ous field-supplied controls from various manufacturers. All pack-
ages include a standard inlet flow sensor, control enclosure, SCR
fan speed controller, 24-v transformer, and fan relay.
Contact Carrier for information on mounting field-supplied
controls.
No Control Units
Control sequences are also available to provide a control box on
units supplied with no factory-installed controls. These arrange
-
ments include a standard inlet flow sensor, control enclosure, SCR
fan speed control, 24-v transformer, and fan relay.
INSTALLATION
Step 1 — Install Fan-Powered Box
SELECT LOCATION
1. Units should be installed so that they do not come in con-
tact with obstacles such as rigid conduit, sprinkler piping,
Greenfield flexible metal covering, or rigid pneumatic tub
-
ing; such contact can transmit vibration to the building
structure, causing objectionable low frequency noise.
2. Units should never be installed tight against concrete slabs
or columns, as vibration transmission is amplified in this
condition.
Table 6 — 45Q Dedicated Outdoor-Air System Unit Weights
45Q DOAS
BOX SIZE
UNIT WITH COOLING
COILS (lb)
WITH DDC OR
ANALOG
CONTROLS (lb)
WITH ELECTRIC HEAT
(lb)
WITH HOT WATER (lb)
2-Row 4-Row 6-Row 1-Row 2-Row
3 115 125 135 +9 +30 +10 +12
5 150 160 170 +9 +35 +12 +14
Table 7 — 45R Unit Weights
45R
SIZE
UNIT ONLY
(lb)
WITH
PNEUMATIC
CONTROLS
(lb)
WITH DDC OR
ANALOG
CONTROLS (lb)
WITH ELECTRIC
HEAT (lb)
WITH HOT WATER (lb)
1-Row 2-Row
2 91 +4 +9 +25 +9 +12
4 106 +4 +9 +25 +9 +12
DDC — Direct Digital Controls
DOAS — Dedicated Outdoor-Air System
1. Third-party trademarks and logos are the property of their respective
owners.
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