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PRE-INSTALLATION
General
The 45J,K,Q constant volume (series) and 45M,N,R variable vol-
ume (parallel) fan powered boxes (see Fig. 2 and 3) can be
equipped to provide pressure independent, variable volume
(VAV). All units can also be equipped with factory-installed ana-
log electronic, pneumatic, or variable air volume (VAV) controls.
Units are available with factory-installed electric or hot water heat.
Fig. 2 — Parallel Flow Unit (45M Shown)
Fig. 3 — Series Fan Unit (45Q DOAS Shown)
The 45J/M units are standard fan powered terminal units. The
45K/N units are quiet fan powered terminal units. The 45Q/R
units are low profile fan powered terminal units.
CONTROL OFFERINGS
Each 45J, 45K, 45M, 45N, 45Q, 45R unit is supplied with a four
quadrant multi-point center averaging airflow sensor that provides
an amplified differential pressure that is proportional to the unit
airflow. The output from this probe is used to provide a flow signal
to both pneumatic and electronic controls.
Control options include VAV, VVT, analog electronic, and pres-
sure-independent pneumatic.
Pneumatic controls are available with linear actuators and single-
function or multi-function controller. The multi-function control-
ler provides a simple switchover from normally open to normally
closed applications.
Electronic control units feature a factory-installed enclosure that
provides easy access for field connections.
STORAGE AND HANDLING
Inspect for damage upon receipt. Shipping damage claims should
be filed with shipper at time of delivery. Store in a clean, dry, and
covered location. Do not stack units. When unpacking units, care
should be taken that the inlet collars and externally mounted com-
ponents do not become damaged. Do not lift units using collars,
sensors, or externally mounted components as handles. If a unit is
supplied with electric or hot water heat, care should be taken to
prevent damage to these devices. Do not lay uncrated units on end
or sides. Do not stack uncrated units over 6 ft high. Handle with
care. Do not handle control boxes by tubing connections or other
external attachments. Tables 1-7 shows component weights.
INITIAL INSPECTION
Once items have been removed from packing, check carefully for
damage to duct connections, coils, or controls. File damage claim
immediately with transportation agency and notify Carrier.
NOTE: Remove all packaging material and foreign material from
unit and ensure the blower wheel moves freely before installation.
Units are shipped with a cardboard ring in one side of the fan inlet
that MUST be removed. This ring is accessible from the unit's
plenum.
Unit Identification
Each unit has 2 main labels attached to the casing. The fan unit la-
bel (Fig. 4) lists the model number, supply voltage requirements,
motor horsepower and overcurrent protection requirements. The
airflow label (Fig. 5) lists the model number, unit size, factory or-
der number and location. The location "tag" indicates where the
unit is intended for installation. There may be other labels attached
to the unit, as options or codes may require. Read all labels on a
typical unit before attempting installation. Control boxes are as-
sembled as indicated on the identification label.
Contact your local Carrier representative for more information.
45N
5 — 12
MODEL NO
277
MOTOR
VOLT
1/2
HP
480
HEAT
VOLT
12.0
KW
FPB—313
TAG:
MOTOR(S) ARE THERMALLY PROTECTED
21.920
MIN. SUPPLY CIRCUIT AMPS
MAX. FUSE OR HACR CIRCUIT BREAKERS
MAX. OUTLET AIR TEMPERATURE 200 F
UNIT DESIGNED TO OPERATE AT NO LESS THAN 0.2 IWG STATIC PRESSURE.
ZERO CLEARANCE FROM UNIT, CONNECTED DUCT AND/OR PLENUM
TO COMBUSTIBLE MATERIAL.
Fig. 4 — Fan Unit Label
010
599049
ITEM:
ORDER:
45J
MODEL:
DUCT SIZE:
480
03
LINE VLT:
PH:
01
24
STEP:
CTL VOLT:
5.60
15 AMP 600V
MIN CIR AMP:
MAX. FUSE OR HACR CIRCUIT BREAKERS
MIN WIRE SIZE
(COPPER CONDUCTORS ONLY):
(SUITABLE FOR AT LEAST 75 DEGREES CENT.)
VAV – 05 – 01
TAG:
Fig. 5 — Airflow Label
2
FAN UNIT
014
10 579600
C
CODE
60
1
HZ
PHASE
3.110
FLA(EA)
60
3
HZ
HZ
PHASE
14.43
AMPS
REPLACEMENT LINE FUSE
25 AMP 600V
25.000
AMPS
AIR
DUCT HEATER
UP
FLOW
C – 599049 – 10
REV:
SN:
12 X 10
0375
MIN FPM:
60
2.50
3.00
HZ:
KW:
AMP:
50
CTL VA:
INTERNAL FUSE
15.00
AMP
12AWG
REV:
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