Carrier 50MQ - Manual

Number One
Air Conditioning
Maker
e
Division ot Carrier Corporatio
Syracuse New York
Single-Package Heat Pump Units
The 50MQ units are completely self-contained
cooling and heating systems with provision for
addition of accessory electric heaters. They are
air-to-air heat pumps designed for outdoor installa­
tion. They may be connected into existing duct
systems which are properly sized and designed to
handle an air quantity of 400 to 500 cfm per ton
of cooling. Required connections include air ducts,
condensate drain, line and control power wiring.
Field-supplied filter must be installed in return air
duct. (See Table 1 for filter size.)
INSTALLER'S PRELIMINARY SURVEY
Step 1 — Inspect Equipment — File claim with
shipping company if shipment is damaged or
incomplete.
Step 2 — Complete or Consider the Following
before installing the 50MQ unit;
a. Consult local building codes for special installa­
tion requirements.
b. Provide sufficient space for coil air flow clear­
ance, wiring, and servicing unit. (See Fig. 1.)
c. Locate unit where supply and return air ducts
can be conveniently brought out to unit duct
connections.
d. Unit may be placed with duct side as close to
building as condensate drain, top removal, duct
connections and power connections will permit
Position unit so water or ice from roof will not
drop directly on top of unit or in front of coil
e. Make provisions for condensate drainage and
defrost water disposal. See Mounting Pad and
Cooling Cycle Condensate Disposal.
f. Roof installation method for 50MQ will depend
on building construction and special require­
ments of local building codes. Ensure roof will
support unit weight. See Mounting Pad for
details.
Table 1 — Installation Data (See Fig. 1.)
UNIT 50MQ022 50MQ027 50MQ032 50MQ037
OPER WT (lb) 315 330 340 353
DIMENSIONS
{ft-in») A 3- 6‘/4
B 3-
2
c* 2 - 3Ys
2
- 3%
2
- 3% 2- 7 %
D 1 - 1 OY 4 1 - 1 OV 4 1 - 1 0 ^ 4 1 - 1 OY 4
E
0
- 6 ^ 6
0
-
0
- óV.e
0
- 6V,6
F
0
-10“/,6
0
-10“/, 6
0
-10“/Ì6
0
-10“,(e
G
1
-- 1 6
1
— 1 6
1
— 1 ^/] 6 1-
DUCT CONN. S i d e ' b y - S i ( d € R e c t a n g u or
(ft-in.)
, , H
1 - 9%
Supply j 0
- \ Q X
K
1
- 9 %
Return 1
- 7 %
FILTER SIZEt (in.)
Disposable 20 X 25 20 X 25 15 X 20 (2)
1 5 X 20
20
X 20
Permanent 15 X 20
20
X 20
20
X 20 20 X 25
‘Dimension "C"
t Recommended includes 1 1/4-in built-in base support channels (2)
field-supplied filters are 1-in. thick
, ,,T
4-0 OVERHEAD AIR
SPACE REQUIRED
CHANNELS-2)
a OIAM HOLE-
CONTROL
WIRING CONN
l| DIAM HOLE-UNIT
LINE WIRING CONN „
REAR VIEW
■g ID SIDE CONDENSATE
DRAIN FITTING
SPACE REQUIRED FOR SERVICE ON
REAR OF UNIT IS I'-O"
© Carrier Corporation 1974
O SUPPLY AIR
^ RETURN AIR
Certified dimension drawings available on request
Fig. 1 — Dimensions and Connections
Form No 50MQ-1SI