Carrier 50YA- User Manual
Carrier 50YA– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – Vertical Models; UNIT SIZE
- Page 3 – Step 3—Mounting the Unit; Fig. 3—Condensate Trap; ELAVATION LINE
- Page 4 – Fig. 6—Vertical Sound Attenuation; RETURN AIR LOUVER OR GRILLE
- Page 5 – Fig. 7—Line Power Connection; TERMINAL
- Page 7 – NOTE: All copper tubes and fittings
- Page 8 – WATER SOURCE COMFORT SYSTEM OPERATION; COOLING MODE; Table 3—Operating Limits
- Page 9 – Table 4—Cooling Operating Pressures (PSIG)
- Page 11 – MAINTENANCE
- Page 12 – TROBLESHOOTING; Thermostat In On Position, But Unit Does Not Operate
- Page 14 – Other
50YA
Water Source Comfort System
Installation and Start-Up Instructions
NOTE:
Read the entire instruction manual before starting the
installation.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause personal injury or property damage.
Consult a qualified installer, service agency, or your distributor or
branch for information or assistance. The qualified installer or
agency must use factory-authorized kits or accessories when
modifying this product. Refer to the individual instructions pack-
aged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for brazing operations. Have fire extinguisher
available. Read these instructions thoroughly and follow all
warnings or cautions attached to the unit. Consult local building
codes and the National Electrical Code (NEC) for special instal-
lation requirements.
Recognize safety information. This is the safety-alert symbol
.
When you see this symbol on the unit or in instructions and
manuals, be alert to the potential for personal injury.
Understand the signal word DANGER, WARNING, or CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies hazards that could
result in personal injury or death. CAUTION is used to identify
unsafe practices which would result in minor personal injury or
product and property damage.
Electrical shock can cause personal injury or death. Before
installing or servicing system, always turn off main power to
system. There may be more than 1 disconnect switch. Turn
off accessory heater power if applicable.
INSTALLATION
Step 1—Check Jobsite
HORIZONTAL UNITS
Because horizontal units are designed for installation above a false
ceiling or ceiling plenum, access becomes an important consider-
ation. Be sure that the site chosen for unit installation provides
enough clearance to allow easy maintenance or servicing of the
unit without removal from the ceiling. Refer to Fig. 1 for a typical
horizontal unit.
INSTALLATION GUIDELINES
1. Provide a hinged access door (inconcealed-spline or plaster
ceilings), or removable tiles (in T-bar or lay-in ceilings).
The access opening must be large enough to allow the service
technician to service the unit (including compressor removal
and replacement), and to permit removal of the unit. See Fig.
2 for base unit dimensions.
2. Provide easy access to hanger brackets, water valves, and
fittings, and allow screwdriver clearance to access panels, the
discharge collar, and all electrical connections.
3. If a return duct is used, be sure to provide a duct slot for filter
replacement.
4. To allow removal of the unit, do not run obstructions (for
example, piping, electrical cable, etc.) under the unit.
5. Minimize obstructions in the conditioned space beneath the
unit whenever possible. A manual, portable jack can then be
used to lift and support the weight of the unit during
installation or servicing.
VERTICAL UNITS
While vertical units are typically installed in a floor level closet or
basement. The unit access guidelines for vertical units are very
similar to those described for horizontal units. Refer to Fig. 2 for
base unit dimensions and Fig. 3 for condensate trap installation.
UNIT LOCATION
1. Provide adequate clearance for filter replacement and drain
pan cleaning. Do not allow piping, conduit, etc. to block filter
access.
2. Provide sufficient access to allow maintenance and servicing
of the fan and fan motor, compressor, and coils.
3. Provide an unobstructed path to enable removal of the unit
from the closet or utility room.
4. Provide ready access to water valves and fittings, and allow
screwdriver access to unit side panels, discharge collar, and all
electrical connections.
Step 2—Check Unit
Be sure to inspect the carton or crating housing each unit as it is
received at the job site. Verify that all items have been received
and that there is no visible damage; note any shortages or damage
on all copies of the freight bill. In the event of damage or shortage,
remember that the purchaser is responsible for filing the necessary
claims with the shipping company.
Fig. 1—Model 50YAH
A93331
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
Tab
5a 5a
PC 101
Catalog No. 565-188
Printed in U.S.A.
Form 50YA-1SI
Pg 1
7-93
Replaces: New
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Summary
Fig. 2—Base Unit Dimensions Horizontal Models UNIT SIZE A (IN.) B (IN.) C (IN.) 009,012 11-1/8 20 34 015,019 17 20 43 024,030 19 20 43 036 21 20 47 042-060 21 36-1/4 36-1/4 A B C Vertical Models UNIT SIZE A (IN.) B (IN.) C (IN.) 009,012 24-1/8 19-1/8 19-1/8 015,019 37-1/2 21-1/8 21/1/8 024,030 37-1/...
Loosen the compressor mounting bolts to remove the 3 shippingblocks if equipped before installation. A periodic maintenance checklist is provided in the maintenancesection to outline recommended maintenance schedules. Do notsubstitute these checklist for the detailed information found in theappropri...
Normally it is required that the heat pump be installed in aprotected space inside the conditioned area. If the unit is installedin an unconditioned space, it is imperative that it be isolated andprotected so that its physical temperature is maintained at 60°F orabove. All water pipes that are subje...
