Carrier 38BYG Specifications download pdf

HEATUNG & COOUNG

38BYC, 38BYG

12 SEER SpMit System

Heat Pump

%isitx__ _.¢arrier.com

Installation and Start-Up Instructions

NOTE: Read the entire instruction manual before starting the

installation.

This symhoi --> indicates a change since the last issue.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteratiom service, maintenance,

or use can cause explosion, fire, electrical shock, or other

conditions which may cause death, personal injury, or property

damage. Consult a qualified installer_ service agency, or your

distributor or branch for infornmdon or assistance. The qualified

installer or agency must use _hctory=authorized kits or accessories

when modi_}-ing this product. Refer to the individual instructions

packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing,

and work gloves. Use quenching cloth t:br brazing operations.

Have fire extinguisher available. Read these instructions thor-

oughly and _\_llow all warnings or cautions included in literature

and attached to the unit. Consnh local building codes and National

Electrical (?ode (NEC) [br special requirements.

Recognize safety informatiom This is the safety-alert symbolz_ .

When you see this symhol on the unit and in instructions or

manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAU=

TION. These words are used with the saf_b_-alert symbol. DAN-

GER identifies the most serious hazards which will result in severe

personal injury or death. WARNING signifies hazards which

could result in personal injury or death. (AUTION is used to

identify unsafe practices which would result in minor personal

injuw or product and property damage. NOTE is used to highlight

suggestions which will result in enhanced installation, reliability,

or operation.

Be%re installing, modif}'ing, or servicing system, main elec-

trical disconnect switch must be in the OFF position. There

may be more than 1 disconnect switch. Lock out and tag

switch with a suitable warning tahet. Electrical shock can

cause personal injury or death.

iNSTALLATiON RECOMMENDATBONS

NOTE: In some cases noise in the living area has been traced to

gas pulsations fiom improper installation of equipment

h Locate unit away fiom window< patios, decks, and so forth

where unit operation sounds may disturb customer

2. Ensure that vapor- and liquid-robe diameters are appropriate to

capacity of unit

3. Rm_ refrigerant tubes as directly as possible by avoiding

unnecessary rams and bends.

A98525

Fig. 1--Mode{ 38BYG

4 Leave some slack between structure and unit to absorb

vibration

5 When passing refi'igerant robes through the wall, seal opening

with RTV or other pliable silicon based caulk. (See Fig. 2.)

6. Avoid direct robing contact with water pipes, duct work, floor

joists, wall studs, floors, and walls.

7. Do not suspend refiigerant tubing fi'om joists and studs with a

rigid wire or strap that comes in direct contact with robing.

(See Fig. 20

8. Ensure that robing insulation is pliable and completely sur-

rounds vapor tube.

9. When necessary, use hanger straps which are 1 in. wide and

con_bm_ to shape of robing insulation. (See Fig. 20

10. Isolate hanger straps from insulation by using metal sleeves

bent to confbrm to shape of insulation.

When outdoor unit is connected to ihctory-approved indoor unit,

outdoor unit contains system refrigerant charge fbr operation with

indoor unit of the same size when connected by 15 fi of

field-supplied or factoo'-accesso<v robing. For proper unit opera-

tion, check refi'igerant charge using charging information located

on control box cover.

IMPORTANT: Maximun_ liquid line size is 3/8-im O.D. fc_r all

residential applications including long line.

INPORTANT: Always install a liquid line filter drier on any

system using existing field service line sets and or existing indoor

coil or fan coil units. Always use a filter direr on burnout unit

replacements.

Manufacturer reserves the right to dissontinue, or change at any time, specifications or designs without notise and without insurring obligations,

PC 101 Catalog No. 533-80078 Printed in USA Form 38BYC-3SI Pg 1 11-02 Replaces: 38BYC-2SI

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Heat Pump

HEATUNG & COOUNG38BYC, 38BYG12 SEER SpMit SystemHeat Pump%isitx__ _.¢arrier.comInstallation and Start-Up InstructionsNOTE: Read the entire instruc

Page 2 - Fig. 3--Mounting Unit to Pad

NOTE: Avoid contact between tubing and structure_-- OUTDOOR WALL--_ INDOOR WALL_"-_. CAULKlq/N 7/_ vAPOR TUBESULATiTHROUGH THE WALLHANGERSTRAP*_

Page 3 - 8 O'CLOCK 4 O'CLOCK

If TXV installation is required, remove existing AccuRater_ t'romindoor coil Re_r to Figs 4 and 5 and install TXV kit as _bllows:1_ Install sucti

Page 4 - Fig. 7--Liquid-Service Valve

UNITSiZE018O24030, 036O42048, 060NOTES:Table 1--Refrigerant Connections And Recommended Liquid= And Vapor=Tube Diameters (in.)LBQUID VAPOR VAPOR (LONG

Page 5 - Tab{e 2--Accessory Usage

Tab{e 2--Accessory UsageREQUIRED FOR REQUIRED FOR REQUIRED FORLOW-AMBiENT LONG-LINE BURRED LINEACCESSORYAPPLICATBONS APPLICATIONS* APPMCATBONSt(BELOW

Page 6 - ,a--D ---q4S

4, Set room them_ostat to desired temperature, Be sure set pointis below indoor=ambient temperature5, Set room them_ostat to HEAT or COOL and fire con

Page 7 - Fig. 10--Defrost Control

CES0110063,CES0130024Tab{e 3--Defrost Control Speedup-A91444SPEEDUPPARAMETER(NOMINAL)30=minute cycle 7 sec50=minute cycle 12 sec90=minute cycle 21 sec

Page 8 - EXAMPLE:

NOTE:Whenchargingis necessaw-duringheatingseason,chargemustbeweighedinaccordancewithunitratingplate÷0.6oziftof3/8-in.liquidlineaboveorbelow15ftrespect