Lennox Elite Series HP13 User manual

';_)2007 Lennox industries Jnc,

Dallas, Texas, USA

0( us

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

WARNING

A CAUTION

AIMPORTANT

X_ IMPORTANT

INSTALLATION

INSTRUCTIONS

HP13 Series Units

HEAT PUMP UNITS _Technical

505,076M LLJJ Publications

06107 LithoU.S.A.

Supersedes 07/06

HP13 Outdoor Unit ............................ 1

Shipping & Packing List ........................ 1

General Information ........................... 3

Unit Dimensions ............................... 2

Setting the Unit ............................... 3

Removing Panels ............................. 5

Electrical ..................................... 6

Refrigerant Piping ............................. 8

Refrigerant Metering Device .................... 10

Manifold Gauge Set ........................... 10

Service Valves ................................ 11

Leak Testing .................................. 11

Evacuation ................................... 12

Start-Up ...................................... 12

Refrigerant Charging ........................... 13

System Operation ............................. 15

Defrost System ............................... 15

Maintenance .................................. 16

Optional Accessories .......................... 16

Homeowner Information ........................ 17

Thermostat Operation .......................... 17

Start-Up and Performance Check List ............ 18

Lennox Elite ® Series HP13 outdoor units are approved

and warranted only for installation with specially

matched indoor coils, line sets, and refrigerant control

devices aC designated by Lennox. Refer to Lennox

engineering handbook for check expansion valve

(CTXV) kits which may need to be ordered separately.

1 - Assembled HP13 outdoor unit

Check unit for shipping damage. Consult last carrier

immediately if damage is found.

06/07

IIIlllllllllllllllllllllllllllllllllllll Page 1 505,076M

IIIllllllllllllllllllllllllllllllHlllllllll

RUN

CAPACITOR

TOP VIEW

4 C

DISCHARGE AIR t

f--

'X/

I I

SIDE VIEW

DEFROST

BOARD

CONTACTOR

REVERSING

VALVE

SUCTION LINE

CONNECTION FILTER DRIER/

LIQUID LINE

CONNECTIONS

LIQUID LINE

CONNECTION

LIQUID LINE

CONNECTION

ELECTRICAL

/INLETS

VAPOR LINE

JCONNECTION

4-1/4 4-3/4

(108) (121)

f f

,OUTDOOR FAN

-COMPRESSOR

HIGH PRESSURE

SWITCH

(-018 MODEL ONLY)

,VAPOR LINE

VAPOR VALVE AND

- GAUGE PORT/SUCTION

LINE CONNECTIONS

HP13 PARTS ARRANGEMENT

2(51) [_-

-N

1 (25)

I I i i

SIDE VIEW

UNIT SUPPORT

FEET

8-1/2

(2"

8-3/4

(343)

HP13-018, -024, -030, AND -036

BASE SECTIONS

9-1/2

41)

8-1/4

(210)

UNIT SUPPORT / "_

FEET\

D(_ @ C)

-r

----I-

HP13 BASE WITH ELONGATED LEGS

HP13 A

-018 35 (889)

-024 35 (889)

-030 31 (787)

-036 35 (889)

-042 35 (889)

-048 39 (991)

-060 39 (991)

27 (686)

30-1/2 (775)

35-1/2 (902)

28 (711)

35 (889)

39-1/2 (1003)

13-7/8 (352) 7-3/4 (197)

16-7/8 (429) 8-3/4 (222)

3-1/4 (83)

3-1/8 (79)

G H JK

27-1/8 (689)

30-3/4 (781)

3-5/8 (92)

4-5/8 (117)

4-1/2 (114)

3-3/4 (95)

20-5/8 (524)

26-7/8 (683)

505076M 06/07

Page 2

WARNING position that will transmit sound or vibration to the

living area or adjacent buildings.

2+ Install the unit high enough above ground or roof to

allow adequate drainage of defrost water and prevent

ice build-up.

3+ In heavy snow areas, do not locate unit the where

snowdrifts will likely build. The unit base should be

elevated above the depth of average snows.

NOTE -Elevation of the unit may be accomplished by

constructing a frame using suitable materials. If a

support frame is constructed, it must not block drain

holes in unit base.

4+ Locate the unit so prevailing winter winds will not blow

into the coil.

5. Locate unit away from overhanging roof lines which

would allow water or ice to drop on, or in front of, coil

or into unit.

These instructions are intended as a general guide and do

not supersede national or local codes in any way.

Authorities having jurisdiction should be consulted before

installation+

When servicing or repairing HVAC components, ensure

the fasteners are appropriately tightened. Table 1 shows

torque values for fasteners+

Table 1. Torque Requirements

Parts Recommended Torque

Service valve cap 8 ft.- lb. 11 NM

Sheet metal screws 16 in.- lb. 2 NM

Machine screws #10 28 in.- lb. 3 NM

Compressor bolts 90 in.- lb. 10 NM

Gauge port seal cap 8 ft.- lb. 11 NM

CAUTION

Outdoor units operate under a wide range of weather

conditions; therefore, several factors must be considered

when positioning the outdoor unit+

Position the unit to allow adequate airflow and servicing

clearance. Maintain a minimum clearance of 24 inches

(610 mm) between multiple units as illustrated in figure 1+

1+ Place a sound-absorbing material, such as Isomode,

under the unit if it will be installed in a location or

NOTES:

Service clearanceof30 in. (762mm) mustbe maintainedon

one of the sidesadjacent to the control box+

Clearanceto oneof the otherthree sides must be 36 in.(914

mm)

Clearancetoone ofthe remainingtwo sides may be 12 in+(305

mm) and the final sidemay be 6 in. (152mm),

A clearanceof24 in, (610mm) must be maintained between

two units.

48 in. (1219mm)clearancerequiredon top of unit,

Figure 1. Installation Clearances

SLAB MOUNTING

When installing unit at grade level, the top of the slab

should be high enough above grade so that water from

higher ground will not collect around the unit. The slab

should have a slope tolerance away from the building of 2

degrees or 2 inches per 5 feet (50 mm per 1500 mm) to

prevent ice build-up under the unit during a defrost cycle+

NOTE -If necessary for stability, anchor unit to slab as

described in "Stabilizing unit on uneven surfaces".

Page 3

HP13 SERIES

INSTALLUNITLEVELOR,IFONASLOPE,MAINTAINSLOPE

TOLERANCEOF2DEGREES(OR2INCHESPER5FEET

[50MMPER1.5M])AWAYFROMBUILDINGSTRUCTURE.__L

BUILDING

STRUCTURE

MOUNTING _ i T

SLAB

GROUND LEVEL

Figure 2. Slab Mounting Options

ELEVATING THE UNIT (SMALL-BASE UNITS)

If additional elevation is necessary, raise the unit by

extending the length of the unit support feet. This may be

done by cutting four equal true-cut lengths of Schedule

(SCH) 40, 4" (101.6mm) piping to the height required as

illustrated in figure 3.

NOTE -Keep the height of extenders short enough to

ensure a sturdy installation. If it is necessary to extend

further, consider a different type of field-fabricated

framework that is sturdy enough for greater heights.

The inside diameter of the 4" (101.6mm) piping is

approximately 0.25" (6.35mm) greater than the

pre-installed feet on the unit. Devise a shim that will take up

the space and hold the extenders onto the feet during this

procedure. Small strips of 0.125" (3.175mm) thick

adhesive foam may be used. One or two small 1"

(25.4mm) square strips should be adequate to hold the

extender in place.

Base

Leg Detail 4" (101.6mm)

SCH 40 Piping

Figure 3. Elevated Slab Mounting using Feet

Extenders (Small-Base Units)

ELEVATING THE UNIT (LARGER-BASE UNITS)

Unlike the small-base units which use round feet, the

larger-base units are outfitted with elongated feet as

illustrated in figure 4. which uses a similar method for

elevating the unit height.

If additional elevation is necessary, raise the unit by

extending the length of the unit support feet. This may be

done with 2" SCH 40 female threaded adapter. The

specified coupling will fit snuggly into the recess portion of

the feet. Additional couplers can be used to make

additional adjustments to the level of the unit.

NOTE -Keep the height of extenders short enough to

ensure a sturdy installation. If it is necessary to extend

further, consider a different type of field-fabricated

framework that is sturdy enough for greater heights.

Base

Leg Detail 2" (50.8ram)

SCH 40

Female Threaded

Adapter

Figure 4. Elevated Slab Mounting using Feet

Extenders (Larger-Base Units)

STABILIZING UNIT ON UNEVEN SURFACES

To help stabilize an outdoor unit, some installations may

require strapping the unit to the pad using brackets and

anchors commonly available in the marketplace.

TYPICAL __,,,t

INSTALLATION

WITH 3 TO 4 IN.

EXTENDERS

INSTALLED _ BUILDING

IMPORTANT! STRUCTURE

ALWAYS USE MOUNTING _ i TSTABILIZER

BRACKET ON SLAB

ELEVATED

INSTALLATIONS

STABILIZER

BRACKETS

GROUNDLEVEL

Figure 5. Elevated Slab Mounting using Feet

Extenders

505076M 06/07

Page 4

IMPORTANT

With unit positioned at installation site, remove two side

Iouvered panels to expose the unit base pan. Install the

brackets as illustrated in figure 6 using conventional

practices; replace the panels after installation is complete.

Slab Side Mounting

ONE BRACKET PER SIDE (MIN.); FOR EXTRA STABILITY,

2 BRACKETS PER SIDE, 2" FROM EACH CORNER.

Figure 6. Installing Stabilizer Brackets

ROOF MOUNTING

Install unit 6" (152 mm) above the roof surface to avoid ice

build-up around the unit. Locate the unit above a load

bearing wall or area of the roof that can adequately support

the unit, Consult local codes for rooftop applications.

If unit cannot be located away from prevailing winter winds,

construct a wind barrier sized at least the same height and

width as outdoor unit, Position barrier 24" (610 mm) from

the sides of the unit in direction of prevailing winds as

illustrated in figure 7,

inlet a[_

prevailing winter winds

wind barrier ]

24"

inlet air ,_ _641'0 ram)

O inlet air

inlet air

Figure 7. Rooftop Application with Wind Barrier

If unit cannot be located away from prevailing winter winds,

construct a wind barrier sized at least the same height and

width as outdoor unit. Position barrier 24" (610 mm) from

the sides of the unit in direction of prevailing winds (fig. 7).

IMPORTANT! Do not allow panels to hang on unit by top tab.

Tab is for alignment and not designed to support weight of panel,

Panel shown slightly rotated to allow top tab to exit (or enter) top

slot for removing (or installing) panel.

LIP

SCREW

HOLES

Detail

ROTATE IN THIS

DIRECTION; THEN DOWN

TO REMOVE PANEL

Figure 8. Removing/Installing Louvered

Panels (Details A, B and C)

Remove the Iouvered panels as follows:

1, Remove 2 screws, allowing the panel to swing open

slightly (see figure 8).

2. Hold the panel firmly throughout this procedure.

Rotate bottom corner of panel away from hinge corner

post until lower 3 tabs clear the slots (see figure 8,

Detail B),

Page 5

HP13 SERIES

UTDOOR

FAN

PURPLE

BLACK

ORANGE

RED

START

CAPACITOR DUAL

CAPACITOR

DEFROST CONTROL

,j! o +

LLOW

COMPRESSOR

CRANKCASE

HEATER

BLACK

POTENTIAL _M_SOR (_

CONTACTORI/I

DEFROST.ff'"x _'\,REVERSING

THERMOSTAT_ _VALVE

o_- ©

Y1ou_

*MAY BE OPTIONAL

--C

--L

--R

--0

--YI

20B-230/60/I

EQUIPMENT

GROUND

Figure 9. Typical Field Wiring Diagram

3. Move panel down until lip of upper tab clears the top MAINTAINMINIMUMPANELANGLE(AS CLOSETOPARALLELWITHTHEUNIT

slot in corner post (see figure 8, Detail A). AS POSSIBLE) WHILEINSTALLINGPANEL.

HOLD DOOR FIRMLY TO THE HINGED

ANGLE MAY BE TOO SIDE TO MAINTAIN

EXTREME _-_ FULLY-ENGAGED TABS

CAUTION PREFERRED ANGLE

Detail D

Position and Install Panel--Position the panel almost

parallel with the unit (figure 8, Detail D) with the "screw

side" as close to the unit as possible, Then, in a continuous

motion:

•Slightly rotate and guide the lipof top tab inward (figure

8, Details A and C); then upward into the top slot of the

hinge corner post,

• Rotate panel to vertical to fully engage all tabs,

• Holding the panel's hinged side firmly in place, close

the right-hand side of the panel, aligning the screw

holes.

When panel is correctly positioned and aligned, insert the

screws and tighten,

Figure 10. Removing/Installing Louvered

Panels (Detail D)

In the U.S.A., wiring must conform with current local codes

and the current National Electric Code (NEC). In Canada,

wiring must conform with current local codes and the current

Canadian Electrical Code (CEC).

Refer to the furnace or blower coil installation instructions

for additional wiring application diagrams and refer to unit

nameplate for minimum circuit ampacity and maximum

overcurrent protection size.

505076M 06/07

Page 6

_WARNING

1, Install line voltage power supply to unit from a properly

sized disconnect switch,

2, Ground unit at unit disconnect switch or to an earth

ground,

NOTE -Tofacilitate conduit, a hole is in the bottom of

the control box. Connect conduit to the control box

using a proper conduit fitting.

NO TE -Units are approved for use only with copper

conductors. 24V, Class II circuit connections are

made in the low voltage junction box. Refer to figure 9

for field wiring diagram.

NOTE -For proper voltages, select thermostat wire

gauge per the foflowing chart:

Wire run length AWG # Insulation type

less than 1go' (3Om) 18 color-coded, temperature

more than log' (30m) 16 rating 35°C minimum

NOTE -A complete unit wiring diagram is located

inside the unit control box cover.

3, Install room thermostat (ordered separately) on an

inside wall approximately in the center of the

conditioned area and 5 feet (1.5 m) from the floor. It

should not be installed on an outside wall or where it

can be effected by sunlight, drafts or vibrations,

4, Install low voltage wiring from outdoor to indoor unit and

from thermostat to indoor unit, See figures 11 and 12,

Thermostat Indoor Unit

24V Power . _ __ 24V j_ower __

4 i- _ common

1st-stage II

* a-ux_ry heat I_ _ 1st-stage

- '- _ x_arTh_--

I k

®._doorb,owor_

_ valve

reversing

compressor

(SOME CONNECTIONS MAY NOT APPLY. REFER TO

SPECIFIC THERMOSTAT AND INDOOR UNIT.)

Figure 11. Outdoor Unit and Blower

Unit Thermostat Designations

Outdoor Unit

Thermostat

®-

©-

24V power

common

emergency heat i

1st-stage II

auxiliary heat Ii--

_indoor blower

(_ reversing_alve

compressor

_" SOME CONNECTIONS MAY NOT APPLY. REFER TO

THERMOSTAT AND INDOOR UNIT.)

Indoor Unit Outdoor Unit

\ 24V power

_'_ common

--_ _ EMERGENCY

--47 O ;TA;oR; AY

/---------THERMOSTAT

@ , Z"'t-s_ge

-'auxiliary float-- (_

®®

Figure 12. Outdoor Unit and Blower Unit

Thermostat Designations (with Emergency

Heat)

Page 7

HP13 SERIES

Field refrigerant piping consists of liquid and vapor lines

from the outdoor unit (sweat connections) to the indoor coil

(flare or sweat connections),

Use Lennox L15 (sweat, non-flare) series line sets as

shown in table 2 or use field-fabricated refrigerant lines,

Refer to Refrigerant Piping Guide (Corp. 9351-L9) for

proper size, type, and application of field-fabricated lines.

Field connection sizes are also listed in table 2.

Model

Table 2. Refrigerant Line Sets

Field

Connections

Liquid Vapor

Line Line

-018 3/8 in. 3/4 in

-024 (10 mm) (19 mm)

-030

-036 3/8 in. 7/8 in

-042 (10 mm) (22 mm)

-048

3/8 in, 1-1/8 in.

-060 (10 mm) (29 mm)

Recommended Line Set

Liquid Vapor L15

Line Line Line Sets

3/8 in. 3/4 in L15-41

(10 (19 mm) 15 ft, - 50 ft.

mm) (4.6 m - 15 m)

3/8 in. 7/8 in L15-65

(10 (22 mm) 15 ft, - 50 ft.

mm) (4.6 m - 15 m)

3/8 in, 1-1/8 in. Field

(10 (29 mm) Fabricated

mm)

NOTE -Units are designed for line sets of up to fifty feet (15

m). For applications longer than fifty feet, consult the

Lennox Refrigerant Piping Guide (Corp. 9351-L9). Select

line set diameters from table 2 to ensure that oil returns to

the compressor.

INSTALLING REFRIGERANT LINE

Pay close attention to line set isolation during installation of

any heat pump or a/c system. When properly isolated from

building structures (walls, ceilings, floors), the refrigerant

lines will not create unnecessary vibration and subsequent

noises. Also, consider the following when placing and

installing a high-efficiency outdoor unit:

1. Placement--Some localities are adopting sound

ordinances based on the unit's noise level observed

from the adjacent property, not from the installation

property. Install the unit as far as possible from the

property line. When possible, do not install the unit

directly outside a window. Glass has a very high level

of sound transmission. Figure 13 shows how to place

the outdoor unit and line set.

Install unit /

away from J

windows

Two 90° elbows installed in line set

will reduce line set vibration.

Figure 13. Outside Unit Placement and Installation

2. Line Set Isolation--The following illustrations

demonstrate procedures which ensure proper

refrigerant line set isolation. Figure 14 shows how to

install line sets on horizontal runs. Figure 15 shows

how to install line sets on vertical runs. Figure 16

shows how to make a transition from horizontal to

vertical.

To hang line set from joist or rafter,

use either metal strapping material

or anchored WIRE TIE

(Around vapor

STRAPPING MATERIAL

(Around vapor line only)

8 FEET TAPE OR

WIRE TIE

METAL

SLEEVE Strap the vapor line to the joist or

TAPE OR rafter at 8 feet intervals then strap

WIRE TIE the liquid line to the vapor line.

ROOF RAFTER _ --

q Ill II

Figure 14. Refrigerant Line Sets: Installing

Horizontal Runs

505076M 06/07

Page 8

IMPORTANT - Refrigerant LIQUID

OUTSIDE WALL lines must not contact wall. VAPOR LINE

LINE

NOTE -Similar installation

practices should be used if

line set is to be installed on

exterior of outside wall.

VAPOR LINE

WRAPPED WITH

ARMAFLEX LIQUID

must not contact

structure.

P Cv_\ULK

FIBERGLASS

PIPE

TIE

WALL

WOOD

BLOCK

STRAP

ANCHORED

HEAVY NYLON

WIRE TIE

WALL

STUD

Strap Liquid

por

Line

LIQUID

METAL VAPOR LINE -

SLEEVE WRAPPED IN

ARMAFLEX

AUTOMOTIVE

MUFFLER-TYPE _

HANGER

WALL o

X Strap Liquid

Line To Vapor

Line

LIQUID

METAL VAPOR LINE - LINE

SLEEVE WRAPPED IN

ARMAFLEX

Figure 15. Refrigerant Line Sets: Installing Vertical

Runs (New Construction Shown) Figure 16. Refrigerant Line Sets: Transition from

Vertical to Horizontal

Page 9

HP13 SERIES

BRAZING CONNECTION PROCEDURE

1. Cut ends of the refrigerant lines square (free from

nicks or dents). Debur the ends. The pipe must remain

round, do not pinch end of the line.

2. Before making line set connections, use dry nitrogen

to purge the refrigerant piping. This will help to prevent

oxidation and the introduction of moisture into the

system.

3. Use silver alloy brazing rods (5 or 6 percent minimum

silver alloy for copper-to-copper brazing or 45 percent

silver alloy for copper-to-brass or copper4o-steel

brazing) which are rated for use with HCFC-22

refrigerant. Wrap a wet cloth around the valve body

and the copper tube stub. Braze the line set to the

service valve.

4. Wrap a wet cloth around the valve body and copper

tube stub to protect it from heat damage during

brazing. Wrap another wet cloth underneath the valve

body to protect the base paint.

NOTE -The tube end must stay bottomed in the fitting

during final assembly to ensure proper seating,

sealing and rigidity.

5. If required, install a field-provided check expansion

valve (approved for use with HCFC-22 refrigerant) in

the liquid line at the indoor coil.

HP13 units are used in check expansion valve (CTXV)

systems only. See the Lennox Engineering Handbook for

approved expansion valve match-ups and application

information.

Check expansion valves equipped with Chatleff fittings are

available from Lennox. Refer to the Engineering

Handbook for applicable check expansion valves for use

with specific match-ups. See table 3 for valve kits.

Table 3

Indoor Check Expansion Valve Kits

Model Kit Number

HP13-018, -024, -030, -036 LB-85759F

HP13-042, -048 LB-85759G

HP13-060 100188-01

AIMPORTANT

If you install a check expansion valve with an indoor coil

that includes a fixed orifice, remove the orifice before the

check expansion valve is installed. See figure 17 for

installation of the check expansion valve.

// j

DISTRIBUTOR (__ LIQUID LINE

................................_ STUB

NOTE- If installing expansion valve with an indoor coil that in-

cludes a fixed orifice, remove orifice before installing valve.

Figure 17. Metering Device Installation

When checking the unit charge, use a manifold gauge set

that is equipped with "low loss" hoses. Do not use a

manifold gauge set with anything other than a "low loss"

hose. See figure 18 for manifold gauge connections.

DEFROST --....__.._

THERMOSTAT

CHECK EXPANSION VALVE

LOW Hugh

PRESSURE PRESSURE

o s@:,!.

DISTRIBUTOR OUTDOOR UNIT

REVERSING VALVE

DRIER OUTDOOR

COiL

VAPOR set- SERVICE

vice port J PORT

line

f JJ COMPRESSOR _ valve

CHECK EXPANSION VALVE --

NOTE - ARROWS INDICATE

DIRECTION OF REFRIGERANT FLOW

NOTE - USE GAUGE PORTS ON VAPOR

LINE VALVE AND LIQUID VALVE FOR

EVACUATING REFRIGERANT LINES

AND INDOOR COIL. USE VAPOR GAUGE

PORT TO MEASURE VAPOR PRESSURE

DURING CHARGING.

INDOOR UNIT

INDOOR

COIL

Figure 18. HP13 Cooling Cycle (Showing Gauge Manifold Connections)

Page 10

505076M 06/07

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