Lennox ZHA036, ZHA048, ZHA060 Installation Instructions Manual

Litho U.S.A.

2015

INSTALLATION INSTRUCTIONS

WARNING

Improper installation, adjustment, alteration, ser vice or maintenance can cause property damage, personal injury or loss of life. Installation and ser vice must be performed by a licensed professional HVAC installer or equivalent or service agency.

CAUTION

Danger of sharp metallic edges. Can cause injury. Take care and wear protective clothing when servicing unit to avoid accidental contact with sharp edges.

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

Table Of Contents

Dimensions Page 2.................................

Shipping and Packing List Page 3....................

General Page 3....................................

Requirements Page 3...............................

Unit Support Page 4................................

Duct Connection Page 4............................

ZHA036 (3 TON) ZHB036 (3 TON) ZHA048 (4 TON) ZHB048 (4 TON) ZHA060 (5 TON) ZHB060 (5 TON)

HEAT PUMP PACKAGED UNITS

507111-02 2/2015 Supersedes 507111-01

Rigging Unit For Lifting Page 4.......................

Horizontal Air Discharge Page 5......................

Condensate Drains Page 5..........................

Electrical Connections Page 6.......................

Blower Operation and Adjustments Page 7............

Start-Up Page 16....................................

Defrost Control Board Page 22........................

Service Page 23....................................

ZH 036, 048, 060 PARTS ARRANGEMENT

CONTROL

PANEL

OUTDOOR

COIL FAN

COMPRESSOR

OUTDOOR

COIL

SIDE POWER

ENTRY

EVAPORATOR

COIL

BLOWER

MOTOR

BLOWER

HOUSING

ELECTRIC HEAT

(OPTIONAL)

TB2 UNIT

TERMINAL

STRIP

UNIT FUSE

BOTTOM POWER

ENTRY

ZH 036, 048, 060, DIMENSIONS in (mm)

Holes required for Optional Bottom Power Entry Kit

BOTTOM POWER ENTRY

Conduit Fittings (Provided in Kit)

A B C

Threaded

1/2

1/2 3/4

Wire

Use

ACC.

24V

POWER

47-1/4 (1200) BASE

Hole Diameter

Required in

Unit Base (Max.)

7/8 (23)

1-1/8 (29)

16-1/8

(410)

13-5/8

(346)

11-1/8

(283)

24-9/16

(624)

BOTTOM RETURN

AIR OPENING

A B C

BOTTOM

POWER

ENTRY

(See Table)

75-7/8 (1927)

12-1/8

(308)

TOP VIEW (Base)

25-5/8

(651)

BOTTOM

SUPPLY

OPENING

AIR

5-1/8 (130)

17-3/4

(451)

5-3/4

(146)

5-1/8 (130)

10-7/8

(276)

(737)

45-1/4 (1149)

44-7/8 (1140) ZH 060

ZHB036, 048

36-7/8 (937) ZHA036, 046

(25)

47-1/4 (1200)

(25)

BASE

POWER

ENTRY

(25)

Either

side

3-1/2

(89)

END VIEW

ZH 036, 048, 060

LIFTING HOLES

(For rigging)

73-3/4 (1873)

FRONT VIEW

Page 2

3-1/2 (89)

TYP.

11-7/8

(302)

5-3/4 (146)

6-1/2 (165)

CONDENSATE

OUTLET

HORIZONTAL

SUPPLY

17-3/8

(441)

(686)

(787)

END VIEW

6-1/4 (159)

RETURN

HORIZONTAL

5-9/16

(141)

8-3/8

(213)

10-7/8

(276)

25-3/4

(654)

5-3/4 (146)

Shipping and Packing List

Package 1 of 1 contains:

1 - Assembled unit

Check unit for shipping damage. Receiving party should contact last carrier immediately if shipping damage is found.

General

These instructions are intended as a general guide and do not supersede local codes in any way. Authorities having jurisdiction should be consulted before installation.

Availability of units and options varies by brand.

Requirements

NOTICE

Roof Damage! This system contains both refrigerant and oil. Some rubber roofing material may absorb oil, causing the rubber to swell. Bubbles in the rubber roofing material can cause leaks. Protect the roof surface to avoid exposure to refrigerant and oil during service and installation. Failure to follow this notice could result in damage to roof surface.

The National Electric Code (ANSI/NFPA No. 70-1984) is available from:

National Fire Protection Association 1 Batterymarch Park PO Box 9101 Quincy, MA 02269-9101

The ZH unit is CSA certified as a heat pump with cooling and with or without auxiliary electric heat for non-residential use only at the clearances to combustible materials as listed on the unit nameplate and in figure 1.

Installation of ZH heat pumps must conform with standards in National Fire Protection Association (NFPA) “Standard for Installation of Air Conditioning and Ventilating Systems NFPA No. 90A,” “Standard for Installation of Residence Type Warm Air Heating and Air conditioning Systems NFPA No. 90B,” local municipal building codes and manufacturer's installation instructions.

UNIT CLEARANCES

HORIZONTAL

OUTDOOR AIR HOOD

Installation of CSA certified units must also conform with current standard C273.5 “Installation Requirements for Heat Pumps” and applicable local codes. Authorities having jurisdiction should be consulted before installation.

Use of this unit as a construction heater or air conditioner is not recommended during any phase of construction. Very low return air temperatures, harmful vapors and operation of the unit with clogged or misplaced filters will damage the unit.

If this unit has been used for heating or cooling of buildings or structures under construction, the following conditions must be met or the warranty will be void:

 A room thermostat must control the unit. The use of

fixed jumpers that will provide continuous heating or cooling is not allowed.

 A pre-filter must be installed at the entry to the return

air duct.

 The return air duct must be provided and sealed to

the unit.

FIGURE 1

Unit

Clearance

Service

Clearance

Minimum Opera

tion Clearance36(914)36(914)

*Clearance is 60 in. (1524mm) in horizontal air flow applications. Note - Entire perimeter of unit base requires support when elevated above mounting surface.

Service Clearance - Required for removal of serviceable parts. Minimum Operation Clearance - Required clearance for proper unit operation.

in.(mm)Bin.(mm

(914)36(914)

in.(mm)Din.(mm)

)

36*

(914)36(914)

36*

(914)36(914)

To p

Clearance

Unob

structed

Unob

structed

 Return air temperature range between 55°F (13°C)

and 80°F (27°C) must be maintained.

 Air filters must be replaced and pre-filter must be

removed upon construction completion.

 The unit components, duct system, air filters and

evaporator coil must be thoroughly cleaned following final construction clean-up.

 The unit operating conditions (including airflow,

cooling operation, and heating operation) must be verified according to these installation instructions.

Page 3

507111-02 2/2015

WARNING

Electric shock hazard and danger of explosion. Can cause injury, death or product or property damage. Turn off electrical power to unit before performing any maintenance or servicing operations on the unit.

IMPORTANT

The Clean Air Act of 1990 bans the intentional vent ing of refrigerant (CFC's and HCFC's) as of July 1,

1992. Approved methods of recovery, recycling or reclaiming must be followed. Fines and/or incar ceration may be levied for non-compliance.

Unit Support

NOTE - Securely fasten roof frame to roof per local codes.

NOTE-When installing unit on a combustible surface for downflow discharge applications, the Z1CURB roof mounting frame is required.

B - Horizontal Discharge Applications

1- Specified installation clearances must be maintained

when installing units. Refer to figure 1.

2- Top of support slab should be at least 4” (102mm)

above the finished grade and located so no run-off water from higher ground can collect around the unit.

3- Units require support along all four sides of unit base.

Supports must be constructed of steel or suitably treated wood materials.

Duct Connection

All exterior ducts, joints, and openings in roof or building walls must be insulated and weatherproofed with flashing and sealing compounds in accordance with applicable codes. Any duct passing through an unconditioned space must be insulated.

ZH 036, 048, 060 units are installed on Z1CURB frames.

A - Downflow Discharge Application

Roof Mounting with Z1CURB

1- The Z1CURB roof mounting frame must be installed,

flashed and sealed in accordance with the instructions provided with the frame.

2- The Z1CURB roof mounting frame should be square

and level to 1/16” per linear foot (5mm per linear meter) in any direction.

3- Duct must be attached to the roof mounting frame

and not to the unit; supply and return plenums must be installed before setting the unit.

Installer's Roof Mounting Frame

Many types of roof frames can be used to install the unit, depending upon different roof structures. Items to keep in mind when using the building frame or supports are:

1- The unit base is fully enclosed and not insulated, so

an enclosed, insulated frame is required.

2- The frames or supports must be constructed with

non-combustible materials and should be square and level to 1/16” per linear foot (5mm per linear meter) in any direction.

3- Frame or supports must be high enough to prevent

any form of moisture from entering unit. Recommended minimum frame height is 14” (356mm).

4- Duct must be attached to the roof mounting frame

and not to the unit. Supply and return plenums must be installed before setting the unit.

5- Units require support along all four sides of unit base.

Supports must be constructed of steel or suitably treated wood materials.

ZH 036, 048, 060

Page 4

CAUTION

In downflow applications, do not drill or punch holes in base of unit. Leaking in roof may occur if unit base is punctured.

Rigging Unit For Lifting

1- Connect rigging to the unit base using both holes in

each corner. See figure 2.

2- All panels must be in place for rigging.

3- Place field‐provided H‐style pick in place just above

top edge of unit. Frame must be of adequate strength and length. (H-style pick prevents damage to unit.)

UNIT

*Maximum weight with all available installed accessories.

CAUTION: DO NOT

WALK ON UNIT.

WEIGHT*

LBS. KG.

664 301

Lifting Point Should

Be Directly Above Center Of Gravity.

FIGURE 2

Horizontal Air Discharge

Unit is shipped with panels covering the horizontal supply and return air openings. See figure 3.

UNIT SUPPLY AND RETURN AIR OPENINGS

HORIZONTAL

SUPPLY AIR

OPENING

RETURN AIR

OPENING

4- Install return air duct on the intake air side of the

horizontal economizer. See figure 5.

5- Horizontal economizer and return air duct must be

field-supported.

HORIZONTAL RETURN AIR DUCTWORK

WITH ECONOMIZER

HOOD

PROVIDED

WITH

ECONOMIZER

This opening not used

in horizontal applica

tions with economizer

OPTIONAL

HORIZONTAL

ECONOMIZER

UNIT

DOWNFLOW

SUPPLY AIR

OPENING

DOWNFLOW

RETURN AIR

OPENING

FIGURE 3

1- Remove horizontal covers and place a bead of silicone

sealant on the underside of the duct cover flanges. See figure 4.

2- Position covers over downflow openings. Secure

covers with self-drilling screws in at least two places on each cover. Drill through duct cover side into flange of base pan.

3- Place a bead of silicone between insulation and duct

cover to seal in insulation edges. Let silicone dry before running gas or electric heat.

Units Equipped With An Optional Horizontal Economizer

1- Install the horizontal supply air cover over the down

flow supply air opening as described above.

2- Leave the horizontal return air cover in place.

3- Locate the extra horizontal return cover that is

included with the horizontal economizer kit. Install as described in previous section.

INSTALL DUCT COVERS - SIDE VIEW

APPLY SILICONE

SEALANT TO

FLANGES

NOT TO

SCALE

FLANGE AND UNIT INSULATION

DUCT COVER

FLANGES

UNIT BASE

FLANGES

APPLY SILICONE SEALANT

BETWEEN DUCT COVER

INSULATION

HORIZONTAL

SUPPLY AIR DUCT

(FIELD-PROVIDED)

HORIZONTAL RETURN AIR DUCT (FIELD-PROVIDED)

FIGURE 5

Condensate Drains

Make drain connection to the drain coupling provided on unit.

Note - The drain pan is made with a glass reinforced engineered plastic capable of withstanding typical joint torque but can be damaged with excessive force. Tighten pipe nipple hand tight and turn an additional quarter turn.

A trap must be installed between drain connection and an open vent for proper condensate removal. See figure 6. It is sometimes acceptable to drain condensate onto the roof or grade; however, a tee should be fitted to the trap to direct condensate downward. The condensate line must be vented. Check local codes concerning condensate disposal. Refer to pages 1 and 2 for condensate drain location.

CONDENSATE SIDE DRAIN CONNECTION

CAULK AROUND CONDENSATE COUPLING

NOTE - Allow clearance to open doors when installing condensate piping.

Minimum Pitch 1” (25 mm) per 10' (3 m) of line

OPEN VENT

UNIT

MOUNTING

FRAME

FIGURE 4

FIGURE 6

Page 5

507111-02 2/2015

Electrical Connections

POWER SUPPLY

Do not apply power or close disconnect switch until installation is complete. Refer to start-up directions. Refer closely to unit wiring diagram.

Refer to unit nameplate for minimum circuit ampacity and maximum fuse size.

1- Units are factory-wired for 240, 460, or 575 volt supply.

For 208V supply

from the 208V terminal on the control transformer. Move the wire from the transformer 240V terminal to the 208V terminal. Place the insulated terminal cover on the unused 240V terminal.

2- Route power through the side or bottom power

entry area. For bottom power entry, a bottom power entry kit must be used. Connect power wiring to K1/K3 contactors in control box. See figure 7. On units equipped with electric heat, route power wiring to TB2; see parts arrangement for location. See unit wiring diagram.

, remove the insulated terminal cover

POWER WIRING

IMPORTANT - Unless field thermostat wires are rated for maximum unit voltage, they must be routed away from line voltage wiring.

B - Control Wiring

1- Route thermostat cable or wires from subbase to

control panel (refer to unit dimensions to locate bottom and side power entry).

Use18 AWG wire for all applications using remotely installed electro-mechanical and electronic thermostats.

2- Install thermostat assembly in accordance with

instructions provided with thermostat.

3- Connect thermostat wiring to low voltage leads in

control box. Wire as shown in figure 8 for electro-mechanical and electronic thermostats. If using other temperature control devices or energy management systems see instructions and wiring diagram provided by manufacturer.

IMPORTANT-Terminal connections at the wall plate or subbase must be made securely. Loose control wire connections may allow unit to operate but not with proper response to room demand.

Y, G, J, M

VOLT ONLY

CONNECT FIELD-

SUPPLIED WIRING

TO K1/K3

FIGURE 7

CONTROL WIRING

A - Thermostat Location

Room thermostat mounts vertically on a standard 2” X 4” handy box or on any non-conductive flat surface.

Locate thermostat approximately 5 feet (1524 mm) above the floor in an area with good air circulation at average temperature. Avoid locating the room thermostat where it might be affected by:

-drafts or dead spots behind doors and in corners

-hot or cold air from ducts

-radiant heat from sun or appliances

-concealed pipes and chimneys

ZH 036, 048, 060

Page 6

24 VOLT FIELD WIRING WITH ELECTRONIC AND

ELECTRO-MECHANICAL THERMOSTATS

UNIT CONTROL AREA

A2 THERMOSTAT

Note - On electro-mechanical thermo stats set anticipator at 0.1 amps.

TO CMC1; DO NOT

REMOVE FACTORY

INSTALLED WIRES

NOT ALL TERMINALS

ARE FOUND ON ALL

THERMOSTATS

Jumper terminals R and OC when thermostat has no night setback terminals.

FIGURE 8

Blower Operation and Adjustments

Units are equipped with belt drive blowers; available drive varies by model.

Blower performance data is based on static pressure readings taken in locations shown in figure 9.

Note - Static pressure readings can vary if not taken where shown.

IMPORTANT

Three phase scroll compressors must be phased sequentially for correct compressor and blower rotation. Follow “COOLING START-UP” section of installation instructions to ensure proper compres sor and blower operation.

A - Blower Operation

Initiate blower demand at thermostat according to instructions provided with thermostat. Unit will cycle on thermostat demand. The following steps apply to applications using a typical electro-mechanical thermostat.

1- Set thermostat or temperature control device fan

switch to AUTO or ON. With fan switch in ON position, blower will operate continuously. With fan switch in AUTO position, the blower will cycle with demand.

2- Blower and entire unit will be off when thermostat or

temperature control device system switch is in OFF position.

B - Determining Unit CFM

1- The following measurements must be made with air

filters in place.

2- With all access panels in place, measure static

pressure external to unit (from supply to return).

3- Measure the indoor blower wheel RPM.

4- Referring to pages 9-14, use static pressure and

RPM readings to determine unit CFM. Use option/accessory air resistance table on page 15 when installing units with any of the options or accessories listed. Refer to table 3 for minimum airflow when electric heat is installed.

5- The blower RPM can be adjusted at the motor pulley.

Loosen Allen screw and turn adjustable pulley clockwise to increase CFM. Turn counterclockwise to decrease CFM. See figure 10. Do not exceed minimum and maximum number of pulley turns as shown in table 1.

TABLE 1

MINIMUM AND MAXIMUM PULLEY ADJUSTMENT

Belt Min. Turns Open Maxi. Turns Open

A Section No minimum 5

C - Blower Belt Adjustment

Maximum life and wear can be obtained from belts only if proper pulley alignment and belt tension are maintained. Tension new belts after a 24-48 hour period of operation. This will allow belt to stretch and seat grooves. Make sure blower and motor pulley are aligned as shown in figure 11.

INSTALLATIONS WITH DUCTWORK

ROOFTOP UNIT

READING LOCATION

SUPPLY

MAIN

RE

TURN

OFF OF MAIN RUN

DUCT RUN

LOCATION OF STATIC PRESSURE READINGS

INSTALLATIONS WITH CEILING DIFFUSERS

ROOFTOP UNIT

RETURN AIR

SUPPLY

FIRST BRANCH

SUPPLY AIR

READING

LOCATION

SUPPLY AIR

READING

LOCATION

DIFFUSER

FIGURE 9

Page 7

RETURN AIR

READING

RE

TURN

LOCATION

507111-02 2/2015

BLOWER ASSEMBLY

TO INCREASE BELT TENSION

1-Loosen four bolts securing motor base to mounting frame.

2-Slide the motor downward to tighten the belt.

3-Tighten four bolts on motor base.

LOOSEN FOUR BOLTS

AND SLIDE BLOWER MOTOR DOWNWARD

SIDE VIEW

TO TIGHTEN BELT

MOTOR

TO INCREASE CFM

LOOSEN ALLEN SCREW &

TURN PULLEY CLOCKWISE

ALLEN

SCREW

PULLEY

TO DECREASE CFM

TURN PULLEY

COUNTERCLOCKWISE

FIGURE 10

PULLEY ALIGNMENT

ALIGNED

MOTOR

PULLEY

BELT

NOT ALIGNED

BLOWER

PULLEY

FIGURE 11

1- Loosen four bolts securing motor base to mounting

frame. See figure 10.

2- Apply perpendicular force to center of span (X) with

enough pressure to deflect belt 1/64” for every inch of span length or 1.5mm per 100mm of span length.

Example: Deflection distance of a 40” span would be 40/64” or 5/8”.

Example: Deflection distance of a 400mm span would be 6mm.

3- Measure belt deflection force. For a used belt, the

deflection force should be 5 lbs. (35kPa). A new belt deflection force should be 7 lbs. (48kPa).

A force below these values indicates an undertensioned belt. A force above these values indicates an overtensioned belt.

MEASURE BELT TENSION

2- To increase belt tension -

Slide blower motor downward to tighten the belt. This increases the distance between the blower motor and the blower housing.

To loosen belt tension -

Slide blower motor upward to loosen the belt. This decreases the distance between the blower motor and the blower housing.

3- Tighten four bolts securing motor base to the

mounting frame.

D - Check Belt Tension

Overtensioning belts shortens belt and bearing life. Check belt tension as follows:

1- Measure span length X. See figure 12.

ZH 036, 048, 060

FORCE

DEFLECTION 1/64” PER INCH OF SPAN

OR 1.5mm PER 100mm OF SPAN

FIGURE 12

E-Field-Furnished Blower Drives

For field-furnished blower drives, use pages 9-14 to determine BHP and RPM required. Reference page 15 for additional air resistance and drive kit numbers. See table 2 for drive component manufacturer's numbers.

Page 8

BLOWER DATA - BELT DRIVE - ZHA036

BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.

FOR ALL UNITS ADD: 1 - Any factory installed options air resistance (heat section, economizer, wet coil, etc.). 2 - Any eld installed accessories air resistance (duct resistance, diffuser, etc.). See page 15 for blower motors and drives and wet coil and options/accessory air resistance data.

DOWNFLOW

Air

Volume

cfm

900 562 0.16 629 0.18 699 0.19 771 0.2 840 0.22 904 0.24 962 0.26 1015 0.29

1000 586 0.18 654 0.2 725 0.21 796 0.23 864 0.25 927 0.27 983 0.3 1034 0.33

1100 612 0.2 681 0.22 752 0.24 823 0.26 890 0.28 950 0.31 1004 0.34 1054 0.37

1200 641 0.23 711 0.25 783 0.27 852 0.29 917 0.32 975 0.35 1027 0.39 1074 0.42

1300 673 0.25 744 0.28 815 0.3 882 0.33 944 0.36 1000 0.4 1050 0.44 1096 0.48

1400 709 0.29 779 0.32 849 0.34 914 0.37 973 0.41 1026 0.45 1074 0.49 111 8 0.53

1500 747 0.33 816 0.36 883 0.39 945 0.42 1001 0.46 1052 0.51 1098 0.55 1141 0.59

Air

Volume

cfm

900 1065 0.32 1112 0.35 1158 0.38 1202 0.41 1243 0.44 1284 0.48 1323 0.52 1364 0.55

1000 1082 0.36 1128 0.39 1173 0.42 1216 0.45 1257 0.49 1297 0.53 1336 0.57 1375 0.6

1100 1100 0.4 1145 0.44 1189 0.47 1231 0.51 1272 0.54 1311 0.58 1349 0.62 1388 0.66

1200 111 9 0.45 1163 0.49 1206 0.52 1247 0.56 1287 0.6 1326 0.64 1364 0.68 1402 0.72

1300 1139 0.51 1182 0.55 1224 0.58 1265 0.62 1304 0.66 1342 0.71 1379 0.75 1416 0.79

1400 1160 0.57 1202 0.61 1243 0.65 1283 0.69 1322 0.73 1359 0.78 1396 0.82 1432 0.87

1500 1182 0.64 1223 0.68 1263 0.72 1303 0.76 1341 0.81 1378 0.85 1414 0.9 1449 0.94

HORIZONTAL

Air

Volume

cfm

900 580 0.14 649 0.17 721 0.19 794 0.22 868 0.24 938 0.27 998 0.3 1045 0.33

1000 612 0.17 681 0.19 752 0.22 825 0.25 897 0.27 963 0.3 1017 0.33 1061 0.37

1100 647 0.2 717 0.23 788 0.26 858 0.28 926 0.31 986 0.34 1036 0.38 1077 0.41

1200 687 0.23 757 0.26 826 0.29 893 0.32 955 0.35 1008 0.39 1054 0.42 1095 0.46

1300 730 0.27 798 0.3 864 0.33 926 0.37 982 0.4 1030 0.44 1073 0.47 1116 0.51

1400

1500 820 0.36 881 0.4 939 0.44 993 0.49 1039 0.53 1082 0.56 1124 0.59 1168 0.62

Air

Volume

cfm

900 1091 0.36 1140 0.38 1188 0.4 1232 0.43 1272 0.46 1309 0.49 1346 0.53 1383 0.57

1000 1105 0.4 1154 0.42 1201 0.45 1245 0.47 1284 0.5 1321 0.54 1357 0.58 1394 0.62

1100 1121 0.44 1169 0.47 1216 0.49 1259 0.52 1298 0.56 1335 0.6 1370 0.64 1406 0.69

1200 1139 0.49 1187 0.52 1234 0.54 1276 0.58 1314 0.62 1350 0.66 1385 0.71 1421 0.75

1300 1161 0.54 1208 0.57 1254 0.6 1295 0.64 1332 0.69 1366 0.73 1401 0.78 1436 0.83

1400 1185 0.59 1232 0.63 1276 0.67 1315 0.71 1351 0.76 1384 0.81 1419 0.86 1454 0.9

1500 1212 0.66 1257 0.7 1299 0.74 1337 0.79 1371 0.84 1404 0.89 1438 0.94 1473 0.99

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA01

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA01 Kit ZA04

775 0.31 840 0.34 902 0.38 959 0.42 1009 0.46 1054 0.5 1096 0.53 1140 0.56

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

External Static - in. w.g.

Kit ZA04

External Static - in. w.g.

Kit ZA04

Page 9

BLOWER DATA - BELT DRIVE - ZHA048

BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.

DOWNFLOW

Air

Volume

cfm

1200 641 0.23 711 0.25 783 0.27 852 0.29 917 0.32 975 0.35 1027 0.39 1074 0.42 1300 673 0.25 744 0.28 815 0.30 882 0.33 944 0.36 1000 0.40 1050 0.44 1096 0.48 1400 709 0.29 779 0.32 849 0.34 914 0.37 973 0.41 1026 0.45 1074 0.49 111 8 0.53 1500 747 0.33 816 0.36 883 0.39 945 0.42 1001 0.46 1052 0.51 1098 0.55 1141 0.59 1600 787 0.38 854 0.41 918 0.44 976 0.48 1030 0.52 1078 0.56 1123 0.61 1164 0.66 1700 827 0.43 892 0.46 952 0.49 1007 0.53 1058 0.58 1105 0.63 1148 0.68 1189 0.73 1800 868 0.48 929 0.52 986 0.55 1038 0.59 1087 0.64 1132 0.69 1174 0.75 1214 0.80 1900 907 0.54 966 0.58 1019 0.62 1069 0.66 111 6 0.71 1160 0.77 1200 0.82 1240 0.88 2000 946 0.60 1001 0.65 1053 0.69 1101 0.74 1146 0.79 1188 0.85 1228 0.91 1267 0.98

Air

Volume

cfm

1200 111 9 0.45 1163 0.49 1206 0.52 1247 0.56 1287 0.60 1326 0.64 1364 0.68 1402 0.72 1300 1139 0.51 1182 0.55 1224 0.58 1265 0.62 1304 0.66 1342 0.71 1379 0.75 1416 0.79 1400 1160 0.57 1202 0.61 1243 0.65 1283 0.69 1322 0.73 1359 0.78 1396 0.82 1432 0.87 1500 1182 0.64 1223 0.68 1263 0.72 1303 0.76 1341 0.81 1378 0.85 1414 0.90 1449 0.94 1600 1205 0.70 1245 0.75 1284 0.79 1323 0.84 1361 0.88 1397 0.93 1432 0.98 1467 1.03 1700 1228 0.78 1268 0.82 1307 0.87 1345 0.92 1382 0.97 1417 1.02 1452 1.07 1486 1.11 1800 1253 0.85 1292 0.91 1331 0.96 1368 1.01 1404 1.06 1439 1.11 1473 1.16 1506 1.21 1900 1279 0.94 1317 1.00 1355 1.05 1392 1.10 1427 1.16 1461 1.21 1494 1.26 1527 1.31 2000 1305 1.04 1343 1.10 1380 1.15 1416 1.21 1450 1.26 1484 1.32 1516 1.37 1549 1.42

HORIZONTAL

Air

Volume

cfm

1200 687 0.23 757 0.26 826 0.29 893 0.32 955 0.35 1008 0.39 1054 0.42 1095 0.46 1300 730 0.27 798 0.30 864 0.33 926 0.37 982 0.40 1030 0.44 1073 0.47 111 6 0.51 1400 1500 820 0.36 881 0.40 939 0.44 993 0.49 1039 0.53 1082 0.56 1124 0.59 1168 0.62 1600 864 0.42 921 0.46 976 0.51 1027 0.56 1072 0.60 111 3 0.63 1155 0.66 1198 0.69 1700 907 0.48 961 0.53 1013 0.58 1061 0.63 1105 0.67 1146 0.70 1187 0.73 1230 0.77 1800 948 0.56 999 0.61 1049 0.66 1096 0.71 1139 0.75 1180 0.78 1221 0.82 1262 0.86 1900 987 0.64 1037 0.69 1086 0.74 1132 0.79 1174 0.83 1214 0.86 1255 0.90 1295 0.95 2000 1028 0.73 1076 0.78 1123 0.83 1168 0.87 1210 0.91 1250 0.96 1289 1.00 1328 1.06

Air

Volume

cfm

1200 1139 0.49 1187 0.52 1234 0.54 1276 0.58 1314 0.62 1350 0.66 1385 0.71 1421 0.75 1300 1161 0.54 1208 0.57 1254 0.60 1295 0.64 1332 0.69 1366 0.73 1401 0.78 1436 0.83 1400 1185 0.59 1232 0.63 1276 0.67 1315 0.71 1351 0.76 1384 0.81 1419 0.86 1454 0.90 1500 1212 0.66 1257 0.70 1299 0.74 1337 0.79 1371 0.84 1404 0.89 1438 0.94 1473 0.99 1600 1242 0.73 1284 0.77 1324 0.82 1360 0.88 1394 0.93 1426 0.99 1460 1.04 1495 1.08 1700 1272 0.81 1312 0.86 1350 0.92 1385 0.98 1418 1.04 1451 1.09 1485 1.14 1519 1.19 1800 1302 0.90 1341 0.96 1377 1.02 1411 1.08 1444 1.15 1477 1.20 1510 1.25 1544 1.30 1900 1334 1.01 1371 1.07 1406 1.13 1439 1.20 1471 1.26 1504 1.32 1537 1.37 1571 1.41 2000 1365 1.12 1401 1.19 1435 1.25 1468 1.32 1500 1.38 1532 1.44 1565 1.49 1598 1.53

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA02

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZA02 Kit ZA05

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA02

775 0.31 840 0.34 902 0.38 959 0.42 1009 0.46 1054 0.50 1096 0.53 1140 0.56

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZA02 Kit ZA05

External Static - in. w.g.

RPM BHP RPM BHP RPM BHP RPM BHP

External Static - in. w.g.

Page 10

BLOWER DATA - BELT DRIVE - ZHA060

BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.

DOWNFLOW

Air

Volume

cfm

1600 764 0.35 822 0.39 880 0.42 936 0.46 991 0.51 1042 0.55 1091 0.60 1136 0.64 1700 801 0.40 857 0.44 913 0.48 968 0.52 1020 0.57 1070 0.61 111 7 0.66 1162 0.71 1800 838 0.46 893 0.50 947 0.54 1000 0.58 1051 0.63 1099 0.68 1145 0.73 1188 0.78 1900 876 0.52 929 0.56 982 0.61 1033 0.65 1082 0.70 1129 0.75 1173 0.80 1215 0.85 2000 914 0.59 966 0.63 1017 0.68 1067 0.72 111 5 0.77 1160 0.83 1203 0.88 1244 0.94 2100 953 0.66 1004 0.71 1054 0.76 1102 0.81 1148 0.86 1192 0.92 1233 0.98 1273 1.04 2200 993 0.74 1042 0.79 1090 0.85 1137 0.90 1181 0.96 1224 1.02 1264 1.09 1303 1.15 2300 1033 0.83 1081 0.89 1128 0.94 1173 1.01 1216 1.07 1257 1.14 1296 1.20 1334 1.27 2400 1074 0.93 1120 0.99 1166 1.05 1209 1.12 1251 1.19 1291 1.26 1329 1.33 1366 1.41

Air

Volume

cfm

1600 1180 0.68 1222 0.72 1263 0.76 1303 0.80 1341 0.85 1378 0.90 1414 0.94 1449 0.99 1700 1204 0.75 1245 0.79 1285 0.84 1325 0.88 1362 0.93 1398 0.98 1434 1.03 1468 1.08 1800 1229 0.83 1270 0.87 1309 0.92 1347 0.97 1384 1.02 1420 1.07 1454 1.12 1488 1.17 1900 1256 0.91 1296 0.96 1334 1.01 1371 1.07 1407 1.12 1442 1.17 1476 1.23 1509 1.28 2000 1284 1.00 1322 1.06 1360 1.11 1396 1.17 1431 1.23 1465 1.28 1498 1.33 1531 1.38 2100 1312 1.10 1350 1.16 1386 1.22 1422 1.28 1456 1.34 1489 1.40 1521 1.45 1554 1.50 2200 1341 1.22 1378 1.28 1414 1.34 1448 1.41 1481 1.46 1513 1.52 1546 1.57 1578 1.62 2300 1371 1.34 1407 1.41 1442 1.47 1475 1.54 1507 1.59 1539 1.65 1571 1.70 1602 1.75 2400 1402 1.48 1436 1.55 1470 1.61 1503 1.67 1535 1.73 1566 1.79 1597 1.84 1628 1.89

HORIZONTAL

Air

Volume

cfm

1600 783 0.38 844 0.41 902 0.44 957 0.48 1008 0.52 1056 0.56 1100 1700 825 0.44 882 0.47 938 0.50 989 0.54 1038 0.57 1083 0.62 1126 0.66 1166 0.71 1800 866 0.50 921 0.53 973 0.56 1021 0.60 1067 0.64 1111 0.68 1152 0.73 1191 0.78 1900 907 0.56 959 0.59 1008 0.63 1054 0.66 1098 0.71 1139 0.75 1179 0.80 1217 0.86 2000 948 0.63 996 0.66 1042 0.70 1086 0.74 1128 0.78 1168 0.83 1207 0.89 1244 0.94 2100 987 0.70 1033 0.74 1077 0.78 111 9 0.82 1159 0.87 1198 0.93 1235 0.99 1272 1.05 2200 1026 0.78 1070 0.82 111 2 0.87 1152 0.92 1191 0.98 1228 1.03 1265 1.10 1301 1.16 2300 1064 0.88 1106 0.92 1147 0.97 1186 1.03 1223 1.09 1260 1.15 1295 1.22 1331 1.28 2400 1102 0.98 1143 1.03 1182 1.08 1220 1.15 1256 1.21 1292 1.28 1327 1.35 1362 1.42

Air

Volume

cfm

1600 1183 0.68 1223 0.72 1263 0.76 1302 0.81 1340 0.86 1377 0.91 1413 0.95 1448 1.00 1700 1205 0.75 1245 0.79 1284 0.84 1322 0.89 1360 0.94 1396 0.99 1431 1.04 1465 1.09 1800 1230 0.83 1268 0.87 1306 0.92 1344 0.98 1380 1.03 1416 1.08 1450 1.13 1483 1.19 1900 1255 0.91 1292 0.96 1330 1.02 1367 1.07 1402 1.13 1437 1.18 1470 1.24 1503 1.29 2000 1281 1.00 1318 1.06 1355 1.12 1391 1.18 1425 1.23 1459 1.29 1492 1.35 1524 1.40 2100 1308 1.11 1345 1.17 1381 1.23 1416 1.29 1450 1.35 1482 1.41 1514 1.46 1546 1.52 2200 1337 1.23 1372 1.29 1408 1.35 1442 1.42 1475 1.47 1507 1.53 1538 1.59 1569 1.64 2300 1366 1.35 1401 1.42 1435 1.49 1469 1.55 1501 1.61 1532 1.67 1563 1.72 1594 1.77 2400 1396 1.49 1431 1.56 1464 1.63 1496 1.69 1528 1.75 1559 1.81 1589 1.86 1619 1.91

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA03

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA03

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

External Static - in. w.g.

Kit ZA03 Kit ZA06

External Static - in. w.g.

RPM BHP RPM BHP RPM BHP RPM BHP

0.60 1142 0.64

External Static - in. w.g.

Kit ZA03 Kit ZA06

Page 11

BLOWER DATA - BELT DRIVE - ZHB036

BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.

DOWNFLOW

Air

Volume

cfm

900 562 0.11 621 0.13 685 0.16 752 0.18 818 0.21 883 0.24 944 0.27 1001 0.30

1000 584 0.13 644 0.16 707 0.18 773 0.21 838 0.24 901 0.27 960 0.3 1015 0.33

1100 609 0.16 669 0.18 732 0.21 796 0.24 860 0.27 921 0.30 978 0.34 1031 0.37

1200 635 0.19 696 0.21 758 0.24 821 0.27 883 0.31 942 0.34 997 0.38 1049 0.42

1300 664 0.22 725 0.25 786 0.28 848 0.31 908 0.35 965 0.39 1018 0.43 1068 0.47

1400 696 0.26 756 0.29 816 0.32 876 0.36 935 0.40 989 0.44 1041 0.48 1089 0.52

1500 729 0.30 788 0.33 848 0.37 906 0.41 962 0.45 1015 0.50 1065 0.54 111 2 0.58

Air

Volume

cfm

900 1053 0.32 1103 0.35 1149 0.38 1193 0.41 1234 0.43 1274 0.47 1312 0.50 1351 0.53

1000 1066 0.36 1114 0.39 1160 0.42 1204 0.45 1245 0.48 1284 0.51 1322 0.54 1361 0.58

1100 1081 0.40 1128 0.43 1173 0.46 1216 0.49 1257 0.53 1296 0.56 1334 0.60 1372 0.63

1200 1097 0.45 1144 0.48 1188 0.51 1231 0.54 1271 0.58 1310 0.62 1347 0.66 1385 0.69

1300 111 5 0.50 1161 0.53 1204 0.56 1246 0.60 1286 0.64 1325 0.68 1362 0.72 1399 0.76

1400 1135 0.56 1179 0.59 1222 0.62 1264 0.66 1303 0.70 1341 0.75 1378 0.79 1415 0.83

1500 1157 0.62 1200 0.65 1242 0.69 1282 0.73 1321 0.77 1359 0.82 1396 0.86 1431 0.91

HORIZONTAL

Air

Volume

cfm

900 560 0.16 624 0.18 692 0.20 761 0.21 830 0.23 896 0.25 956 0.27 1012 0.29

1000 583 0.18 647 0.20 715 0.22 783 0.24 850 0.25 914 0.27 972 0.30 1025 0.33

1100 609 0.20 673 0.22 740 0.24 808 0.26 873 0.28 934 0.31 990 0.34 1041 0.37

1200 637 0.23 702 0.25 769 0.27 835 0.29 898 0.32 956 0.35 1009 0.38 1058 0.41

1300 669 0.26 734 0.28 800 0.30 863 0.33 924 0.36 979 0.39 1030 0.43 1077 0.46

1400 704 0.29 768 0.32 832 0.35 894 0.37 951 0.41 1004 0.44 1052 0.48 1097 0.52

1500 742 0.33 805 0.36 867 0.39 925 0.42 980 0.46 1030 0.50 1076 0.54 111 9 0.58

Air

olume

cfm

900 1064 0.32 111 4 0.35 1162 0.38 1208 0.41 1251 0.45 1293 0.49 1333 0.52 1373 0.56

1000 1076 0.36 1124 0.39 1170 0.42 1216 0.46 1259 0.49 1300 0.53 1340 0.57 1379 0.61

1100 1089 0.40 1136 0.43 1181 0.46 1225 0.50 1268 0.54 1308 0.58 1347 0.62 1386 0.66

1200 1104 0.45 1150 0.48 1194 0.51 1237 0.55 1279 0.59 1319 0.63 1357 0.67 1394 0.71

1300 1121 0.5 1165 0.53 1209 0.57 1251 0.61 1292 0.65 1331 0.69 1368 0.73 1405 0.78

1400 1140 0.56 1183 0.59 1225 0.63 1266 0.67 1306 0.71 1345 0.76 1382 0.8 1417 0.85

1500 1161 0.62 1202 0.65 1243 0.69 1284 0.73 1323 0.78 1360 0.83 1396 0.87 1432 0.92

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA01

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA01

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

External Static - in. w.g.

Kit ZA04

External Static - in. w.g.

Kit ZA04

Page 12

BLOWER DATA - BELT DRIVE - ZHB048

BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.

DOWNFLOW

Air

Volume

cfm

1200 620 0.23 681 0.29 744 0.34 809 0.39 875 0.43 941 0.47 1004 0.51 1060 0.54 1300 652 0.28 713 0.34 775 0.39 839 0.44 903 0.48 967 0.51 1025 0.55 1078 0.59 1400 687 0.33 747 0.39 809 0.44 871 0.49 934 0.53 994 0.57 1048 0.61 1098 0.64 1500 724 0.40 784 0.45 844 0.50 905 0.54 965 0.59 1021 0.62 1071 0.66 111 8 0.70 1600 764 0.46 823 0.51 882 0.56 940 0.60 997 0.65 1048 0.69 1094 0.72 1140 0.75 1700 806 0.53 863 0.58 919 0.62 975 0.67 1028 0.71 1075 0.75 111 9 0.78 1164 0.81 1800 849 0.60 903 0.65 957 0.69 1010 0.74 1058 0.78 1102 0.82 1145 0.85 1189 0.88 1900 892 0.68 944 0.72 995 0.77 1045 0.82 1089 0.86 1131 0.89 1174 0.92 1217 0.95 2000 935 0.76 984 0.81 1033 0.86 1079 0.91 1122 0.95 1163 0.97 1204 1.00 1247 1.03

Air

Volume

cfm

1200 1111 0.58 1156 0.60 1199 0.62 1241 0.63 1284 0.65 1326 0.67 1367 0.71 1408 0.74 1300 1127 0.62 1172 0.65 1214 0.66 1256 0.68 1299 0.70 1341 0.73 1381 0.77 1421 0.81 1400 1145 0.68 1189 0.70 1231 0.72 1274 0.74 1316 0.76 1357 0.79 1397 0.83 1436 0.88 1500 1164 0.73 1208 0.75 1251 0.78 1293 0.80 1334 0.83 1374 0.86 1413 0.91 1451 0.95 1600 1185 0.79 1229 0.81 1271 0.84 1313 0.86 1354 0.90 1393 0.94 1431 0.98 1468 1.03 1700 1208 0.84 1252 0.87 1294 0.90 1335 0.94 1375 0.98 1413 1.02 1449 1.07 1485 1.12 1800 1233 0.91 1276 0.94 1318 0.98 1358 1.02 1397 1.06 1434 1.11 1469 1.16 1504 1.21 1900 1261 0.98 1303 1.02 1343 1.06 1382 1.11 1420 1.16 1455 1.21 1490 1.26 1525 1.31 2000 1289 1.07 1330 1.11 1370 1.16 1407 1.21 1444 1.27 1478 1.32 1513 1.37 1547 1.42

HORIZONTAL

Air

Volume

cfm

1200 614 0.21 681 0.25 752 0.30 821 0.34 888 0.39 950 0.43 1006 0.46 1057 0.49 1300 644 0.24 712 0.29 782 0.34 850 0.39 915 0.43 974 0.47 1027 0.51 1076 0.53 1400 677 0.29 746 0.34 814 0.39 880 0.44 942 0.48 998 0.52 1049 0.55 1097 0.58 1500 714 0.34 781 0.40 848 0.45 911 0.49 1600 752 0.40 818 0.45 882 0.50 943 0.55 999 0.59 1050 0.62 1097 0.66 1142 0.69 1700 792 0.46 855 0.52 917 0.56 975 0.61 1028 0.64 1077 0.68 1123 0.72 1166 0.75 1800 832 0.53 894 0.58 952 0.63 1007 0.67 1058 0.70 1105 0.74 1149 0.78 1192 0.82 1900 873 0.60 932 0.65 988 0.69 1040 0.73 1088 0.77 1134 0.81 1177 0.85 1219 0.90 2000 914 0.67 970 0.72 1023 0.76 1073 0.80 1120 0.85 1163 0.89 1205 0.94 1246 0.99

Air

Volume

cfm

1200 1105 0.51 1152 0.53 1197 0.55 1240 0.58 1280 0.61 1320 0.64 1358 0.68 1395 0.72 1300 1123 0.55 1169 0.57 1213 0.60 1255 0.63 1295 0.67 1334 0.70 1372 0.74 1409 0.79 1400 1142 0.60 1187 0.63 1230 0.66 1272 0.69 1312 0.73 1350 0.77 1388 0.82 1424 0.86 1500 1163 0.66 1207 0.69 1249 0.72 1290 0.76 1330 0.80 1368 0.85 1405 0.90 1441 0.94 1600 1185 0.72 1228 0.75 1270 0.79 1310 0.83 1349 0.88 1387 0.93 1423 0.98 1459 1.03 1700 1209 0.78 1251 0.82 1292 0.87 1331 0.92 1370 0.97 1407 1.02 1443 1.07 1478 1.12 1800 1234 0.86 1275 0.91 1315 0.96 1354 1.01 1391 1.06 1428 1.11 1463 1.17 1498 1.22 1900 1260 0.95 1300 1.00 1340 1.05 1377 1.11 1414 1.16 1450 1.22 1485 1.27 1519 1.32 2000 1287 1.04 1326 1.10 1365 1.16 1402 1.21 1437 1.27 1472 1.33 1507 1.38 1541 1.43

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA02

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZA02 Kit ZA05

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP

Field Furnished Kit ZA02

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZA02 Kit ZA05

External Static - in. w.g.

RPM BHP RPM BHP RPM BHP RPM BHP

970 0.53 1023 0.57 1072 0.60 111 9 0.63

External Static - in. w.g.

Page 13

BLOWER DATA - BELT DRIVE - ZHB060

BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY WITH DRY INDOOR COIL AND AIR FILTERS IN PLACE.

DOWNFLOW

Air

Volume

cfm

1600 522 0.27 552 0.32 585 0.37 619 0.43 656 0.48 693 0.53 732 0.59 771 0.64 1700 539 0.32 570 0.37 603 0.43 638 0.48 674 0.53 711 0.59 749 0.64 787 0.69 1800 558 0.38 589 0.43 623 0.48 658 0.54 694 0.59 730 0.64 767 0.70 803 0.75 1900 578 0.44 610 0.49 643 0.54 678 0.60 714 0.65 749 0.70 785 0.76 819 0.82 2000 600 0.50 632 0.56 665 0.61 699 0.66 734 0.71 769 0.77 803 0.83 837 0.90 2100 623 0.57 655 0.62 688 0.68 721 0.73 755 0.79 789 0.84 822 0.91 854 0.98 2200 647 0.65 678 0.70 711 0.75 743 0.81 776 0.86 809 0.93 841 1.00 872 1.06 2300 671 0.73 702 0.78 734 0.83 766 0.89 798 0.95 829 1.02 860 1.09 890 1.16 2400 696 0.81 726 0.87 757 0.92 788 0.98 819 1.04 850 1.11 880 1.19 909 1.26

Air

Volume

cfm

1600 809 0.69 844 0.74 877 0.80 908 0.85 936 0.91 963 0.97 989 1.02 1014 1.08 1700 823 0.75 857 0.80 889 0.86 919 0.92 947 0.97 973 1.03 999 1.09 1024 1.14 1800 838 0.81 870 0.87 901 0.92 931 0.98 958 1.04 984 1.10 1009 1.16 1034 1.22 1900 853 0.88 885 0.94 915 0.99 944 1.05 971 1.11 996 1.17 1021 1.23 1045 1.29 2000 869 0.96 899 1.01 929 1.07 957 1.13 984 1.19 1009 1.25 1033 1.31 1058 1.38 2100 885 1.04 915 1.10 944 1.15 971 1.22 997 1.28 1022 1.34 1046 1.40 1070 1.46 2200 902 1.13 931 1.19 959 1.24 986 1.31 1012 1.37 1036 1.43 1060 1.50 1084 1.56 2300 920 1.23 948 1.29 975 1.35 1001 1.41 1027 1.47 1051 1.53 1075 1.60 1098 1.66 2400 938 1.33 965 1.39 992 1.45 1017 1.52 1042 1.58 1066 1.64 1090 1.70 111 3 1.77

HORIZONTAL

Air

Volume

cfm

1600 525 0.30 561 0.34 597 0.39 635 0.43 673 0.47 711 0.51 748 1700 543 0.34 578 0.39 615 0.43 653 0.48 691 0.52 728 0.57 765 0.62 800 0.67 1800 561 0.39 597 0.44 635 0.49 672 0.53 710 0.58 746 0.63 782 0.68 816 0.73 1900 581 0.44 618 0.49 655 0.54 692 0.59 729 0.64 765 0.69 800 0.75 833 0.80 2000 602 0.50 639 0.55 676 0.61 713 0.66 749 0.71 784 0.76 818 0.82 850 0.88 2100 625 0.57 661 0.62 698 0.67 735 0.73 770 0.78 804 0.84 837 0.90 868 0.96 2200 648 0.64 685 0.69 721 0.75 757 0.80 791 0.86 824 0.92 856 0.98 886 1.05 2300 673 0.71 709 0.77 745 0.83 780 0.88 813 0.94 845 1.01 876 1.08 905 1.15 2400 699 0.79 734 0.85 769 0.91 803 0.97 835 1.04 866 1.11 896 1.18 924 1.25

Air

Volume

cfm

1600 819 0.66 851 0.72 883 0.77 913 0.83 943 0.89 971 0.95 998 1.01 1024 1.07 1700 833 0.72 865 0.78 896 0.84 926 0.90 954 0.96 982 1.02 1009 1.08 1034 1.14 1800 848 0.79 880 0.85 910 0.92 939 0.98 967 1.04 994 1.10 1020 1.16 1045 1.23 1900 864 0.87 895 0.93 924 0.99 953 1.06 980 1.12 1007 1.18 1032 1.25 1056 1.31 2000 881 0.95 911 1.01 940 1.08 967 1.14 994 1.21 1020 1.27 1044 1.34 1068 1.40 2100 898 1.03 927 1.10 955 1.17 982 1.23 1008 1.30 1033 1.37 1057 1.43 1080 1.50 2200 916 1.12 944 1.19 971 1.26 998 1.33 1023 1.40 1047 1.47 1071 1.54 1093 1.60 2300 934 1.22 961 1.29 988 1.36 1014 1.43 1038 1.50 1062 1.58 1085 1.65 1107 1.71 2400 952 1.32 979 1.40 1005 1.47 1030 1.54 1054 1.62 1077 1.69 1099 1.76 1121 1.83

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZAA01 Kit ZAA02

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZAA02 Kit ZAA03

0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80

RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZAA01 Kit ZAA02

0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Kit ZAA02 Kit ZAA03

External Static - in. w.g.

RPM BHP RPM BHP RPM BHP RPM BHP

0.56 784 0.61

External Static - in. w.g.

Page 14

BLOWER DATA

DRIVE KIT SPECIFICATIONS

Model No.

ZHA/ZHB036

ZHA/ZHB048

ZHA060

ZHB060

NOTE - Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor hp required. Maximum usable hp of motors furnished are shown. In Canada, nominal motor hp is also maximum usable motor hp. If motors of comparable hp are used, be sure to keep within the service factor limitations outlined on the motor nameplate.

1 hp blower motor is not available for 208/230V-1ph applications. 2 1.5 hp motor is required with ZA05, ZA06 and ZAA03 drive kits.

POWER EXHAUST FAN PERFORMANCE

Return Air System Static Pressure - in. w.g.

OPTIONS / ACCESSORIES AIR RESISTANCE - in. w.g.

Air Volume

cfm

900 0.01 0.01 - - - 0.05 0.03 0.04 1000 0.02 0.01 - - - 0.06 0.03 0.05 1100 0.02 0.02 - - - 0.08 0.04 0.05 1200 0.02 0.02 0.01 0.09 0.05 0.06 1300 0.03 0.02 0.02 0.12 0.05 0.07 1400 0.03 0.03 0.02 0.17 0.06 0.08 1500 0.04 0.03 0.02 0.22 0.07 0.08 1600 0.04 0.03 0.03 0.26 0.08 0.09 1700 0.05 0.04 0.03 0.30 0.09 0.10 1800 0.05 0.04 0.03 0.33 0.10 0.11 1900 0.06 0.05 0.04 0.33 0.11 0.12 2000 0.06 0.05 0.04 0.31 0.12 0.13 2100 - - - 0.06 0.05 0.27 0.13 0.14 2200 - - - 0.06 0.05 0.29 0.14 0.15 2300 - - - 0.07 0.05 0.31 0.15 0.16 2400 - - - 0.07 0.06 0.32 0.16 0.18

CEILING DIFFUSERS AIR RESISTANCE (in. w.g.)

Air Volume

cfm

800 0.15 0.13 0.11 0.11 1000 0.19 0.16 0.14 0.14 1200 0.25 0.20 0.17 0.17 1400 0.33 0.26 0.20 0.20 1600 0.43 0.32 0.20 0.24 1800 0.56 0.40 0.30 0.30 2000 0.73 0.50 0.36 0.36 2200 0.95 0.63 0.44 0.44

Nominal Maximum Nominal Maximum

0.00 1865

0.05 1785

0.10 1710

0.15 1630

0.20 1545

0.25 1450

0.30 1350

0.35 1240

ZHA036, ZHA048 ZHA060, ZHB036 ZHB048, ZHB060 Downow Horizontal

RTD9-65 Step-Down Diffuser

2 Ends

Open

1 Side &

2 Ends Open

Blower Motor Choice (HP)

1.15 1.5 1.7

Wet Indoor Coil

CEILING DIFFUSER AIR THROW DATA

FD9-65

All Ends &

Sides Open

Flush

Diffuser

Page 15

Drive Kit No. RPM Range

ZA01 678 - 1035 ZA04 964 - 1471 ZA02 803 - 1226

ZA05 1098 - 1490 ZA03 906-1383

ZA06 1262-1634 ZAA01 522 - 784 ZAA02 632 - 875

ZAA03 798 - 1105

Air Volume Exhausted

cfm

Electric

Economizer

Heat

Air Volume - cfm

Effective Throw - ft.

Model No. RTD9-65 FD9-65

800 10 - 17 14 - 18 1000 10 - 17 15 - 20 1200 11 - 18 16 - 22 1400 12 - 19 17 - 24 1600 12 - 20 18 - 25 1800 13 - 21 20 - 28 2000 14 - 23 21 - 29 2200 16 - 25 22 - 30

Effective throw based on terminal velocities of 75 ft. per minute.

TABLE 2

DRIVE COMPONENT MANUFACTURER'S NUMBERS

DRIVE COMPONENT PART NUMBERS

Drive No.

Z01 1VP34 X 7/8 31K6901 AK54 X 5/8 10024430 A40 10024517

Z02 1VP34 X 7/8 31K6901 AK46 X 5/8 10024431 A39 10024516

Z03 1VP34 X 7/8 31K6901 AK41 X 5/8 10024428 A39 10024516

Z04 1VP34 X 7/8 31K6901 AK39 X 5/8 10024432 A38 10024515

Z05 1VP44 X 7/8 P81488 AK49 X 5/8 10024426 A41 10024518

Z06 1VP50 X 7/8 53J1501 AK51 X 5/8 10024429 A42 10024519

ZAA01 1VP34 X 7/8 31K69 AK69 X 1 37L47 AX51 13H01

ZAA02 1VP40 X 7/8 79J03 BK80H 100788-03 A53 100245-40

ZAA03 1VP40 X 7/8 79J03 AK59 X 1 31K68 A50 100245-29

MINIMUM AIRFLOW - UNITS WITH ELECTRIC HEAT

CFM - Downflow and Horizontal

ZHA036-060, ZHB036-048 ZHB060

5 960 1750

7.5 960 1750 10 960 1750

Motor Pulley Blower Pulley Belts

Browning OEM Browning OEM Browning OEM

TABLE 3

A first-stage Y1 cooling demand will energize L1 reversing valve solenoid and compressor 1.

Units With Optional Economizer The optional economizer will start on a first stage (Y1) cooling demand when outdoor air is suitable. An increased cooling demand (Y2) will energize compressor 1.

15 960 1750

22.5 1280 1750

Units with electric heat (5-22.5kW) can operate up to 1.6”w.g. maximum static pressure.

2- Refrigerant circuits are factory charged with R-410A

refrigerant. See unit rating plate for correct amount of charge.

Start-Up

B-Three Phase Scroll Compressor Voltage Phasing

IMPORTANT

This unit is equipped with a crankcase heater. Make sure heater is energized 24 hours before unit startup to prevent compressor damage as a result of slugging.

A-Start-Up

Heating

1- Set thermostat or temperature control device to

initiate a first-stage heating demand.

2- A first-stage heating demand (W1) will energize

compressors 1 and the outdoor fan.

Note - L1 reversing valve is de-energized in the heating mode.

ZH Units With Optional Electric Heat -

An increased heating demand (W2) will energize electric heat. Electric heat is also energized during the defrost cycle (W1) to maintain discharge air temperature.

Cooling

1- Set thermostat or temperature control device fan

switch to AUTO or ON. Set thermostat or temperature control device to initiate a first-stage cooling demand.

ZH 036, 048, 060

Three phase scroll compressors must be phased sequentially to ensure correct compressor and blower rotation and operation. Compressor and blower are wired in phase at the factory. Power wires are color-coded as follows: line 1-red, line 2-yellow, line 3-blue.

1- Observe suction and discharge pressures and

blower rotation on unit start-up.

2- Suction pressure must drop, discharge pressure

must rise, and blower rotation must match rotation marking.

If pressure differential is not observed or blower rotation is not correct:

3- Disconnect all remote electrical power supplies. 4- Reverse any two field-installed wires connected to

the line side of K1 contactor. Do not reverse wires at blower contactor.

Make sure the connections are tight.

Discharge and suction pressures should operate at their normal start‐up ranges.

Page 16

C - Refrigerant Charge and Check

WARNING-Do not exceed nameplate charge under any condition.

This unit is factory charged and should require no further adjustment. If the system requires additional refrigerant,

reclaim the charge,

evacuate the system, and add

required nameplate charge.

NOTE - System charging is not recommended below 60°F (15°C). In temperatures below 60°F (15°C), the charge must be weighed into the system.

If weighing facilities are not available, or to check the charge, use the following procedure:

6- Continue the process until measured liquid

temperature agrees with the target liquid temperature. Do not go below the target liquid temperature when adjusting charge. Note that suction pressure can change as charge is adjusted.

7- Example ZHA036: At 95°F outdoor ambient and a

measured suction pressure of 130psig, the target liquid temperature is 105.5°F. For a measured liquid temperature of 106°F, add charge in increments until measured liquid temperature agrees with the target liquid temperature.

D - Compressor Controls

IMPORTANT - Charge unit in standard cooling mode high stage only

1- Make sure outdoor coil is clean. Attach gauge

manifolds and operate unit at full CFM in cooling mode with economizer disabled until system stabilizes (approximately five minutes). Make sure all outdoor air dampers are closed.

2- Compare the normal operating pressures (see tables

4 - 9) to the pressures obtained from the gauges. Check unit components if there are significant differences.

3- Measure the outdoor ambient temperature and the

suction pressure. Refer to the appropriate circuit charging curve to determine a target liquid temperature.

Note - Pressures are listed for sea level applications.

See unit wiring diagram to determine which controls are used in each unit. Optional controls are identified on wiring diagrams by arrows at junction points.

1- Defrost Switch (S6)

Defrost switch closes to initiate defrost when liquid line temperature falls to 42F (5.6C). Defrost switch opens when liquid line temperature reaches 70F (21C) to terminate defrost. If the liquid line temperature does not rise above 70F (21C), the CMC1 will terminate defrost after 14 minutes. The defrost switch is located on the liquid line between the outdoor expansion valve and the distributor

2- Defrost Control (CMC1)

Defrost is liquid line temperature initiated and operates for 14 minutes unless terminated by liquid line temperature.

4- Use the same thermometer to accurately measure the

liquid temperature (in the outdoor section).

When the liquid line temperature drops below 42°F (5.6C), the defrost switch closes and signals the

 If measured liquid temperature is higher than the target liquid temperature, add refrigerant to the system.

 If measured liquid temperature is lower than the target liquid temperature, recover some refrigerant from the system.

defrost control that a defrost cycle is needed. If the defrost switch is still closed after 90 minutes (default), a defrost cycle begins and operates for up to 14 minutes. The defrost switch can terminate the defrost cycle before the 14 minutes elapses if liquid line temperature reaches 70F (21C)

5- Add or remove charge in increments. Allow the

system to stabilize each time refrigerant is added or removed.

Electric heat is energized during defrost to maintain discharge air temperature.

TABLE 4

ZHA036 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature

65 F 75 F 85 F 95 F 105 F 115 F

Suct

(psig)

119 235 122 272 124 314 126 359 129 409 132 461

128 241 130 279 132 319 136 364 146 421 140 470

139 245 146 285 151 331 155 377 155 428 159 482

145 248 154 290 163 335 170 384 174 438 179 498

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Page 17

507111-02 2/2015

Disc

(psig)

TABLE 5

ZHA048 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature

65 F 75 F 85 F 95 F 105 F 115 F

Suct

(psig)

113 253 116 293 119 336 122 383 125 435 128 492

121 258 123 297 126 341 129 387 133 440 137 498

133 267 138 308 143 354 146 401 151 459 154 516

140 273 148 317 155 366 161 418 167 475 172 536

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

TABLE 6

ZHA060 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature

65 F 75 F 85 F 95 F 105 F 115 F

Suct

(psig)

113 254 115 292 119 335 122 380 125 430 128 487

121 260 123 299 126 343 130 391 134 440 137 496

130 265 138 308 143 354 147 404 151 456 154 513

136 270 145 315 153 364 160 414 167 471 172 529

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

TABLE 7

ZHB036 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature

65 F 75 F 85 F 95 F 105 F 115 F

Suct

(psig)

119 236 122 274 125 315 128 361 130 410 133 464

126 239 128 278 132 320 136 366 138 416 141 471

135 245 144 285 151 330 153 380 158 429 161 487

140 250 151 290 159 335 167 385 174 440 178 498

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

TABLE 8

ZHB048 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature

65 F 75 F 85 F 95 F 105 F 115 F

Suct

(psig)

116 248 119 287 121 328 123 374 126 423 128 477

123 252 127 292 129 336 132 382 135 433 137 487

133 260 140 302 145 347 148 395 152 451 156 505

137 264 146 308 154 357 162 409 168 464 173 523

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

TABLE 9

ZHB060 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature

65 F 75 F 85 F 95 F 105 F 115 F

Suct

(psig)

114 255 118 297 120 338 123 387 126 433 130 487

121 257 125 298 131 350 131 389 134 443 137 504

131 267 138 311 144 362 148 410 152 457 153 524

137 269 143 315 154 364 162 417 167 474 169 534

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Page 18

ZH 036, 048, 060

Disc

(psig)

Disc

(psig)

Disc

(psig)

130

120

110

100

ZHA 036 CHARGING CURVE

Outdoor Temperature (°F)

115°

105°

95°

85°

75°

110 120 130 140 150 160 170

Suction Pressure (psig)

65°

130

120

110

ZHA048 CHARGING CURVE

95°

100

85°

180

Outdoor Temperature (°F)

115°

105°

110 120 130 140 150 160 170

75°

65°

180

Suction Pressure (psig)

Page 19

507111-02 2/2015

ZHA060 CHARGING CURVE

130

120

110

95°

100

85°

75°

65°

110 120 130 140 150 160 170

Suction Pressure (psig)

Outdoor Temperature (°F)

115°

105°

180

130

ZHB 036 CHARGING CURVE

120

110

100

110 120 130 140 150 160 170

65°

75°

Suction Pressure (psig)

85°

Outdoor Temperature (°F)

115°

105°

95°

180

ZH 036, 048, 060

Page 20

130

120

110

ZHB048 CHARGING CURVE

Outdoor Temperature (°F)

115°

105°

100

110 120 130 140 150 160 170

65°

75°

85°

Suction Pressure (psig)

95°

130

120

ZHB060 CHARGING CURVE

180

Outdoor Temperature (°F)

115°

105°

110

95°

100

85°

75°

65°

110 120 130 140 150 160 170

Suction Pressure (psig)

Page 21

507111-02 2/2015

Defrost Control Board

The defrost thermostat and the defrost control work together to ensure that the heat pump outdoor coil does not ice excessively during the heating mode.

Compressor Accumulated Run-Time Interval

The defrost control will not energize a defrost cycle unless the unit has been operating in heating mode for an accumulated 90 minutes (default). The run time interval can be changed by moving the jumper on the CMC board timing pins. See figure 13.

DEFROST CONTROL BOARD CMC1

TIMING JUMPER

90 MINUTES

DIAGNOSTIC

LEDS

REMOVED AT THE

FACTORY TO DISABLE

COMPRESSOR DELAY

The defrost interval can be adjusted to 30, 60, or 90 minutes. The defrost timing jumper is factory-installed to provide a 90-minute defrost interval. If the timing selector jumper is not in place, the control defaults to a 90-minute defrost interval.

Defrost Test Option

A TEST option is provided for troubleshooting. The TEST mode may be started any time the unit is in the heating mode and the defrost thermostat is closed or jumpered. If the timing jumper is in the TEST position at power‐up, the defrost control will ignore the test pins. When the jumper is placed across the TEST pins for two seconds, the control will enter the defrost mode. If the jumper is removed before an additional 5-second period has elapsed (7 seconds total), the unit will remain in defrost mode until the defrost switch opens or 14 minutes have passed. If the jumper is not removed until after the additional 5-second period has elapsed, the defrost will terminate and the test option will not function again until the jumper is removed and re-applied.

Diagnostic LEDs

The defrost board uses two LEDs for diagnostics. The LEDs flash a sequence according to the condition.

TABLE 10

Defrost Control Board Diagnostic LED

Mode

No power to control OFF OFF

Normal operation / power to control

Anti‐short cycle lockout

High pressure switch fault

High pressure switch lockout

Green LED (DS2)

Simultaneous Slow FLASH

Alternating Slow FLASH

Slow FLASH OFF

ON OFF

Red LED (DS1)

FIGURE 13

ZH 036, 048, 060

Page 22

Service

The unit should be inspected once a year by a qualified service technician.

CAUTION

Label all wires prior to disconnection when servic ing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

TABLE 11

UNIT FILTERS

Unit Qty Filter Size - inches (mm)

ZHA036, 048 4 14 X 20 X 2 (352 X 508 X 51)

ZHA060, ZHB036 4 16 X 20 X 2 (406 X 508 X 51)

ZHB048, 060

NOTE-Filters must be U.L.C. certified or equivalent for use in Canada.

Each

16 X 20 X 2 (406 X 508 X 51) 20 X 20 X 2 (508 X 508 X 51)

WARNING

The State of California has determined that this product may contain or produce a chemical or chemicals, in very low doses, which may cause se rious illness or death. It may also cause cancer, birth defects, or reproductive harm.

A - Lubrication

All motors are lubricated at the factory. No further lubrication is required.

B-Compressor

If Interlink compressor replacement is necessary, call 1-800-4-LENNOX (1-800-453-6669).

IMPORTANT

Some scroll compressors have an internal vacu um protector that will unload scrolls when suc tion pressure goes below 20 psig. A hissing sound will be heard when the compressor is run ning unloaded. Protector will reset when low pressure in system rises above 40 psig. DO NOT REPLACE COMPRESSOR.

C - Filters

Units are equipped with temporary filters which must be replaced prior to building occupation. See table 11 for correct filter size. Refer to local codes or appropriate jurisdiction for approved filters.

BACK OF UNIT

LIFT UP AND PULL

OUT (TOOLLESS)

FILTER ACCESS PANEL

FIGURE 14

REMOVE FILTERS

SLIDE FILTER STOP UP

TO REMOVE FILTERS

To change filters, open filter access panel on back side of unit. See figure 14. Lift filter stop to remove filters. See figure 15.

WARNING

Units are shipped from the factory with temporary filters. Replace filters before building is occupied. Damage to unit could result if filters are not re placed with approved filters. Refer to appropriate codes.

Approved filters should be checked monthly and replaced when necessary. Take note of air flow direction marking on filter frame when reinstalling filters. See figure 15.

FIGURE 15

Page 23

507111-02 2/2015

D - Supply Air Blower Wheel

Annually inspect supply air blower wheel for accumulated dirt or dust. Turn off power before attempting to remove access panel or to clean blower wheel.

E - Indoor Coil

Inspect and clean coil at beginning of each cooling and heating season. Clean using mild detergent or commercial coil cleanser. Flush coil and condensate drain with water taking care not to get insulation, filters and return air ducts wet.

CLEAN OUTDOOR COIL

ENDPLATE IS SECURED TO MULLION

OUTDOOR

COILS

TOP VIEW

SUPPLY

AIR

RETURN

AIR

F - Outdoor Coil

Clean outdoor coil annually with detergent or commercial coil cleaner and inspect monthly during the cooling season.

Outdoor coils are made of single and two formed slabs. On units with two slabs, dirt and debris may become trapped between the slabs. To clean between slabs, carefully separate coil slabs and wash them thoroughly. See figure 16. Flush coils with water following cleaning.

Note - Remove all screws and gaskets prior to cleaning procedure and replace upon completion.

G - Filter Drier

The unit is equipped with a biflow filter drier. if replacement is necessary, order another of like design.

1- Remove screws securing coil end plate to mullion.

2- Remove wire ties connecting coils slabs and separate

slabs 3-4” (76-102mm).

3- Clean coils with detergent or commercial coil cleaner.

4- Rinse thoroughly with water and reassemble

5- Secure coil slabs together using field-provided wire

ties.

FIGURE 16

ZH 036, 048, 060

Page 24

Lennox ZHA036, ZHA048, ZHA060 Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual