Installation Manual

ManualsBrandsAirQuest ManualsCentral Air & Heating4 Ton 19 SEER Variable Speed Heat Pump

428 01 5700 02 10/25/17

Specifications subject to change without notice.

INSTALLATION INSTRUCTIONS

R- 410A Variable Speed Split System Heat Pumps

CVH8, HVH8, TVH8

These instructions must be read and understood completely before attempting installation.

TABLE OF CONTENTS

PAGE NO.

SAFETY CONSIDERATIONS 1....................

Installation Recommendations 2.....................

Installation 2....................................

Step 1 — Check Equipment and Job Site 2.............

Step 2 — Install on a Solid, Level Mounting Pad 3.......

Step 3 — Clearance Requirements 3..................

Step4—OperatingAmbient 3......................

Step 5 — Elevate Unit 3...........................

Step 6 — Make Piping Connections 3.................

Step 7 — Make Electrical Connections 5...............

Step 8 — Compressor Crankcase Heater 6..............

Airflow Setup for Observer

Wall Control Furnace or FCM4X Fan Coil 6...........

Airflow Setup for Non - communicating Fan Coil 6......

Airflow Setup for Non- communicating Furnaces 6......

Step 9 — Install Accessories 6.......................

Step 10 — Start- Up 7.............................

Step 11 — System Functions and

Sequence of Operation 7..........................

Step 12 — Check Charge 8.........................

Step 13 — Pumpdown & Evacuation 10...............

Major Components 11............................

Troubleshooting 11...............................

Final Checks 15..................................

Care and Maintenance 15...........................

Technical Labels 16...............................

R- 410A QUICK REFERENCE GUIDE 23............

IMPORTANT: Effective January 1, 2015, all split system and

packaged air conditioners must be installed pursuant to applicable

regional efficiency standards issued by the Department of Energy.

Information in these installation instructions pertains only to

CVH8, HVH8, TVH8 series u nits.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, 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 information or assistance. The qualified

installer or agency must use factory- authorized kits or accessories

when modifying 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 for brazing operations.

Have fire extinguisher available. Read these instructions

thoroughly and follow all warnings or cautions included in

literature and attached to the unit. Consult local building codes and

current editions of the National Electrical Code (NEC) NFPA 70.

In Canada, refer to current editions of the Canadian electrical code

CSA 22.1.

Recognize safety information. This is the safety- alert symbol

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

manuals, be alert to the potential for personal injury. Understand

these signal wo rds; DANGER, WARNING, and CAUTION. These

words are used with the safety- alert symbol. DANGER 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. CAUTION is used to identify unsafe

practices which would result in minor personal injury or product

and property damage. NOTE is used to highlight suggestions

which will result in enhanced installation, reliability, or operation.

CUT HAZARD

Failure to follow this caution may result in personal injury .

Sheet metal parts may have sharp edges or burrs. Use care and

wear appropriate protective clothing and gloves when

handling parts.

CAUTION

WARNING

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this warning could result in personal injury

or equipment damage.

R- 410A refrigerant systems operate at higher pressures than

standard R- 22 systems. Do not use R - 22 service equipment

or components on R- 410A refrigerant equipment.

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Before installing, modifying, or servicing system, main

electrical 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 label.

Summary of content (24 pages)

PAGE 1
INSTALLATION INSTRUCTIONS R- 410A Variable Speed Split System Heat Pumps CVH8, HVH8, TVH8 These instructions must be read and understood completely before attempting installation. TABLE OF CONTENTS PAGE NO. SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1 Installation Recommendations . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Step 1 — Check Equipment and Job Site . . . . . . . . . . . . .
PAGE 2
Indoor Thermostat Control Options Model Observer® Wall Control Standard HP Thermostat CVH8, HVH8, TVH8 Yes* Yes** NOTE: TSTAT0201CW Communicating Wi- Fi wall control. Non Wi- Fi cannot be used. All trademarks are the property of their respective owners. Wi- Fi is a registered trademark of Wi- Fi Alliance Corporation. * Version 5.0 software or newer required. ** Using standard HP thermostat limits functionality of system.
PAGE 3
Step 1 — Check Equipment and Job Site Step 4 — Operating Ambient Unpack Unit The minimum outdoor operating ambient in cooling mode is 40_F (4.4_C) with Observer®Wall Control, 55_F (12.8_C) with non- communicating systems. The maximum outdoor operating ambient in cooling mode is 115_F (46.1_C). Compressor protections will prevent cooling mode operation below minimum ambient temperature range.
PAGE 4
Outdoor units may be connected to indoor section using accessory tubing package or field- supplied refrigerant grade tubing of correct size and condition. For tubing requirements between 80 - 100 ft. (24.38 - 30.48 m), capacity and performance losses can occur. Follow the pipe sizing recommendations in the CVH8, HVH8, TVH8 Product data to manage these losses. This unit shall not be installed with greater than 100 ft (30.48 m) of equivalent line length. Refer to Table 1 for field tubing diameters.
PAGE 5
000 4500 4000 3500 3000 2500 2000 1500 1000 500 WARNING ! MICRONS LEAK IN SYSTEM ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. VACUUM TIGHT TOO WET TIGHT DRY SYSTEM 0 1 2 3 4 5 MINUTES 6 7 A95424 The unit cabinet must have an uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur. The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes.
PAGE 6
Final Wiring Check Step 8 — Compressor Crankcase Heater IMPORTANT: Check factory wiring and field wire connections to ensure terminations are secured properly. Check wire routing to ensure wires are not in contact with tubing, sheet metal, etc. This compressor has an internal crankcase heater. Furnish power to the unit a minimum of 24 hr before starting the unit for the first time. Upon initial start- up of unit, status code 68 will be generated and system will operate at stage 2 for 11 minutes.
PAGE 7
Step 10 — Start- Up ! CAUTION UNIT OPERATION AND SAFETY HAZARD Failure to follow this caution may result in minor personal injury, equipment damage or improper operation. Observe the following: 1.Do not overcharge system with refrigerant. 2.Do not operate unit in a vacuum or at negative pressure. 3.Do not disable low pressure transducer or system safety devices such as discharge thermistor or the high pressure switch. 4.Dome temperatures may be hot. 5.
PAGE 8
Outdoor Fan Motor Operation The outdoor unit control (Fig. 9) energizes outdoor fan anytime the compressor is operating, except for defrost. The OD fan motor is variable speed. The speed will change depending on the ambient temperature and the cooling or heating capacity required. When the OFM begins to start, it will rotate back and forth a couple times slowly. It will eventually rotate full speed. Time Delays The unit time delays include: S 3.
PAGE 9
NOTE: If the line length is beyond 80ft (24.38 m) or greater than 20ft (6.10 m) vertical separation see Long line guideline for special charging requirement. Fig. 14 - Charging in Cooling Mode CVH8, HVH8, TVH848 Fig. 15 - Charging in Cooling Mode CVH8, HVH8, TVH860 Fig. 10 - Charging in Cooling Mode CVH8, HVH8, TVH824 Fig. 11 - Charging in Cooling Mode CVH8, HVH8, TVH825 Heating Check Chart Procedure (See Fig.
PAGE 10
Fig. 16 - Heating Pressure Check Chart CVH8, HVH8, TVH824 Fig. 20 - Heating Pressure Check Chart CVH8, HVH8, TVH848 Heating Check Chart - 060 Fig. 17 - Heating Pressure Check Chart CVH8, HVH8, TVH825 Fig. 21 - Heating Pressure Check Chart CVH8, HVH8, TVH860 Step 13 — Pumpdown & Evacuation ! CAUTION ENVIRONMENTAL HAZARD Failure to follow this caution may result in environmental damage. Federal regulations require that you do not vent refrigerant to the atmosphere.
PAGE 11
1. Connect gauges to CVH8, HVH8, TVH8 liquid and vapor service valve ports to monitor operating pressures during and at completion of the procedure. Attach recovery system or vacuum pump to gauge set as needed for the service procedure. The service valves must be open to evacuate the unit through the line set service ports. The suction capillary service port is a direct connection to the suction port of the compressor and may also be used. 2. Begin evacuation or refrigerant.
PAGE 12
NOTE: The model plug takes priority over factory model information input at the factory. If the model plug is removed after initial power up, the unit will operate according to the last valid model plug installed, and flash the appropriate fault code temporarily. Table 3 – Factory Supplied Model Plug Information Table 4 – 10K/50Kohms Resistance Values vs Temperature 10Kohms _C (_F) TEMPERATURE 25.0 (77.0) 0.0 (32.0) -28.0 (-18.
PAGE 13
The thermistor comparisons are not performed during low ambient cooling or defrost operation. Failed Thermistor Default Operation Factory defaults have been provided in the event of failure of outdoor air thermistor (OAT) and/or outdoor coil thermistor (OCT). If the OAT sensor should fail, defrost will be initiated based on coil temperature and time. If the OCT sensor should fail, defrost will occur at each time interval during heating operation, but will terminate after 2 minutes.
PAGE 14
6. During the removal of the compressor fusite cap, do not remove the RTV sealant. Remove the harness plug, measure the resistances, and compare to Table 5. 7. Special care will need to be taken with the replacement of the compressor fusite cap. Make sure the two holes in the compressor fusite terminal box are still full of RTV sealant before the cap is reinstalled. The factory RTV can be reused as long as none of it has been removed during the cap removal. 8.
PAGE 15
FINAL CHECKS Table 6 – Troubleshooting IMPORTANT: Before leaving job, be sure to do the following: 1. Ensure that all wiring is routed away from tubing and sheet metal edges to prevent rub- through or wire pinching. 2. Ensure that all wiring and tubing is secure in unit before adding panels and covers. Securely fasten all panels and covers. 3. Tighten service valve stem caps to 1/12- turn past finger tight. 4. Leave User’s Manual with owner.
PAGE 16
Specifications subject to change without notice. 428 01 5700 02 12.00 23.47 5.83 282 47 12.05 23.47 5.83 282 47 SCFM MBh[ T/R AMPS* HI PR LO PR SCFM MBh[ T/R AMPS* HI PR LO PR Comfort Efficiency Maximum 65 500 11.91 23.15 6.15 303 47 450 11.90 25.69 6.29 315 47 402 11.86 28.66 6.46 328 47 70 7 848 26.97 25.11 0.74 0.77 5.90 5.97 253 252 147 137 825 27.14 25.14 0.73 0.76 5.98 6.01 258 255 146 136 11.97 23.47 5.83 282 47 See Legend on page 22. 63†† 708 26.51 24.55 0.70 0.73 5.82 5.
PAGE 17
428 01 5700 02 Specifications subject to change without notice. 17 31.02 0.54 5.15 254 163 31.08 0.54 5.14 255 163 SCFM MBh[ S/T] AMPS* HI PR LO PR SCFM MBh[ S/T] AMPS* HI PR LO PR 13.73 31.57 8.20 311 47 13.80 31.57 8.20 311 47 SCFM MBh[ T/R AMPS* HI PR LO PR SCFM MBh[ T/R AMPS* HI PR LO PR Comfort Efficiency Maximum See Legend on page 22. 13.63 31.57 8.20 311 47 SCFM MBh[ T/R AMPS* HI PR LO PR 65 30.15 0.52 5.
PAGE 18
Specifications subject to change without notice. 428 01 5700 02 43.56 0.52 10.65 288 155 42.98 0.52 10.34 277 156 SCFM MBh[ S/T] AMPS* HI PR LO PR SCFM MBh[ S/T] AMPS* HI PR LO PR 16.00 36.45 9.95 332 45 16.14 36.45 9.95 332 45 SCFM MBh[ T/R AMPS* HI PR LO PR SCFM MBh[ T/R AMPS* HI PR LO PR Comfort Efficiency See Legend on page 22. Maximum 16.04 36.45 9.95 332 45 SCFM MBh[ T/R AMPS* HI PR LO PR 65 26.01 1.00 16.
PAGE 19
428 01 5700 02 Specifications subject to change without notice. 19 42.44 0.52 7.11 246 161 42.04 0.53 6.89 240 162 SCFM MBh[ S/T] AMPS* HI PR LO PR SCFM MBh[ S/T] AMPS* HI PR LO PR 15.01 34.41 8.46 301 49 15.02 34.41 8.46 301 49 SCFM MBh[ T/R AMPS* HI PR LO PR SCFM MBh[ T/R AMPS* HI PR LO PR Comfort Efficiency Maximum See Legend on page 22. 15.03 34.41 8.46 301 49 SCFM MBh[ T/R AMPS* HI PR LO PR 65 42.08 0.52 6.
PAGE 20
Specifications subject to change without notice. 428 01 5700 02 58.04 0.50 8.48 335 130 59.24 0.51 5.80 256 161 58.86 0.52 5.80 259 154 SCFM MBh[ S/T] AMPS* HI PR LO PR SCFM MBh[ S/T] AMPS* HI PR LO PR 22.65 34.81 11.88 314 45 22.76 34.81 11.88 314 45 SCFM MBh[ T/R AMPS* HI PR LO PR SCFM MBh[ T/R AMPS* HI PR LO PR Comfort Efficiency 65 See Legend on page 22. 700 22.11 33.75 12.06 331 45 700 22.10 33.73 12.05 331 45 600 20.06 37.55 11.31 344 46 70 7 1440 53.89 50.24 0.70 0.72 5.90 5.
PAGE 21
428 01 5700 02 Specifications subject to change without notice. 21 70.04 0.50 19.28 280 148 73.38 0.51 18.35 281 150 73.15 0.51 18.53 276 152 SCFM MBh[ S/T] AMPS* HI PR LO PR SCFM MBh[ S/T] AMPS* HI PR LO PR 29.44 38.74 17.26 360 42 29.35 38.74 17.26 360 42 SCFM MBh[ T/R AMPS* HI PR LO PR SCFM MBh[ T/R AMPS* HI PR LO PR Comfort Efficiency Maximum 65 840 29.35 38.66 18.21 384 42 840 29.47 38.83 18.34 387 42 700 29.95 47.34 20.08 432 42 70 7 1680 66.99 62.46 0.69 0.71 17.91 17.
PAGE 22
Specifications subject to change without notice. 428 01 5700 02 † Total capacities are net (I.D blower heat added) system capacities based on 25' line set. If additional tubing length and/or indoor unit is located above outdoor unit, a slight variation in capacity may occur. * System amps are total of indoor and outdoor amps T/R - Temp Rise is based on 25' line set. If additional tubing length and/or indoor unit is located above outdoor unit, a slight variation in Temp Rise may occur.
PAGE 23
R- 410A QUICK REFERENCE GUIDE  Observe all WARNINGS, CAUTIONS, NOTES, and bold text.  R- 410A refrigerant operates at 50% - 70% higher pressures than R- 22. Be sure that servicing equipment and replacement components are designed to operate with R- 410A.  R- 410A refrigerant cylinders are rose colored.  Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.  R- 410A systems should be charged with liquid refrigerant.
PAGE 24
Copyright 2017 International Comfort Products Lewisburg, TN 37091 USA 428 01 5700 02 Specifications subject to change without notice.