Table of Contents
Advertisement
288BNV EVOLUTION
VARIABLE SPEED HEAT PUMP
WITH PURONr REFRIGERANT
NOTE: Read the entire instruction manual before starting the installation.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
R
V
Installation Instructions
TABLE OF CONTENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE NO.
2
2
3
3
3
3
4
4
4
4
8
8
8
10
11
16
17
18
23
23
23
Catalog No: II288B--- 03
Replaces: II288B--- 02
Advertisement
Table of Contents
Related Manuals for Bryant 288BNV EVOLUTION V
Summary of Contents for Bryant 288BNV EVOLUTION V
-
Page 1: Table Of Contents
288BNV EVOLUTION VARIABLE SPEED HEAT PUMP WITH PURONr REFRIGERANT Installation Instructions NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS PAGE NO. SAFETY CONSIDERATIONS .............. -
Page 2: Safety Considerations
Information in these installation instructions pertains only to Indoor Thermostat Control Options 288BNV series units. Evolutionr Connex™ Standard HP Model Control Thermostat SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, 288BNV Yes* Yes** or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property * Requires model SYSTXBBECC01, SYSTXBBECW01 or SYSTXBBECN01 damage. -
Page 3: Installation
INSTALLATION 8. Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tub- Specifications for this unit in residential new construction market ing (see Fig. 1). require the outdoor unit, indoor unit (including metering device), 9. -
Page 4: Step 4 - Operating Ambient
Table 1 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.) † LIQUID VAPOR UNIT SIZE Connection Tube Connection Max (Rated) Minimum Diameter Diameter Diameter Diameter Tube Diameter 288BNV024B* 288BNV024A*, 288BNV025 288BNV036 288BNV048 (1 ---1/8) 288BNV060 (1 ---1/8) * *24A unit height is 38--- 7/16”, 24B unit height is 31--- 5/8 { Units are rated with 25 ft. - Page 5 triple evacuation method may be used. See Service Manual for CAUTION triple evacuation method. Always break a vacuum with dry nitrogen prior to opening the refrigerant system for servicing. UNIT DAMAGE HAZARD Deep Vacuum Method Failure to follow this caution may result in unit damage or The deep vacuum method requires a vacuum pump capable of improper operation.
- Page 6 Route Ground and Power Wires General Information Remove access panel to gain access to unit wiring. Extend wires Use No. 18 AWG or larger color- -coded, insulated (35C from disconnect through power wiring hole provided and into unit minimum) wire for low voltage control wires. control box.
-
Page 7: Low Voltage Wiring
Thermidistat Fan Coil Heat Pump RVS Cooling O/B W2 J2 Jumper Heat Stage 3 W/W1 on Control Board Jumper Wire Heat/Cool Stage 1 Y1 / W2 Required for Single-Stage Heat/Cool Stage 2 Y/Y2 Y/Y2 24VAC Hot Heating 24VAC Hot Cooling J1 Jumper on Control Board Dry Contact 1... -
Page 8: Step 8 - Compressor Internal Crankcase Heater
Bryant units, can also be used on this line of To furnish power to heater only, set thermostat to OFF and close product. For models utilizing 23 inch x 23 inch base pans, it is electrical disconnect to outdoor unit. - Page 9 Follow these steps to properly start up the system: 1. After system is evacuated, close the disconnects to energize indoor unit, outdoor unit, and User Interface (UI). Do not attempt to operate the system in heating or cooling mode at this time.
-
Page 10: Step 11 - System Functions And Sequence Of Operation
Step 11 — System Functions and Sequence of Crankcase Heater Operation Operation This unit has an internal crankcase heater that will be energized during the off cycle and is intelligently demanded by the system to 288BNV models utilize either Evolution Connex prevent the compressor from being the coldest part of the system Communicating User Interface (UI) or conventional HP... -
Page 11: Step 12 - Check Charge
A14021 Fig. 15 - - AOC Control Board The control board accumulates compressor run time. As the accumulated run time approaches the selected defrost interval time, the control board monitors the coil temperature sensor for a defrost demand. If a defrost demand exists, a defrost cycle will be initiated at the end of the selected time interval. - Page 12 Table 3 – Required Charge Adjustment for Indoor Coil Model Outdoor Model Number Furnace or Fan Coil 288BNV024A Model Number 288BNV024B 288BNV036A 288BNV048A 288BNV060A 288BNV025A CNPV*18** CAP**18** CNP**24 CNPV*19** CAP**24 CSPH*24 CSPH*30** F(E,V)4(A,B,C)NF002 CAP**30 CNP**30 CNP**36 F(E,V)4(A,B,C)N(B,F)003 CAP**36 CNP**42 +.50 CAP**42 +.50 CSPH*36...
- Page 13 Fig. 21 - - Charging in Cooling Mode 288BNV036 Fig. 22 - - Charging in Cooling Mode 288BNV048 Fig. 23 - - Charging in Cooling Mode 288BNV060 Catalog No: II288B--- 03 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: II288B--- 02...
- Page 14 Heating Check Chart Procedure (See Fig. 24 - - 28) running in stage 5 with appropriate outdoor fan speed and indoor airflow. Upon completion of a countdown period for system (Communicating / Non- - communicating Systems) stabilization, check refrigerant pressures for the appropriate In heating mode, the required charging method is by weigh- -in.
- Page 15 Fig. 26 - - Heating Pressure Check Chart 288BNV036 Fig. 27 - - Heating Pressure Check Chart 288BNV048 Heating Check Chart - 060 Fig. 28 - - Heating Pressure Check Chart 288BNV060 Catalog No: II288B--- 03 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: II288B--- 02...
-
Page 16: Step 13 - Pumpdown & Evacuation
Step 13 — Pumpdown & Evacuation 4. The unit will continue to run until high or low pressure CAUTION switches open. Close vapor service valve once compressor shuts down. ENVIRONMENTAL HAZARD 5. Remove power from indoor and heat pump unit prior to servicing unit. -
Page 17: Major Components
MAJOR COMPONENTS Variable Speed Compressor This unit contains a variable speed rotary compressor that has a Variable speed Control Board wide operating range. It operates on a variable 3 phase sine wave provided by the inverter. This compressor can only be operated by the specific inverter supplied with the unit. -
Page 18: Troubleshooting
TROUBLESHOOTING connect the C and D wires from the service tool to the 24 VAC power supply as shown in Fig. 30. Systems Communication Failure When the service tool is connected and powered up, the If communication is lost with the User Interface (UI), the control communicating controls inside the home will ”go to sleep”... - Page 19 Failed Thermistor Default Operation Table 5 – 10K/50Kohm Resistance Values vs Temperature 10Kohm Factory defaults have been provided in the event of failure of _C (_F) outdoor air thermistor (OAT) and/or outdoor coil thermistor TEMPERATURE RESISTANCE (ohms) (OCT). 25.0 (77.0) 10.0 + / --- 2.3% 0.0 (32.0) 32.6 + / --- 3.2%...
- Page 20 Suction Thermistor (OST) Variable Speed Compressor Winding Resistance Suction Thermistor is used for assisting in EXV control and must This compressor operates with 3- -phase variable frequency PWM be secured on the suction tube and aligned longitudinally to the variable voltage. For troubleshooting certain fault codes related to vertical surface of the tube axis (see Fig.
-
Page 21: Status Codes
Status Codes EXAMPLE: 3 short flashes followed by 2 long flashes indicates a 32 code. Table 7 shows the status codes flashed by the amber status light. Table 7 shows this to be low pressure switch open. Most system problems can be diagnosed by reading the status code as flashed by the amber status light on the control board. - Page 22 Table 7 – Troubleshooting SERVICE FLASH RESET TIME AMBER LED DESCRIPTION CODE (Minimum) Minutes (Amber LED) Standby ON, no flash Variable Capacity 1, pause Mode Variable 1 (2 sec ON), Speed longer pause Range (1 second OFF) Cutback Communications Loss Invalid Model High Pressure Switch Open Low Pressure Trip...
-
Page 23: Final Checks
FINAL CHECKS CARE AND MAINTENANCE IMPORTANT: Before leaving job, be sure to do the For continuing high performance and to minimize possible equipment failure, periodic maintenance must be following: performed on this equipment. 1. Ensure that all wiring is routed away from tubing Frequency of maintenance may vary depending upon and sheet metal edges to prevent rub- -through or geographic areas, such as coastal applications. - Page 24 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Edition Date: 10/14 Catalog No. II288B--- 03 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Replaces: II288B--- 02...