Hoffman G28 Handleiding

Hoffman Heater G28

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Pagina 1/40

Rev. C

P/N 89116684

SPECTRACOOL

Air Conditioner

G28 Model

INSTRUCTION MANUAL

89116684

- 2 -

TABLE OF CONTENTS

RECEIVING THE AIR CONDITIONER ............................................................................................................................................................................... 3

HANDLING AND TESTING THE AIR CONDITIONER ......................................................................................................................................................3

HOW TO READ MODEL NUMBERS ................................................................................................................................................................................. 3

TECHNICAL INFORMATION ............................................................................................................................................................................................4

Sequence of Operation ..........................................................................................................................................................................................................................4

Heating..........................................................................................................................................................................................................................................4

Cooling .......................................................................................................................................................................................................................................... 4

Standard and Optional Component Operation .....................................................................................................................................................................................4

Thermostat ...................................................................................................................................................................................................................................4

Remote Access Control (optional) ...............................................................................................................................................................................................4

Head Pressure Control (optional) ................................................................................................................................................................................................ 4

Contactor (460V Units only) ..........................................................................................................................................................................................................4

Overload (460V Units only) ...........................................................................................................................................................................................................4

Phase Monitor ..............................................................................................................................................................................................................................5

460V to 230V Transformer ............................................................................................................................................................................................................5

115V/230V to 10V Transformer (optional) ....................................................................................................................................................................................5

115V/230V to 24V Transformer and Relay (optional) ...................................................................................................................................................................5

Schematics and Wiring Diagrams for Thermostat Control .................................................................................................................................................................5

4000 BTU 1-Phase Schematic (actual unit options may vary) .................................................................................................................................................... 5

6000 BTU 1-Phase Schematic (actual unit options may vary) .................................................................................................................................................... 6

G28 Generic 3-Phase Schematic (actual unit options may vary) ...............................................................................................................................................6

4000 BTU 1-Phase Wire Diagram (actual unit options may vary) ..............................................................................................................................................7

6000 BTU 1-Phase Wire Diagram (actual unit options may vary) ..............................................................................................................................................8

G28 Generic 3-Phase Wire Diagram (actual unit options may vary) .......................................................................................................................................... 9

DIMENSIONAL DRAWINGS ........................................................................................................................................................................................... 10

4000 BTU 115V With Thermostats ......................................................................................................................................................................................................10

6000 and 4000 BTU 230V With Thermostats ......................................................................................................................................................................................11

G28 Generic 460V With Thermostats ..................................................................................................................................................................................................11

INSTALLATION INSTRUCTIONS....................................................................................................................................................................................12

REMOTE ACCESS CONTROL (optional) ........................................................................................................................................................................13

INTRODUCTION ...................................................................................................................................................................................................................................13

ENERGIZING THE CONTROLLER........................................................................................................................................................................................................13

CONTROL STATUS INDICATION .......................................................................................................................................................................................................... 13

DISPLAYING AND CHANGING PROGRAM VARIABLES ...................................................................................................................................................................... 14

OPERATING PARAMETERS ................................................................................................................................................................................................................. 14

ALARM PARAMETERS .........................................................................................................................................................................................................................14

DISPLAYING TEMPERATURE SENSOR #2 .........................................................................................................................................................................................14

COMPRESSOR RESTART TIME DELAY ...............................................................................................................................................................................................14

ALARM OUTPUT CONTACT .................................................................................................................................................................................................................14

ALARM INPUT CONNECTION .............................................................................................................................................................................................................15

ALARM CONDITION DISPLAY..............................................................................................................................................................................................................15

AIR CONDITIONER UNIT COMMUNICATION FEATURES ................................................................................................................................................................... 15

USB COMMUNICATION .............................................................................................................................................................................................................. 15

ETHERNET COMMUNICATION ..................................................................................................................................................................................................15

USING THE PC INTERFACE TOOL .......................................................................................................................................................................................................16

USB COMMUNICATION MODE ...................................................................................................................................................................................................16

ETHERNET COMMUNICATION MODE .......................................................................................................................................................................................17

Remote Access Control Pin-out ...................................................................................................................................................................................18

Schematics and Wiring Diagrams for Remote Access Control .........................................................................................................................................................19

4000 BTU 1-Phase Wire Diagram for Remote Access Control (actual unit options may vary) ............................................................................................... 21

6000 BTU 1-Phase Wire Diagram for Remote Access Control (actual unit options may vary) ............................................................................................... 22

G28 Generic 3-Phase Wire Diagram for Remote Access Control (actual unit options may vary) ...........................................................................................23

4000 BTU 115V With Remote Access Control ..................................................................................................................................................................................... 24

4000 and 6000 BTU 230V With Remote Access Control .....................................................................................................................................................................24

INSTALLATION INSTRUCTIONS WITH REMOTE ACCESS CONTROL ..........................................................................................................................25

MAINTENANCE .............................................................................................................................................................................................................26

Compressor .........................................................................................................................................................................................................................................26

Inlet Air Filter .......................................................................................................................................................................................................................................26

How To Remove, Clean or Install a New Inlet Air Filter ..................................................................................................................................................................... 26

Condenser and Evaporator Air Movers ..............................................................................................................................................................................................27

Refrigerant Loss .................................................................................................................................................................................................................................. 27

Refrigerant Properties Chart (R 407c) ................................................................................................................................................................................................ 28

Refrigerant Properties Chart (R 134a) ................................................................................................................................................................................................28

Functional Data....................................................................................................................................................................................................................................29

4000/6000 BTU Unit Characteristics ...................................................................................................................................................................................................30

SERVICE DATA ...............................................................................................................................................................................................................31

Components List .................................................................................................................................................................................................................................31

TROUBLE SHOOTING .................................................................................................................................................................................................... 32

Basic Air Conditioning Trouble Shooting Check List - Thermostat Version .....................................................................................................................................32

Symptoms and Possible Causes - Thermostat Version .....................................................................................................................................................................33

Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version ..................................................................................................................34

Symptoms and Possible Causes - Remote Access Control Version .................................................................................................................................................36

WARRANTY .................................................................................................................................................................................................................... 38

RETURN AND REPAIR POLICY ...........................................................................................................................................................................................................38

LIMITATION OF LIABILITY ...................................................................................................................................................................................................................39

Product specificaties

Merk:	Hoffman
Categorie:	Heater
Model:	G28
Soort bediening:	Knoppen
Kleur van het product:	Grijs
Gewicht:	38101 g
Breedte:	431 mm
Diepte:	256.5 mm
Hoogte:	725 mm
Soort:	Ventilator elektrisch verwarmingstoestel
Gebruikershandleiding:	Ja
Materiaal behuizing:	Kunststof
Internationale veiligheidscode (IP):	IP56
Aan/uitschakelaar:	Ja
Temperatuur (min):	-8 °C
Geschikt voor:	Binnen
Instelbare thermostaat:	Ja
Temperatuur (max):	55 °C
Draagbaar:	Ja
AC-ingangsspanning:	100-120 V
Verwarmingsvermogen:	1874 W
Plaatsingsopties:	Vloer
Verwarming power (min):	- W
Maximumcapaciteit:	6400 BTU/h