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Econar GeoSource Vara GV Series User Manual

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Installation
and
Operating
Instructions
Vertical and
Horizontal Forced
Air
GV/GH
36
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67 Series
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Econar GeoSource Vara GV Series Specifications

General IconGeneral
BrandEconar
ModelGeoSource Vara GV Series
CategoryHeat Pump
LanguageEnglish

Summary

I. INTRODUCTION TO ECONAR HEAT PUMPS

II. UNIT LOCATION AND MOUNTING

II. DUCT SYSTEM/BLOWER

III. CONDENSATE DRAIN

IV. EARTH LOOP WATER PIPING

A. Closed Loop Applications

Details on closed loop systems, pipe types, and sizing.

B. Open Loop Applications

Information on open loop systems, well requirements, and components.

1. Open Loop Freeze Protection Switch

Explains the function and installation of the freeze protection switch.

2. Water Coil Maintenance

a. Freeze Cleaning

Step-by-step guide for cleaning scale and particle buildup.

b. Chlorine Cleaning

Method for cleaning bacterial growth using chlorine bleach.

VI. UNIT SIZING

A. Loop Configuration and Design Water Temperatures

How loop configuration affects water temperatures and unit capacity.

1. Closed Loop Systems

Details on closed loop system design, EWT, and capacity selection.

2. Open Loop Systems

Discusses well water temperature effects on unit capacity.

B. Building Heat Loss/Heat Gain

Importance of accurate load estimation for HVAC installation.

VII. ELECTRICAL SERVICE

VIII. 24 VOLT CONTROL CIRCUIT

A. Transformer

Information on the internal 24-volt transformer and its usage.

B. Thermostat

Requirements and basic operation of the recommended thermostat.

C. Controller

Functions of the unit's controller in managing operations.

1. Blower Operation and Speed Control

How the controller manages blower speed based on thermostat calls.

2. Earth Loop Pump Initiation

How the earth loop pump is activated by the controller.

3. Compressor Operation

How the controller manages compressor startup and operation.

4. 4-Way Valve Control

How the controller operates the 4-way reversing valve for cooling.

5. Compressor Lockouts

Causes and indications of compressor lockouts.

6. Compressor Anti-Short-Cycle

Delay periods to protect the compressor from short cycling.

7. System Diagnostics

Explanation of diagnostic LED lights on the controller.

8. Overflow Detection

Function of the optional overflow detection sensor.

IX. STARTUP

X. SERVICE

A. Filter

Instructions for cleaning and maintaining the air filter.

B. Lockout Lights

Interpreting lockout lights on the thermostat and troubleshooting.

C. Preseason Inspection

Steps for inspecting and cleaning components before each season.

XI. THERMOSTAT OPERATION

XII. TROUBLESHOOTING GUIDE FOR LOCKOUT CONDITIONS

XIII. TROUBLESHOOTING GUIDE FOR UNIT OPERATION

XIV. ADDITIONAL FIGURES

XV. DESUPERHEATER (OPTIONAL)

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