Table Of Contents - Econar GeoSurce Vara 2 Plus GV Series Lnstallation And Operating Lnstructions

TABLE
OF CONTENTS
Title
Page
L
Introduction
to
ECONAR
Heat Pumps
. . .
.
)
)
I
GeoSource
Yara
2
Plust'
Features.
A.
Two-Step Compressor Operation
B.
Variable
Speed
ECM Blower
C.
Intelligent Elecftic
Resistance Elements
D.
R-410a Refrigerant
III.
UnitLocation/Mounting
IV.
Condensate
Drain
V.
Duct
System,/Blower
VL
Earth
Loop Water Piping
A.
Closed Loop Applications
B.
Open
Loop Applications
l)
Open Loop
Freeze Protection
Switch
2)
Water Coil
Maintenance
VIL
Unit
Sizing
A.
Earttr Loop Configuration
and
Design Water Temperatures
1)
Closed
Loop
Systems
2)
Open
l,oop
Systems
B.
Building
Heat LosslFleat Gain
VlI.
ElectricalService
24Yolt Control Circuit
A.
Transformer
B.
Thermostat
l)
Wiring
D
Lights
C.
Controller
1)
ECM Blower
Operation
and Speed Control
2)
Earth Loop Pump
Initiation
3)
Compressor Operation for
1't Stage Heat/Cool
4)
Compressor Operation
for
2od
Stage Heat/Cool
5)
Electric
Element Operation
6)
4-Way Valve Control
7)
Compressor Lockouts
8)
CompressorAnti-Short-Cycle
9)
System Diagnostics
Startup
....
Service
A.
AirFilter
B.
Lockout Lights
C.
Preseasonlnspection
3
4
4
5
rx.
8
9
9
13
l4
15
t7
19
x.
xr.
xII.
xm.
xrv.
xv.
xvI.
11
12
Thermostat Operation
Troubleshooting
Guide
for Lockout
Conditions
Troubleshooting Guide for Unit Operation
. .
.
Additional
Figures
Desuperheater (Optional)
I