Manual 2100-583G
Page 2 of 48
CONTENTS
Getting Other Informations and Publications......... 3
General Information
Water Source Nomenclature..................................... 4
Application and Location
General ................................................................. 7
Shipping Damage ..................................................... 7
Application ................................................................ 7
Location ................................................................. 7
Unit Stacking............................................................. 7
Additional Consideration ........................................... 7
Required Steps after Final Placement ...................... 7
ANSI Z535.5 Denitions............................................ 8
Power & Control Wiring
High Voltage Line Supply.......................................... 9
Low Voltage Control Wires........................................ 9
Control Wiring ......................................................... 11
Relocatable Control Panel...................................... 10
Wiring - Low Voltage
Dual Primary & Low Voltage Connections
............ 12
P
iping Access to Unit
Loop, Load & Desuperheater Connections............. 13
Load Side
Water Connections
Sizing Buffer Tanks for Zoned Systems .................. 14
Ground Loop (Earth
Coupled Water Loop App.)
Circulation System Design...................................... 16
Ground Water (
Well System App.)
Water Connections.................................................. 18
Well Pump Sizing............................................18 & 19
System Start Up Procedure for Ground Water App. ...
20
Water Corrosion...................................................... 20
Remedies of Water Problems ................................. 21
Lake & Pond Installations ....................................... 22
Desuperheater (Potable Hot Water Assist)
Description .............................................................. 23
Location ............................................................... 23
Electrical Connection .............................................. 23
Installation Procedure - General ............................. 23
Operation of Heat Recovery Unit ............................ 24
Start Up & Check Out ............................................. 24
Maintenance ........................................................... 24
Control Board Sequence of Operation.................... 28
Sequence of Operation
Part Load Cooling ................................................... 29
Full Load Cooling .................................................... 29
Part Load Heating ................................................... 29
Full Load Heating.................................................... 29
Geothermal Logic Control ....................................... 29
High & Low Pressure Switch................................... 30
Flow Switch............................................................. 30
Over/Under Voltage Protection ............................... 30
Intelligent Reset ...................................................... 30
Alarm Output........................................................... 30
Pressure Service Ports ........................................... 30
Checking Refrigerant Quantity................................ 30
Refrigerant Charge
General ............................................................... 31
R-410A & Topping Off System Charge ................... 31
Safety Practices ...................................................... 31
Troubleshooting
Table ............................................................... 45
Service
Hints, Unbrazing System Components & Compressor
Solenoid ............................................................... 46
Ground Source HP Perf. Report
& Checklist - Perform. Unit............................ 47 & 48
Figures
Figure 1 Unit Dimensions ....................................... 6
Figure 2 Wire Routing to Control Panel.................. 9
Figure 3 Changing Water Entrance Location ....... 10
Figure 4
Control Wiring (Control Panel & Conduits).. 11
Figure 5 Typical Load Side Hydronic System....... 15
Figure 6 Circulator System Design....................... 16
Figure 7A Circulation System Design ..................... 17
Figure 7B Model DORFC-1 Flow Center ................ 17
Figure 7C Model DORFC-2 Flow Center ................ 17
Figure 8 Water Connection Components ............. 19
Figure 9 Water Coil Cleaning ............................... 21
Figure 10 Desuperheater Wiring Diagram.............. 25
Figure 11 One-Tank Desuperheater System.......... 26
Figure 12 Two-Tank Desuperheater System .......... 27
Figure 13 Inlet & Outlet Thermistor Temp Curves .. 28
Figure 14 System Component Locations ............... 32
Figure 15 Electrical Control Locations.................... 32
Figure 16 Cooling Cycle Diagram .......................... 33
Figure 17 Heating Cycle Diagram .......................... 34
Figures 18-22 Pressure Tables ...........................35-44
Tables
Table 1 Rated Flow Rates for Various Fluids........ 4
Table 2 Electrical Specications ........................... 5
Table 3 Source Side Water Coil Pressure Drops ... 5
Table 4 Operating Voltage Range....................... 12
Table
Low Voltage Connections for DDC Controls
. 12
