Bard I36H1D, I42H1D, I60H1D, I48H1D, I30H1D installation instructions Contents

CONTENTS

Getting Other Information and Publications
For more information, contact these publishers:				3
General & ANSI Z535.5 Definitions				4
I-TEC General Information
I-TEC Model Nomenclature				5
Shipping Damage, Unit Removal From Skid				8
Handling Unit After Removal From Skid				8
Required Steps after Final Placement				9
Minimum Installation Height				9
Securing Unit to Structure & Seismic Considerations ..				9
Duct Work, Supply Duct Connections & Filters				17
Condensate Drain				18
With No Vent Option and With CRV & ERV				18
Installation Instructions
Mounting the Unit & Wiring — Main Wiring				21
Wiring—Low Volt. Wiring & Low Volt.Connections ....				22
Start Ups
R-410A Refrigerant Required				30
Topping Off System Charge				30
Safety Practices				30
Description of Standard Equipment				31
Important Installer Note				31
Phase Monitor				31
Three Phase Scroll Compressor				31
Figures
Figure 1		Unit Dimensions		7
Figure 2A & 2B Unit on Lift & Unit Side				8
Wall Mounting Bracket Location				9
Bracket Wall Sect. View & Wood Framed Install				10
Figure 3		Center of Gravity		11
Figure 4		Req. Clearances & Rec. Access		12
Figure 5		Compressor Shipping Bolts		13
Figure 6		Removal of Air Duct		13
Figure 7A		Ducted Application		14
Figure 7B		3" Riser Application		15
Figure 7C		6" Riser Application		16
Figure 8		Supply Duct Connections		17
Figure 9		Filter Location		17
Figure 10		Drain Locations		18
Figures 11A & 11B Unit Mounting			19 & 20
Figure 12		Component Location		21
Figure 13		Basic Heat Pump w/No Vent Pkg		23
Figure 14		HP w/CRV, without CO2 Control		24
Figure 15		HP with CRV & CO2 Control		25
Figure 16		HP with ERV, w/o CO2	Control	26
Figure 17		HP with ERV & CO2 Control		27
Figure 18		HP w/ERV & CO2 Control (Fully Mod.)		28
Figure 19		HP w/Comb. CRV & DB Econ. ("N" Vent) ....		29
Figure 20		Defrost Cycle		33
Figure 21		CRV Motor Speed/CFM Configuration		35
Figure 22		CRV Speed Change Terminal Access		36
Figure 23		Economizer Control Circuit		38
Figure 24		Motor Speed / CFM Configuration		39
Fig. 25A		ERV Manual Mode "M" Terminal		43
Fig. 25B		ERV Mod. Mode "P" Terminal		43
Figure 26		Ventilation Airflow Diagram		44
Figure 27		ERV Control Access		45
Figure 28		Control Board Config./Setting		46
Manual	2100-549G
Page	2 of 59

Service Hints			31
Sequence of Operation			32
Pressure Service Ports			32
Lowering Outdoor Fan Speed for Sound			32
Defrost Cycle			33
I-TEC Commercial Room Ventilator System
Gen. Description, Control Wiring & Rec. Seq			34
Setting the Ventilation CFM Levels			34
I-TEC Comb. CRV & Economizer Vent System
Description & Control Wiring			37
Setting the Ventilation CFM Levels			37
Economizer Seq. of Operation			38
Heating & Vent Mode			39
I-TEC Energy Recovery Ventilator System
General Description & Control Wiring			40
Recommended Control Sequences			41
Changing Ventilation CFM Rates in Manual Mode ....			41
Changing to Fully Modulating Mode			41
Configuring Control for ERV Mod. Control		47-48
Maintenance (Gen., Frequency, Clean & Perform.)		49-50
Troubleshooting
Solid State HP Control Troubleshooting Procedure ...			51
Checking Temperature Sensor			52
Troubleshooting ECM™ 142R Motor		43 & 54
Replacing the Motor			54
Troubleshooting Indoor ECM™ Motor		55-56
Fan Blade Setting Dimensions			57
Refrigerant Charge			57
Figures (continued)
Figure 29 Hub Assembly w/Ball Bearings			50
Figure 30	Control Disassembly		56
Figure 31	Winding Test		56
Figure 32	Drip Loop		56
Figure 33 Control Connector Motor Half			57
Tables
Table 1 Factory Built-In Electric Heat Table			5
Table 1A Indoor Blower Performance			5
Table 2	Elec. Specifications		6
Center of Gravity Reference Table			11
Table 3 Operating Voltage Range			22
Table 4	Wall Thermostats		22
Low Voltage Connections for DDC Control			22
Performance & App. Data:
	Summer Cooling & Winter Heating		42
Table 5	Troubleshooting		51
Table 6 Temp. vs Resistance of Temp. Sensor		.......	52
Table 7 Troubleshooting ECM™ 142R			54
Table 8	Cooling Mode		54
Table 9 Heat Pump Mode			54
Troubleshooting ECM™ Blower Motors			57
Power Connector			57
Table 10A Pressures: Full Load Cooling			58
Table 10B Pressures: Full Load Heating			58
Table 11A Pressures: Part Load Cooling			59
Table 11B Pressures: Part Load Heating			59