Heat Controller HBH015, HBH018, HBH024, HBH030, HBH036 Installation, Operation & Maintenance Manual

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Installation, Operation

& Mainenance Manual

Commercial Horizontal & Vertical

Packaged Water-Source Heat Pumps:

HBH/V Compact

Heat Controller, Inc. • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

TABLE OF CONTENTS

Model Nomenclature ..................................................2

Electrical - Power & Low Voltage Wiring .............22-24

General Information .................................................3-4

Physical Data..............................................................5

Horizontal Installation ...........................................6-7,9

Field Conversion of Air Discharge ..............................8

Vertical Installation...............................................10-11

Piping Installation .....................................................12

Water Loop Applications ...........................................13

Open Loop - Ground Water Systems ..................14-17

Water Quality Standards ..........................................18

Electrical - Line Voltage ............................................19

Electrical Data .....................................................20-21

Electrical - Thermostat Wiring ..................................25

CXM Controls ...........................................................26

CXM Control - Safety Features ...........................27-28

Unit Starting & Operating Conditions........................29

Piping System Cleaning & Flushing .........................30

Unit & System Checkout...........................................31

Unit Start-Up Procedure ......................................32-33

Unit Operating Procedures & Temperatures ........34-37

Preventive Maintenance ...........................................38

Functional Troubleshooting .................................39-42

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

HEAT CONTROLLER OEM PRICE LIST

HBH & HBV COMPACT Horizontal & Vertical HFC-410a Units

H B H A0 3 6 C3 3 0 A L B

1 2 3 4 5 6 7

9 10 11 12 13 14

HB = HEAT CONTROLLER COMPACT 410A

MODEL TyPE

H = HORIZONTAL (NON PAINTED)

CONFIGURATION

V = VERTICAL (PAINTED POLAR ICE)

UNIT SIZE

018 - 1,8 024 - 1,3,4,8 030 - 1,3,4,8 036 - 1,3,4,8 042 - 1,3,4,5 048 - 1,3,4,5 060 - 1,3,4,5

REVISION LEVEL

A = CURRENT REVISION FOR SIZES 006 - 060

VOLTAGE

C = CXM

CONTROLS

3 = STANDARD RANGE

CABINET INSULATION

0 = NONE

FUTURE USE

A = Copper Water Coil w/E-Coated Air Coil

HEAT EXCHANGER OPTIONS

C = Copper Water Coil w/Non-Coated Air Coil

L = LEFT RETURN

RETURN AIR OPTIONS

R = RIGHT RETURN F = FRONT RETURN, VERTICAL 009-030

B = BACK DISCHARGE, HORIZONTAL ONLY

SUPPLy AIR OPTIONS

Y = BACK DISCHARGE, HIGH STATIC HORIZONTAL 018 - 060 T = TOP DISCHARGE, VERTICAL ONLY V = TOP DISCHARGE, HIGH STATIC VERTICAL 018 - 060 S = STRAIGHT DISCHARGE, HORIZONTAL ONLY Z = STRAIGHT DISCHARGE, HIGH STATIC HORIZONTAL 018 - 060

J = Cupro-Nickel Water Coil w/E-Coated Air Coil N = Cupro-Nickel Water Coil w/Non-Coated Air Coil

4 = STANDARD RANGE, WITH ULTRA QUIET

015 - 1,8

1 = 208-230/60/1 8 = 265/60/1 3 = 208-230/60/3 4 = 460/60/3 5 = 575/60/3

C = STANDARD RANGE, COOLING ONLY, VERTICAL UNITS

3 = DISCHARGE PRESSURE WATER REGULATING VALVE (COOLING ONLY) NOT AVAILABLE ON UNIT SIZES 006, 009 AND 012

V = LEFT RETURN, S.S DRAIN PAN W = RIGHT RETURN, S.S DRAIN PAN Z = FRONT RETURN, S.S. DRAIN PAN 009-030

}

Voltage Code

Entering Water Temperature Range: 20 - 120°F (-6.7 - 48.9°C)

Horizontal Water Source Heat Pump Sizes 015-060

006-060

Vertical Water Source Heat Pump Sizes 015-060

006-060

HBH & HBV Model Structure

Basic Unit Description:

The basic unit price includes sealed heat pump refrigerant circuit and air handler within cabinetry,  lter, and a factory installed hanger kit on horizontal units.

• Cabinetry - Compact design - galvanized steel construction -

• Cabinetry – Compact design - galvanized steel construction - controls

powder coat  nish on front access panels - controls access panel

access panel - compressor access panels - FPT water connections -

- com pres sor access panels - FPT water con nec tions - high and low

high and low voltage knockouts - 1” (25mm), air lter and lter rack. All

voltage knock outs - 1” (25mm), air  lter and  lter rack. All vertical

vertical units have a left or right return air option, sizes 006-030 have a

units have a left or right return air option, sizes 015 - 030 have a front

front return option. All horizontal units have eld convertible discharge air

return option. All hor i zon tal units have  eld convertible dis charge air

patterns with extra parts required.

patterns with no extra parts required.

• Standard Controls - CXM Controller, loss of charge switch, high

pressure switch, water coil low temperature cutout, lockout safety circuit resetable at ther mo stat or dis con nect, LED fault indication,  ve minute anti-short cycle protection, random start, high and low voltage pro tec tion, con den sate over ow pro tec tion, dry contact for alarm.

• Compressor - High ef ciency hermetic scroll or rotary, overload

pro tect ed - internally sprung & externally isolated using dual vibration dampening system for extra quiet operation. Mounting system incorporates rubber grommet isolation under the compressor and rubber grommet isolation between the compressor mounting tray and unit base.

006

• Reversing Valve - 4-way, pilot operated, solenoid activated in the

cool mode.

• Refrigerant Circuit - Utilizes expansion valve metering device -

copper tubing interconnecting all components - sealed & tested non-ozone depleting, HFC-410A refrigerant circuit with high & low side schraeder ports.

• Water to Refrigerant Coil - Tube-in-tube, convoluted copper inner

water tube.

• Refrigerant to Air Coil - Lanced aluminum  ns on ri ed copper

tubes.

• Blower Motor - Three-speed PSC direct drive, permanently

lu bri cat ed (Two-speed on 575 volt applications).

• UltraQuiet Option - Compressor incorporates spring mounting

system, 015-060 include compressor discharge muf er, blower housing is covered with high density noise suppression material.

• Application - Units can be applied in WLHP, GWHP, or GLHP

R-410A refrigerant circuit with high & low

applications.

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

General Information

Safety

Warnings, cautions and notices appear throughout this manual. Read these items carefully before attempting any installation, service or troubleshooting of the equipment.

DANGER: Indicates an immediate hazardous situation, which if not avoided will result in death or serious injury. DANGER labels on unit access panels must be observed.

WARNING: Indicates a potentially hazardous situation, which if not avoided could result in death or serious injury.

WARNING! All refrigerant discharged from this unit must be recovered WITHOUT EXCEPTION. Technicians must follow industry accepted guidelines and all local, state, and federal statutes for the recovery and disposal of refrigerants. If a compressor is removed from this unit, refrigerant circuit oil will remain in the compressor. To avoid leakage of compressor oil, refrigerant lines of the compressor must be sealed after it is removed.

WARNING!

CAUTION: Indicates a potentially hazardous situation or an unsafe practice, which if not avoided could result in minor or moderate injury or product or property damage.

NOTICE: Notication of installation, operation or maintenance

information, which is important, but which is not hazard-related.

WARNING!

WARNING! The Refrigerant Application and Service Manual

should be read and understood before attempting to service refrigerant circuits with HFC-410A.

R-410A.

WARNING!

WARNING! To avoid the release of refrigerant into the

atmosphere, the refrigerant circuit of this unit must be serviced only by technicians who meet local, state, and

federal prociency requirements.

CAUTION!

these units as a source of heating or cooling during the construction process. The mechanical components and

lters will quickly become clogged with construction dirt and

debris, which may cause system damage.

To avoid equipment damage, DO NOT use

Inspection

Upon receipt of the equipment, carefully check the shipment against the bill of lading. Make sure all units have been received. Inspect the packaging of each unit, and inspect each unit for damage. Insure that the carrier makes proper notation of any shortages or damage on all copies of the freight bill and completes a common carrier inspection report. Concealed damage not discovered during unloading must be reported to the carrier within

15 days of receipt of shipment. If not led within 15 days, the

freight company can deny the claim without recourse. Note: It is

the responsibility of the purchaser to le all necessary claims with

the carrier. Notify your equipment supplier of all damage within

fteen (15) days of shipment.

Storage

Equipment should be stored in its original packaging in a clean, dry area. Store units in an upright position at all times. Stack units a maximum of 3 units high.

Unit Protection

Cover units on the job site with either the original packaging or an equivalent protective covering. Cap the open ends of pipes stored on the job site. In areas where painting, plastering, and/or spraying has not been completed, all due precautions must be taken to avoid physical damage to the units and contamination by foreign material. Physical damage and contamination may prevent proper start-up and may result in costly equipment clean-up.

Examine all pipes, ttings, and valves before installing any of

the system components. Remove any dirt or debris found in or on these components.

Pre-Installation

Installation, Operation, and Maintenance instructions are provided with each unit. Horizontal equipment is designed for installation above false ceiling or in a ceiling plenum. Other

unit congurations are typically installed in a mechanical room.

The installation site chosen should include adequate service clearance around the unit. Before unit start-up, read all manuals and become familiar with the unit and its operation. Thoroughly check the system before operation.

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

General Information

Prepare units for installation as follows:

1. Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the correct unit has been shipped.

2. Keep the cabinet covered with the original packaging until installation is complete and all plastering, painting, etc. is

nished.

3. Verify refrigerant tubing is free of kinks or dents and that it does not touch other unit components.

4. Inspect all electrical connections. Connections must be clean and tight at the terminals.

5. Remove any blower support packaging (water-to-air units only).

6. Loosen compressor bolts on units equipped with compressor spring vibration isolation until the compressor rides freely on the springs. Remove shipping restraints.

Some airow patterns are eld convertible (horizontal units only). Locate the airow conversion section of this IOM.

8. Locate and verify any hot water generator (HWG), hanger, or other accessory kit located in the compressor section or blower section.

CAUTION!

direction of rotation veried at start-up. Verication is achieved by

checking compressor Amp draw. Amp draw will be substantially lower compared to nameplate values. Additionally, reverse rotation results in an elevated sound level compared to correct rotation. Reverse rotation will result in compressor internal overload trip within several minutes. Verify compressor type before proceeding.

All three phase scroll compressors must have

CAUTION!

CAUTION! DO NOT store or install units in corrosive

environments or in locations subject to temperature or humidity extremes (e.g., attics, garages, rooftops, etc.). Corrosive conditions and high temperature or humidity can

signicantly reduce performance, reliability, and service life.

Always move and store units in an upright position. Tilting units on their sides may cause equipment damage.

CAUTION!

CAUTION! CUT HAZARD - Failure to follow this caution

may result in personal injury. Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts and servicing heat pumps.

NOTICE! Failure to remove shipping brackets from springmounted compressors will cause excessive noise, and could cause component failure due to added vibration.

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Unit Physical Data

HBH/V Series

HB Series

Compressor (1 Each) Rotary Scroll Factory Charge R410A (oz) 17 18.5 23 32 43 43 47 50 70 74 82

PSC Fan Motor & Blower

Fan Motor Type/Speeds PSC/3 PSC/3 PSC-3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 Fan Motor (hp) 1/25 1/10 1/10 1/6 1/6 1/4 3/4 1/2 3/4 3/4 1 Blower Wheel Size (Dia x w) 5x5 5x5 6x5 8x7 8x7 9x7 9x7 9x8 9x8 10x10 11x10

Water Connection Size

IPT 1/2” 1/2” 1/2” 1/2" 1/2" 3/4" 3/4" 3/4" 3/4" 1" 1"

Vertical

Air Coil Dimensions (H x W) 10x15 10x15 10x15 20x17.25 20x17.25 20x17.25 20x17.25 24x21.75 24x21.76 24x28.25 24x28.25 Filter Standard - 1" Throwaway 10x18 10x18 10x18 20x20 20x20 20x20 20x20 24x24 24x24 1-14x24, 1-18x24 1-14x24, 1-18x24 Weight - Operating (lbs.) 103 105 114 153 158 189 197 203 218 263 278 Weight - Packaged (lbs.) 113 115 124 158 163 194 202 209 224 270

Horizontal

Air Coil Dimensions (H x W) 10x15 10x15 10x15 16x22 16x22 16x22 16x22 20x25 20x25 20x35 20x35 Filter Standard - 1" Throwaway 10x18 10x18 10x18 16x25 16x25 18x25 Weight - Operating (lbs.) 103 105 114 153 158 174 182 203 218 263 278 Weight - Packaged (lbs.) 113 115 124 158 163 179 187 209 224 270 285

Notes:

Models 006-012 have spring compressor mounts, all others have grommets,TXV expansion device, and 1/2” & 3/4” electrical knockouts.

006 009 012 015 018 024 030 036 042 048 060

285

18x25 20x28 or 2-20x14 20x28 or 2-20x14

1-20x24, 1-20x14

Unit Maximum Water Working Pressure

Options

Base Unit Discharge Pressure

Water Regulating Valve

Use the lowest maximum pressure rating when multiple options are combined.

Max Pressure PSIG [kPa]

500 [3,445]

140 [965]

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Horizontal Installation

Horizontal Unit Location

Units are not designed for outdoor installation. Locate the unit in an INDOOR area that allows enough space for service personnel to perform typical maintenance or repairs without removing unit from the ceiling. Horizontal units are typically installed above a false ceiling or in a ceiling plenum. Never install units in areas subject to freezing or where humidity levels could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air). Consideration should be given to

access for easy removal of the lter and access panels. Provide sufcient room to make water, electrical, and

duct connection(s).

If the unit is located in a conned space, such as a closet,

provisions must be made for return air to freely enter the space by means of a louvered door, etc. Any access panel

screws that would be difcult to remove after the unit is

installed should be removed prior to setting the unit. Refer to Figure 3 for an illustration of a typical installation. Refer to unit engineering design guide for dimensional data.

Mounting Horizontal Units

Horizontal units have hanger kits pre-installed from the factory as shown in Figure 1. Figure 3 shows a typical horizontal unit installation.

Horizontal heat pumps are typically suspended above a ceiling

or within a soft using eld supplied, threaded rods sized to

support the weight of the unit.

Use four (4) eld supplied threaded rods and factory provided

vibration isolators to suspend the unit. Hang the unit clear of the

oor slab above and support the unit by the mounting bracket assemblies only. DO NOT attach the unit ush with the oor

slab above. Pitch the unit toward the drain as shown in Figure 2 to improve

the condensate drainage. On small units (less than 2.5 tons/8.8kW) ensure that unit pitch does not cause condensate leaks inside the cabinet.

In limited side access installations, pre-removal of the control box side mounting screws will allow control box removal for future servicing (HB units only).

Conform to the following guidelines when selecting unit location:

1. Provide a hinged access door in concealed-spline or plaster ceilings. Provide removable ceiling tiles in T-bar or lay-in ceilings. Refer to horizontal

unit dimensions for specic series and model in

unit submittal data. Size the access opening to accommodate the service technician during the removal or replacement of the compressor and the removal or installation of the unit itself.

Provide access to hanger brackets, water valves

and ttings. Provide screwdriver clearance to access

panels, discharge collars and all electrical connections.

3. DO NOT obstruct the space beneath the unit with piping, electrical cables and other items that prohibit future removal of components or the unit itself.

4. Use a manual portable jack/lift to lift and support the weight of the unit during installation and servicing.

The installation of water source heat pump units and all associated components, parts and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes. It is the responsibility of the installing contractor to determine and comply with ALL applicable codes and regulations.

Figure 1: Hanger Bracket

3/8" [10mm] Threaded

Rod (by others)

Vibration Isolator

(factory supplied)

Washer

(by others)

Double Hex Nuts

(by others)

Figure 2: Horizontal Unit Pitch

1/4" [6.4mm] pitch for drainage

Drain

Connection

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

HORIZONTAL INSTALLATION

Figure 3: Typical Horizontal Unit Installation

Horizontal Installation

Figure 3: Typical Horizontal Unit Installation

3/8" [10mm] threaded rods

(by others)

Return Air

Power Wiring

Supply Air

Unit Power

Insulated supply duct with at least one 90 deg elbow to reduce air noise

Flexible Duct

Connector

Unit Power Disconnect

(by others)

Unit Hanger

Air Coil

To obtain maximum performance, the air coil should be cleaned before start-up. A 10% solution of dishwasher detergent and water is recommended for both sides of the coil. A thorough water rinse should follow. UV based anti-bacterial systems

may damage e-coated air coils.

Thermostat

Wiring

Stainless steel braided hoses with

Stainless steel braid hose

threaded connections

with integral "J" swivel

and one swivel end

Optional Balancing Valve

Optional Low Pressure Drop Water

Ball Valve with optional

integral P/T plug

Control Valve

(can be internally mounted

on some models)

Water Out

Water In

Building

Loop

NOTICE! Installation Note - Ducted Return: Many horizontal WSHPs are installed in a return air ceiling plenum application (above ceiling). Vertical WSHPs are commonly installed in a mechanical room with free return (e.g. louvered door). Therefore,

lter rails are the industry standard and are included on Heat

Controller, Inc., commercial heat pumps for the purposes of

holding the lter only. For ducted return applications, the lter rail must be removed and replaced with a duct ange or lter rack. Canvas or exible connectors should also be used to minimize

vibration between the unit and ductwork.

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Water

Connection End

Return Air

Remove Screws

Water

Connection End

Return Air

Rotate

Move to Side

Side Discharge

Return Air

Water

Connection End

Discharge Air

Drain

Back Discharge

Replace Screws

Field Conversion of Air Discharge

Overview

Horizontal units can be eld converted between side (straight)

and back (end) discharge using the instructions below.

Note: It is not possible to eld convert return air between

left or right return models due to the necessity of refrigeration copper piping changes.

Preparation

It is best to eld convert the unit on the ground before hanging. If the unit is already hung it should be taken down for the eld

conversion.

Side to Back Discharge Conversion

Place unit in well lit area. Remove the screws as shown in Figure 4 to free top panel and discharge panel.

2. Lift out the access panel and set aside. Lift and rotate the discharge panel to the other position as shown, being careful with the blower wiring.

Check blower wire routing and connections for tension or contact with sheet metal edges. Reroute if necessary.

4. Check refrigerant tubing for contact with other components.

5. Reinstall top panel and screws noting that the location for some screws will have changed.

6. Manually spin the fan wheel to insure that the wheel is not rubbing or obstructed.

7. Replace access panels.

Figure 4: Left Return Side to Back

Back to Side Discharge Conversion

If the discharge is changed from back to side, use above instruction noting that illustrations will be reversed.

Left vs. Right Return

It is not possible to eld convert return air between left or right

return models due to the necessity of refrigeration copper piping changes. However, the conversion process of side to back or back to side discharge for either right or left return

conguration is the same. In some cases, it may be possible

to rotate the entire unit 180 degrees if the return air connection needs to be on the opposite side. Note that rotating the unit will move the piping to the other end of the unit.

Figure 5: Right Return Side to Back

Water

Connection End

Water

Connection End

Return Air

Drain

Discharge Air

Return Air

Supply Duct

Side Discharge

Back Discharge

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

*3/4" IPT

Trap Depth

1.5" [38mm]

Min 1.5" [38mm]

1/4" per foot (21mm per m) drain slope

3/4" PVC or Copper by others

Rev.: 6/26/09S

Vent

* Some units include a painted drain connection. Using a threaded pipe or similar device to clear any excess paint accumulated inside this fitting may ease final drain line installation.

Horizontal Installation

Condensate Piping – Horizontal Units

Pitch the unit toward the drain as shown in Figure 2 to improve the condensate drainage. On small units (less than 2.5 tons/8.8 kW), insure that unit pitch does not cause condensate leaks inside the cabinet.

Install condensate trap at each unit with the top of the trap positioned below the unit condensate drain connection as shown in Figure 6.

Each unit must be installed with its own individual trap and connection to the condensate line (main) or riser.

Provide a means to ush or blow out the condensate line.

DO NOT install units with a common trap and/or vent. Always vent the condensate line when dirt or air can

collect in the line or a long horizontal drain line is required. Also vent when large units are working against higher external static pressure than other units connected to the same condensate main since this may cause poor drainage for all units on the line. WHEN A VENT IS INSTALLED IN THE DRAIN LINE, IT MUST BE LOCATED AFTER THE TRAP IN THE DIRECTION OF THE CONDENSATE FLOW.

Figure 6: Horizontal Condensate Connection

CAUTION!

CAUTION! Ensure condensate line is pitched toward drain

1/4” per foot [21mm per m] of run.

DUCT SySTEM INSTALLATION

Duct System Installation

Proper duct sizing and design is critical to the performance of the unit. The duct system should be

designed to allow adequate and even airow through the unit during operation. Air ow through the unit MUST be at or above the minimum stated airow for the unit

to avoid equipment damage. Duct systems should be designed for quiet operation. Refer to Figure 3 for

horizontal duct system details or gure 8 for vertical duct system details. A exible connector is recommended

for both discharge and return air duct connections on metal duct systems to eliminate the transfer of vibration to the duct system. To maximize sound attenuation of the unit blower, the supply and return plenums should

include internal berglass duct liner or be constructed from ductboard for the rst few feet. Application of the

unit to uninsulated ductwork in an unconditioned space

is not recommended, as the unit’s performance will be adversely affected.

At least one 90° elbow should be included in the supply

duct to reduce air noise. If air noise or excessive air ow

is a problem, the blower speed can be changed. For

airow charts, consult submittal data for the series and model of the specic unit.

If the unit is connected to existing ductwork, a previous check should have been made to insure that the

ductwork has the capacity to handle the airow required

for the unit. If ducting is too small, as in the replacement of a heating only system, larger ductwork should be installed. All existing ductwork should be checked for leaks and repaired as necessary.

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

noise

Flexible canvas duct connector to reduce noise and vibration

Use turning vanes in supply transition

Internally insulate supply duct for first 4’ [1.2m] each way to reduce noise

Internally insulate return transition duct to reduce noise

Rounded return transition

Rev.: 6/2/09S

Vertical Installation

Vertical Unit Location

Units are not designed for outdoor installation. Locate the unit in an INDOOR area that allows enough space for service personnel to perform typical maintenance or repairs without removing unit from the mechanical room/closet. Vertical units are typically installed in a mechanical room or closet. Never install units in areas subject to freezing or where humidity levels could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air). Consideration should be

given to access for easy removal of the lter and access panels. Provide sufcient room to make water, electrical,

and duct connection(s).

If the unit is located in a conned space, such as a closet,

provisions must be made for return air to freely enter the space by means of a louvered door, etc. Any access

panel screws that would be difcult to remove after the

unit is installed should be removed prior to setting the unit. Refer to Figures 7 and 8 for typical installation illustrations. Refer to unit submittal data or engineering design guide for dimensional data.

1. Install the unit on a piece of rubber, neoprene or other mounting pad material for sound isolation. The pad should be at least 3/8” [10mm] to 1/2” [13mm] in thickness. Extend the pad beyond all four edges of the unit.

2. Provide adequate clearance for lter replacement and drain pan cleaning. Do not block lter access

with piping, conduit or other materials. Refer to unit submittal data or engineering design guide for dimensional data.

3. Provide access for fan and fan motor maintenance and for servicing the compressor and coils without removing the unit.

4. Provide an unobstructed path to the unit within the

closet or mechanical room. Space should be sufcient

to allow removal of the unit, if necessary.

In limited side access installations, pre-removal of the control box side mounting screws will allow control box removal for future servicing (TC units only).

6. Provide access to water valves and ttings and

screwdriver access to the unit side panels, discharge collar and all electrical connections.

Figure 7: Vertical Unit Mounting

Air Pad or Extruded polystyrene insulation board

Figure 8: Typical Vertical Unit Installation Using Ducted Return Air

Internally insulate supply duct for first 4’ [1.2 m] each way to reduce noise

Use turning vanes in supply transition

Flexible canvas duct connector to reduce noise and vibration

Rounded return transition

Internally insulate return transition duct to reduce

Rev.: 6/2/09S

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Vertical Installation

Sound Attenuation for Vertical Units

Sound attenuation is achieved by enclosing the unit within a small mechanical room or a closet. Additional measures for sound control include the following:

1. Mount the unit so that the return air inlet is 90° to the

return air grille. Refer to Figure 9. Install a sound bafe as

illustrated to reduce line-of sight sound transmitted through return air grilles.

Mount the unit on a rubber or neoprene isolation pad to minimize vibration transmission to the building structure.

Figure 9: Vertical Sound Attenuation

Condensate Piping – Vertical Units

Vertical units utilize a condensate hose inside the cabinet as a trapping loop; therefore an external trap is not necessary. Figure 10a shows typical condensate connections. Figure 10b illustrates the internal trap for a typical vertical heat pump. Each unit must be installed with its own individual vent (where

necessary) and a means to ush or blow out the condensate

drain line. Do not install units with a common trap and/or vent.

Figure 10a: Vertical Condensate Drain

*3/4" IPT

Vent

3/4" PVC

(21mm per m)

Water

Connections

Alternate

Condensate

Location

NOTICE! Units with clear plastic drain lines should have regular maintenance (as required) to avoid buildup of debris, especially in new construction.

* Some units include a painted drain connection. Using a threaded pipe or similar device to clear any excess paint accumulated inside this fitting may ease final drain line installation.

Figure 10b: Vertical Internal Condensate Trap

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Swivel

EPT

Piping Installation

Installation of Supply and Return Piping

Follow these piping guidelines.

1. Install a drain valve at the base of each supply and

return riser to facilitate system ushing.

2. Install shut-off / balancing valves and unions at each unit to permit unit removal for servicing.

3. Place strainers at the inlet of each system circulating pump.

4. Select the proper hose length to allow slack between connection points. Hoses may vary in length by +2% to -4% under pressure.

5. Refer to Table 1. Do not exceed the minimum bend radius for the hose selected. Exceeding the minimum bend radius may cause the hose to collapse, which

reduces water ow rate. Install an angle adapter to

avoid sharp bends in the hose when the radius falls below the required minimum.

Insulation is not required on loop water piping except where the piping runs through unheated areas, outside the building or when the loop water temperature is below the minimum expected dew point of the pipe ambient conditions. Insulation is required if loop water temperature drops below the dew point (insulation is required for ground loop applications in most climates).

A backup wrench is required when tightening water connections on HB series to prevent water line damage.

CAUTION!

CAUTION! Corrosive system water requires corrosion resis-

tant ttings and hoses, and may require water treatment.

CAUTION!

CAUTION! Do not bend or kink supply lines or hoses.

CAUTION!

CAUTION! Piping must comply with all applicable codes.

Table 1: Metal Hose Minimum Bend Radii

Hose Diameter Minimum Bend Radii

1/2" [12.7mm] 2-1/2" [6.4cm] 3/4" [19.1mm] 4" [10.2cm]

1" [25.4mm] 5-1/2" [14cm]

1-1/4" [31.8mm] 6-3/4" [17.1cm]

Pipe joint compound is not necessary when Teon®

thread tape is pre-applied to hose assemblies or when

ared-end connections are used. If pipe joint compound

is preferred, use compound only in small amounts on

the external pipe threads of the tting adapters. Prevent sealant from reaching the ared surfaces of the joint.

Note: When anti-freeze is used in the loop, insure that it

is compatible with the Teon tape or pipe joint compound

that is applied.

Maximum allowable torque for brass ttings is 30 ft-lbs

[41 N-m]. If a torque wrench is not available, tighten nger-tight plus one quarter turn. Tighten steel ttings as necessary.

Optional pressure-rated hose assemblies designed

specically for use with Heat Controller units are available.

Similar hoses can be obtained from alternate suppliers.

Supply and return hoses are tted with swivel-joint ttings

at one end to prevent kinking during installation. Refer to Figure 11 for an illustration of a typical supply/

return hose kit. Adapters secure hose assemblies to the unit and risers. Install hose assemblies properly and check regularly to avoid system failure and reduced service life.

NOTICE! Do not allow hoses to rest against structural building components. Compressor vibration may be transmitted through the hoses to the structure, causing unnecessary noise complaints.

Figure 11: Supply/Return Hose Kit

Rib Crimped

Length

(2 ft [0.6m] Length Standard)

Brass Fitting

Brass

Fitting

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Water-Loop Heat Pump Applications

Commercial Water Loop Applications

Commercial systems typically include a number of units connected to a common piping system. Any unit plumbing maintenance work can introduce air into the piping system; therefore air elimination equipment is a major portion of the mechanical room plumbing. In piping systems expected to utilize water temperatures below 60°F [16°C], 1/2” (13mm) closed cell insulation is required on all piping surfaces to eliminate condensation (extended range units required). Metal to plastic threaded joints should never be used due to their tendency to leak over time. A backup wrench must be used for HB series

equipment ttings.

Teon tape thread sealant is recommended to minimize

internal fouling of the heat exchanger. Do not over tighten connections and route piping so as not to interfere with service or maintenance access. Hose kits are available

from Heat Controller in different congurations as shown

in Figure 12 for connection between the unit and the piping system.

Figure 12: Typical Water-Loop Application

3/8" [10mm] threaded rods

(by others)

The piping system should be ushed to remove dirt,

piping chips, and other foreign material prior to operation (see “Piping System Cleaning and Flushing Procedures”

in this manual). The ow rate is usually set between 2.25

and 3.5 gpm per ton [2.9 and 4.5 l/m per kW] of cooling capacity. Heat Controller recommends 3 gpm per ton [3.9 l/m per kW] for most applications of water loop heat pumps. To insure proper maintenance and servicing, P/T

ports are imperative for temperature and ow verication,

as well as performance checks. Water loop heat pump (cooling tower/boiler) systems

typically utilize a common loop, maintained between 60 90°F [16 - 32°C]. The use of a closed circuit evaporative cooling tower with a secondary heat exchanger between the tower and the water loop is recommended. If an open type cooling tower is used continuously, chemical

treatment and ltering will be necessary.

Low Water Temperature Cutout Setting - CXM Control

When antifreeze is selected, the FP1 jumper (JW3) should be clipped to select the low temperature (antifreeze 13°F [-10.6°C]) set point and avoid nuisance faults (see “Low Water Temperature Cutout Selection” in this manual). NOTE: Low water temperature operation requires extended range equipment.

Stainless steel braided hoses with threaded connections and one swivel end

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Ground-Loop Heat Pump Applications

Test individual horizontal loop circuits before backlling.

Test vertical U-bends and pond loop assemblies prior to

CAUTION!

CAUTION! The following instructions represent industry

accepted installation practices for closed loop earth coupled heat pump systems. Instructions are provided to assist the contractor in installing trouble free ground loops. These instructions are recommendations only. State/provincial and local codes MUST be followed and installation MUST conform to ALL applicable codes. It is the responsibility of the installing contractor to determine and comply with ALL applicable codes and regulations.

CAUTION!

CAUTION! Ground loop applications require extended range

equipment and optional refrigerant/water circuit insulation.

Pre-Installation

Prior to installation, locate and mark all existing underground utilities, piping, etc. Install loops for new construction before sidewalks, patios, driveways, and other construction has begun. During construction, accurately mark all ground loop piping on the plot plan as an aid in avoiding potential future damage to the installation.

Piping Installation

The typical closed loop ground source system is shown in Figure 13. All earth loop piping materials should be limited to polyethylene fusion only for in-ground sections

of the loop. Galvanized or steel ttings should not be

used at any time due to their tendency to corrode. All

plastic to metal threaded ttings should be avoided due

to their potential to leak in earth coupled applications. A

anged tting should be substituted. P/T plugs should be used so that ow can be measured using the pressure

drop of the unit heat exchanger. Earth loop temperatures can range between 25 and

110°F [-4 to 43°C]. Flow rates between 2.25 and 3 gpm per ton [2.41 to 3.23 l/m per kW] of cooling capacity is recommended in these applications.

installation. Pressures of at least 100 psi [689 kPa] should be used when testing. Do not exceed the pipe pressure rating. Test entire system when all loops are assembled.

Flushing the Earth Loop

Upon completion of system installation and testing, ush

the system to remove all foreign objects and purge to remove all air.

Antifreeze

In areas where minimum entering loop temperatures drop below 40°F [5°C] or where piping will be routed through areas subject to freezing, antifreeze is required. Alcohols and glycols are commonly used as antifreeze. Freeze protection should be maintained to 15°F [9°C] below the lowest expected entering loop temperature. For example, if 30°F [-1°C] is the minimum expected entering loop temperature, the leaving loop temperature would be 25 to 22°F [-4 to -6°C] and freeze protection should be at 15°F [-10°C]. Calculation is as follows: 30°F - 15°F = 15°F [-1°C - 9°C = -10°C].

All alcohols should be premixed and pumped from a reservoir outside of the building when possible or introduced under the water level to prevent fumes.

Calculate the total volume of uid in the piping system.

Then use the percentage by volume shown in table 2 for the amount of antifreeze needed. Antifreeze concentration should be checked from a well mixed

sample using a hydrometer to measure specic gravity.

Low Water Temperature Cutout Setting - CXM Control

Table 2: Antifreeze Percentages by Volume

Type

Methanol 100% USP food grade Propylene Glycol Ethanol*

* Must not be denatured with any petroleum based product

Minimum Temperature for Low Temperature Protection

10°F [-12.2°C] 15°F [-9.4°C] 20°F [-6.7°C] 25°F [-3.9°C]

25% 38% 29%

21% 25% 25%

16% 22% 20%

10% 15% 14%

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Ground-Loop Heat Pump Applications

Figure 13: Typical Ground-Loop Application

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Ground-Water Heat Pump Applications

Water Coil Low Temperature Limit Setting

For all open loop systems the 30°F [-1.1°C] FP1 setting (factory setting-water) should be used to avoid freeze damage to the unit. See “Low Water Temperature Cutout Selection” in this manual for details on the low limit setting.

Figure 14: Typical Open Loop/Well Application

Water

Control

Valve

P/T Plugs

Flow

Regulator

Boiler

Drains

Pressure

Tank

Water Out

Water In

Shut-Off

Valve

Optional

Filter

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Water Quality Standards

Table 3: Water Quality Standards

WaterÊQuality

Parameter

Material

Closed

Recirculating

OpenÊLoopÊandÊRecirculatingÊWell

ScalingÊPotentialÊ-ÊPrimaryÊMeasurement

AboveÊtheÊgivenÊlimits,ÊscalingÊisÊlikelyÊtoÊoccur.ÊÊScalingÊindexesÊshouldÊbeÊcalculatedÊusingÊtheÊlimitsÊbelow

pH/CalciumÊHardness

Method

All

pHÊ<Ê7.5ÊandÊCaÊHardnessÊ<100ppm

IndexÊLimitsÊforÊProbableÊScalingÊSituationsÊ-Ê(OperationÊoutsideÊtheseÊlimitsÊisÊnotÊrecommended)

ScalingÊindexesÊshouldÊbeÊcalculatedÊatÊ150¡FÊ[66¡C]ÊforÊdirectÊuseÊandÊHWGÊapplications,ÊandÊatÊ90¡FÊ[32¡C]ÊforÊindirectÊHXÊuse.Ê AÊmonitoringÊplanÊshouldÊbeÊimplemented.

Ryznar StabilityÊIndex IfÊ>7.5ÊminimizeÊsteelÊpipeÊuse.

Langelier SaturationÊIndex

All

- 6.0Ê-Ê7.5

IfÊ<-0.5ÊminimizeÊsteelÊpipeÊuse.ÊBasedÊuponÊ150¡FÊ[66¡C]ÊHWGÊand

-0.5ÊtoÊ+0.5

DirectÊwell,Ê85¡FÊ[29¡C]ÊIndirectÊWellÊHX

IronÊFouling

IronÊFe2+(Ferrous) (BacterialÊIronÊpotential)

IronÊFouling

All

Ê(ferrous)>0.2ÊppmÊwithÊpHÊ6Ê-Ê8,ÊO2<5ÊppmÊcheckÊforÊironÊbacteria

IfÊFe

AboveÊthisÊlevelÊdepositionÊwillÊoccur.

<0.2ÊppmÊ(Ferrous)

<0.5ÊppmÊofÊOxygen

CorrosionÊPrevention

HydrogenÊSulfideÊ(H

AmmoniaÊionÊasÊhydroxide,Êchloride,Ê nitrateÊandÊsulfateÊcompounds

Maximum ChlorideÊLevels

6Ê-Ê8.5

All

Copper - <20ppm NR NR

CuproNickel - <150Êppm NR NR

304ÊSS - <400Êppm <250Êppm <150 ppm 316ÊSS - <1000Êppm <550Êppm < 375 ppm

Titanium - >1000Êppm >550Êppm >375 ppm

Monitor/treatÊas

needed

- <0.5Êppm

MinimizeÊsteelÊpipeÊbelowÊ7ÊandÊnoÊopenÊtanksÊwithÊpHÊ<8

AtÊH

S>0.2Êppm,ÊavoidÊuseÊofÊcopperÊandÊcopperÊnickelÊpipingÊorÊHX's.

CopperÊalloyÊ(bronzeÊorÊbrass)ÊcastÊcomponentsÊareÊOKÊtoÊ<0.5Êppm.

50¡FÊ(10¡C) 75¡FÊ(24¡C) 100ϒF (38ϒC)

RottenÊeggÊsmellÊappearsÊatÊ0.5ÊppmÊlevel.

MaximumÊAllowableÊatÊmaximumÊwaterÊtemperature.

6Ê-Ê8.5

<0.5Êppm

ErosionÊandÊClogging

<10ÊppmÊofÊparticles andÊaÊmaximum velocityÊofÊ6ÊfpsÊ[1.8Êm/s].

ParticulateÊSizeÊand Erosion

Notes:

• Closed Recirculating system is identified by a

• Recirculating open wells should observe the open recirculating design considerations.

• NR - Application not recommended.

• "-" No design Maximum.

All

FilteredÊforÊmaximum 800ÊmicronÊ[800mm, 20Êmesh]Êsize.

closed pressurized piping system.

<10ÊppmÊ(<1ÊppmÊ"sandfree"ÊforÊreinjection)ÊofÊparticlesandÊaÊmaximum velocityÊofÊ6ÊfpsÊ[1.8Êm/s].ÊFilteredÊforÊmaximumÊ800ÊmicronÊ[800mm, 20Êmesh]Êsize.AnyÊparticulateÊthatÊisÊnotÊremovedÊcanÊpotentially clogÊcomponents.

Rev.: 01/21/09B

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Electrical - Line Voltage

All eld installed wiring, including electrical ground, must

comply with the National Electrical Code as well as all applicable local codes. Refer to the unit electrical data for

fuse sizes. Consult wiring diagram for eld connections

that must be made by the installing (or electrical)

contractor. All nal electrical connections must be made with a length of exible conduit to minimize vibration and

sound transmission to the building.

General Line Voltage Wiring

Be sure the available power is the same voltage and phase shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric Code, whichever is applicable.

Transformer

All 208/230 voltage units are factory wired for 208 volt. If supply voltage is 230 volt, installer must rewire transformer. See wire diagram for connections.

WARNING!

WARNING! To avoid possible injury or death due to

electrical shock, open the power supply disconnect switch and secure it in an open position during installation.

CAUTION!

wiring. Unit terminals are not designed to accept other types of conductors.

Use only copper conductors for eld installed electrical

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Electrical - Line Voltage

Table 4a: HB Series Electrical Data - (Standard 60Hz Units)

Voltage

Model

006 1 009 1 012 1

015

018

024

030

036

042

048

060

Code

1 8 1 8 1 8 1 8 3 4 1 8 3 4 1 3 4 5 1 3 4 5 1 3 4 5

Rated

Voltage

208-230/60/1 197/254 1 3.3 17.7 0.40 3.7 4.5 15 208-230/60/1 197/254 1 5.6 22.2 0.80 6.4 7.8 15 208-230/60/1 197/254 1 5.1 32.5 0.80 5.9 7.2 15 208-230/60/1 197/254 1 6.0 29.0 1.00 7.0 8.5 15

265/60/1 239/292 1 5.4 28.0 0.86 6.3 7.6 15

208-230/60/1 197/254 1 7.2 33.0 1.00 8.2 10.0 15

265/60/1 239/292 1 5.9 28.0 0.86 6.8 8.2 15

208-230/60/1 197/254 1 12.8 58.3 1.50 14.3 17.5 30

265/60/1 239/292 1 9.6 54.0 1.30 10.9 13.3 20

208-230/60/1 197/254 1 14.1 73.0 3.00 17.1 20.6 30

265/60/1 239/292 1 11.2 60.0 2.70 13.9 16.7 25

208-230/60/3 197/254 1 8.9 58.0 3.00 11.9 14.1 20

460/60/3 414/506 1 4.2 28.0 1.70 5.9 7.0 15

208-230/60/1 197/254 1 16.7 79.0 1.80 18.5 22.7 35

265/60/1 239/292 1 13.5 72.0 2.00 15.5 18.9 30

208-230/60/3 197/254 1 10.4 73.0 1.80 12.2 14.8 25

460/60/3 414/506 1 5.8 38.0 1.24 7.0 8.5 15 208-230/60/1 197/254 1 17.9 112.0 3.00 20.9 25.4 40 208-230/60/3 197/254 1 13.5 88.0 3.00 16.5 19.9 30

460/60/3 414/506 1 6.0 44.0 1.70 7.7 9.2 15

575/60/3 518/633 1 4.9 34.0 1.40 6.3 7.5 15 208-230/60/1 197/254 1 21.8 117.0 3.40 25.2 30.7 50 208-230/60/3 197/254 1 13.7 83.1 3.40 17.1 20.5 30

460/60/3 414/506 1 6.2 41.0 1.80 8.0 9.6 15

575/60/3 518/633 1 4.8 33.0 1.40 6.2 7.4 15 208-230/60/1 197/254 1 26.3 134.0 4.90 31.2 37.8 60 208-230/60/3 197/254 1 15.6 110.0 4.90 20.5 24.4 40

460/60/3 414/506 1 7.8 52.0 2.50 10.3 12.3 20

575/60/3 518/633 1 5.8 38.9 1.90 7.7 9.2 15

Voltage

Min/ Max

Compressor

QTY RLA LRA

Fan

Motor

FLA

Total

Unit FLA

Min

Circuit

Amp

Max

Fuse/

HACR

HACR circuit breaker in USA only All fuses Class RK-5

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Table 4b: HB Series Electrical Data - (Standard 60Hz Units High Static)

Model

015

018

024

030

036

042

048

060

Voltage

Code

1 8 1 8 1 8 1 8 3 4 1 8 3 4 1 3 4 5 1 3 4 5 1 3 4 5

Rated

Voltage

208-230/60/1 197/254 1 6.0 29.0 1.00 7.0 8.5 15

265/60/1 239/292 1 5.4 28.0 0.86 6.3 7.6 15

208-230/60/1 197/254 1 7.2 33.0 1.50 8.7 10.5 15

265/60/1 239/292 1 5.9 28.0 1.30 7.2 8.7 15

208-230/60/1 197/254 1 12.8 58.3 3.00 15.8 19.0 30

265/60/1 239/292 1 9.6 54.0 2.70 12.3 14.7 20

208-230/60/1 197/254 1 14.1 73.0 3.00 17.1 20.6 30

265/60/1 239/292 1 11.2 60.0 2.70 13.9 16.7 25

208-230/60/3 197/254 1 8.9 58.0 3.00 11.9 14.1 20

460/60/3 414/506 1 4.2 28.0 1.70 5.9 7.0 15

208-230/60/1 197/254 1 16.7 79.0 3.00 19.7 23.9 40

265/60/1 239/292 1 13.5 72.0 2.70 16.2 19.6 30

208-230/60/3 197/254 1 10.4 73.0 3.00 13.4 16.0 25

460/60/3 414/506 1 5.8 38.0 1.70 7.5 9.0 15 208-230/60/1 197/254 1 17.9 112.0 3.00 20.9 25.4 40 208-230/60/3 197/254 1 13.5 88.0 3.00 16.5 19.9 30

460/60/3 414/506 1 6.0 44.0 1.70 7.7 9.2 15

575/60/3 518/633 1 4.9 34.0 1.40 6.3 7.5 15 208-230/60/1 197/254 1 21.8 117.0 4.90 26.7 32.2 50 208-230/60/3 197/254 1 13.7 83.1 4.90 18.6 22.0 35

460/60/3 414/506 1 6.2 41.0 2.50 8.7 10.3 15

575/60/3 518/633 1 4.8 33.0 1.90 6.7 7.9 15 208-230/60/1 197/254 1 26.3 134.0 5.80 32.1 38.7 60 208-230/60/3 197/254 1 15.6 110.0 5.80 21.4 25.3 40

460/60/3 414/506 1 7.8 52.0 2.60 10.4 12.4 20

575/60/3 518/633 1 5.8 38.9 2.30 8.1 9.6 15

Voltage

Min/ Max

Compressor

QTY RLA LRA

Fan

Motor

FLA

Total

Unit FLA

Min

Circuit

Amp

Max

Fuse/

HACR

HACR circuit breaker in USA only All fuses Class RK-5

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Transformer

CXM

Control

Contactor -CC

Low Voltage Connector

Unit Power Supply

See electrical table for

breaker size

Grnd

Rev.: 5/17/01 B

Capacitor

Electrical - Power Wiring

Power Connection

WARNING!

WARNING! Disconnect electrical power source to prevent

injury or death from electrical shock.

Line voltage connection is made by connecting the incoming line voltage wires to the “L” side of the contractor as shown in Figure 15. Consult electrical data tables for correct fuse size.

CAUTION!

Use only copper conductors for eld installed electrical

wiring. Unit terminals are not designed to accept other types of conductors.

Electrical - Line Voltage

All eld installed wiring, including electrical ground, must

comply with the National Electrical Code as well as all applicable local codes. Refer to the unit electrical data for

fuse sizes. Consult wiring diagram for eld connections

that must be made by the installing (or electrical)

contractor. All nal electrical connections must be made with a length of exible conduit to minimize vibration and

sound transmission to the building.

Transformer

All 208/230 voltage units are factory wired for 208 volt. If supply voltage is 230 volt, installer must rewire transformer. See wire diagram for connections.

General Line Voltage Wiring

Figure 15: HB Single Phase Line Voltage Field Wiring. Three phase wiring is similar except that all three power wires are directly connected to the contactor.

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Electrical - Power & Low Voltage Wiring

Blower Speed Selection – Units with PSC Motor

PSC (Permanent Split Capacitor) blower fan speed can be changed by moving the blue wire on the fan motor terminal block to the desired speed as shown in Figure 16. Most Heat Controller units are shipped on the medium speed tap. Consult submittal data or

engineering design guide for specic unit airow tables. Typical unit design delivers rated airow at nominal

static (0.15 in. w.g. [37Pa]) on medium speed and rated

airow at a higher static (0.4 to 0.5 in. w.g. [100 to 125

Pa]) on high speed for applications where higher static is required. Low speed will deliver approximately 85%

of rated airow at 0.10 in. w.g. [25 Pa]. An optional high

static blower is available on some models.

Special Note for AHRI Testing: To achieve rated

airow for ARI testing purposes on all PSC products,

it is necessary to change the fan speed to “HI” speed. When the heat pump has experienced less than 100

operational hours and the coil has not had sufcient time

to be “seasoned”, it is necessary to clean the coil with a mild surfactant such as Calgon to remove the oils left by manufacturing processes and enable the condensate to properly “sheet” off of the coil.

Low Water Temperature Cutout Selection

The CXM control allows the eld selection of low water

(or water-antifreeze solution) temperature limit by clipping jumper JW3, which changes the sensing temperature associated with thermistor FP1. Note that the FP1 thermistor is located on the refrigerant line between the coaxial heat exchanger and expansion device (TXV or cap tube). Therefore, FP1 is sensing refrigerant temperature, not water temperature, which is a better

indication of how water ow rate/temperature is affecting

the refrigeration circuit. The factory setting for FP1 is for systems using water

(30°F [-1.1°C] refrigerant temperature). In low water temperature (extended range) applications with antifreeze (most ground loops), jumper JW3 should be clipped as shown in Figure 18 to change the setting to 10°F [-12.2°C] refrigerant temperature, a more suitable temperature when using an antifreeze solution. All Heat Controller units operating with entering water temperatures below 59°F [15°C] must include the optional water/refrigerant circuit insulation package to prevent internal condensation.

Figure 16: PSC Motor Speed Selection

Connect the blue wire to:

H for High speed fan M for Medium speed fan L for Low speed fan

Medium is factory setting

Fan Motor

ELECTRICAL - LOW VOLTAGE WIRING Thermostat Connections

The thermostat should be wired directly to the CXM board. Figure 17 shows wiring for HB units.

See “Electrical – Thermostat” for specic terminal

connections.

Figure 17: HB Low Voltage Field Wiring

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Water Valve Wiring

Electrical - Low Voltage Wiring

Figure 18: FP1 Limit Setting

JW3-FP1

jumper should

be clipped for

low temperature

operation

CXM PCB

Accessory Connections A terminal paralleling the compressor contactor coil has been provided on the CXM control. Terminal “A” is designed to control accessory devices, such as water valves. Note: This terminal should be used only with 24 Volt signals and not line voltage. Terminal “A” is energized with the compressor contactor.

See Figure 19 or the specic unit wiring diagram for

details. Low Voltage VA Ratings

Component VA Typical Blower Relay 6 - 7 Typical Reversing Valve Solenoid 4 - 6 30A Compressor Contactor 6 - 9

Subtotal 16 - 22 + CXM board (5 - 9 VA)* 21 - 31 Remaing VA for Accessories 19 - 29

*Standard transformer for CXM board is 50VA.

Figure 19: Accessory Wiring

Water Solenoid Valves

An external solenoid valve(s) should be used on ground

water installations to shut off ow to the unit when the

compressor is not operating. A slow closing valve may be required to help reduce water hammer. Figure 19 shows typical wiring for a 24VAC external solenoid valve. Figures 20 and 21 illustrate typical slow closing water control valve wiring for Taco 500 series and Taco ESP series valves. Slow closing valves take approximately 60 seconds to

open (very little water will ow before 45 seconds). Once

fully open, an end switch allows the compressor to be energized. Only relay or triac based electronic thermostats should be used with slow closing valves. When wired as shown, the slow closing valve will operate properly with the following notations:

1. The valve will remain open during a unit lockout.

2. The valve will draw approximately 25-35 VA through the “Y” signal of the thermostat.

Note: This valve can overheat the anticipator of an electromechanical thermostat. Therefore, only relay or triac based thermostats should be used.

Figure 20: Taco 500 Series Valve Wiring

CAUTION!

CAUTION! Many units are installed with a factory or eld

supplied manual or electric shut-off valve. DAMAGE WILL OCCUR if shut-off valve is closed during unit operation. A high pressure switch must be installed on the heat pump side of

any eld provided shut-off valves and connected to the heat

pump controls in series with the built-in refrigerant circuit high pressure switch to disable compressor operation if water

pressure exceeds pressure switch setting. The eld installed

high pressure switch shall have a cut-out pressure of 300 psig and a cut-in pressure of 250 psig.

Heater Switch

Thermostat

Taco Valve

AVM

Figure 21: Taco SBV Valve Wiring

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Electrical - Thermostat Wiring

Thermostat Installation

The thermostat should be located on an interior wall in a larger room, away from supply duct drafts. DO NOT locate the thermostat in areas subject to sunlight, drafts or on external walls. The wire access hole behind the thermostat may in certain cases need to be sealed to prevent erroneous temperature measurement. Position the thermostat back plate against the wall so that it appears level and so the thermostat wires protrude

Figure 22: Units With PSC Fan And CXM

Connection to CXM Control

ATM11C01 Thermostat

Compressor

Reversing Valve

Fan

24Vac Hot

Y W O G

CXM

O G R

through the middle of the back plate. Mark the position of the back plate mounting holes and drill holes with a 3/16” (5mm) bit. Install supplied anchors and secure plate to the wall. Thermostat wire must be 18 AWG wire. Wire the appropriate thermostat as shown in Figures 22 through 25c to the low voltage terminal strip on the CXM control board. Practically any heat pump thermostat will work with Heat Controller units, provided it has the correct number of heating and cooling stages.

Field Wiring Factory Wiring

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Description of Operation LED Alarm Relay

Normal Mode On Open Normal Mode with UPS Warning On Cycle (closed 5 sec., Open 25 sec.) CXM is non-functional Off Open Fault Retry Slow Flash Open Lockout Fast Flash Closed Over/Under Voltage Shutdown Slow Flash Open (Closed after 15 minutes)

Test Mode - No fault in memory Flashing Code 1 Cycling Code 1 Test Mode - HP Fault in memory Flashing Code 2 Cycling Code 2 Test Mode - LP Fault in memory Flashing Code 3 Cycling Code 3 Test Mode - FP1 Fault in memory Flashing Code 4 Cycling Code 4 Test Mode - FP2 Fault in memory Flashing Code 5 Cycling Code 5 Test Mode - CO Fault in memory Flashing Code 6 Cycling Code 6

Test Mode - Over/Under shutdown in memory

Flashing Code 7 Cycling Code 7

Test Mode - UPS in memory Flashing Code 8 Cycling Code 8 Test Mode - Swapped Thermistor Flashing Code 9 Cycling Code 9

CXM Controls

CXM Control

For detailed control information, see CXM Application, Operation and Maintenance manual.

Field Selectable Inputs

Test mode: Test mode allows the service technician to check the operation of the control in a timely manner. By momentarily shorting the test terminals, the CXM control enters a 20 minute test mode period in which all time delays are sped up 15 times. Upon entering test mode,

the status LED will ash a code representing the last fault.

For diagnostic ease at the thermostat, the alarm relay will also cycle during test mode. The alarm relay will cycle on and off similar to the status LED to indicate a code representing the last fault, at the thermostat. Test mode can be exited by shorting the test terminals for 3 seconds. Retry Mode: If the control is attempting a retry of a fault,

the status LED will slow ash (slow ash = one ash

every 2 seconds) to indicate the control is in the process of retrying.

Field Conguration Options

Note: In the following eld conguration options, jumper

wires should be clipped ONLY when power is removed from the CXM control.

whether compressor has an “on” delay. If set to stage 2, the compressor will have a 3 second delay before energizing. Also, if set for stage 2, the alarm relay will NOT cycle during test mode.

On = Stage 1. Off = Stage 2

DIP switch 3: Not Used. DIP switch 4: DDC Output at EH2 - provides selection for DDC operation. If set to “DDC Output at EH2,” the EH2 terminal will continuously output the last fault code of the controller. If set to “EH2 normal,” EH2 will operate as standard electric heat output.

On = EH2 Normal. Off = DDC Output at EH2.

NOTE: Some CXM controls only have a 2 position DIP switch package. If this is the case, this option can be selected by clipping the jumper which is in position 4 of SW1.

Jumper not clipped = EH2 Normal. Jumper clipped = DDC Output at EH2.

DIP switch 5: Factory Setting - Normal position is “On.” Do not change selection unless instructed to do so by the factory.

Table 5: CXM LED And Alarm Relay Operations

Water coil low temperature limit setting: Jumper 3 (JW3-

FP1 Low Temp) provides eld selection of temperature

limit setting for FP1 of 30°F or 10°F [-1°F or -12°C] (refrigerant temperature).

Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].

Air coil low temperature limit setting: Jumper 2 (JW2-FP2

Low Temp) provides eld selection of temperature limit

setting for FP2 of 30°F or 10°F [-1°F or -12°C] (refrigerant temperature). Note: This jumper should only be clipped under extenuating circumstances, as recommended by the factory.

Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].

Alarm relay setting: Jumper 1 (JW1-AL2 Dry) provides

eld selection of the alarm relay terminal AL2 to be

jumpered to 24VAC or to be a dry contact (no connection).

Not Clipped = AL2 connected to R. Clipped = AL2 dry contact (no connection).

DIP Switches

Note: In the following eld conguration options, DIP

switches should only be changed when power is removed from the CXM control. DIP switch 1: Unit Performance Sentinel Disable -

provides eld selection to disable the UPS feature.

On = Enabled. Off = Disabled.

DIP switch 2: Stage 2 Selection - provides selection of

-Slow Flash = 1 ash every 2 seconds

-Fast Flash = 2 ashes every 1 second

-Flash code 2 = 2 quick ashes, 10 second pause, 2 quick

ashes, 10 second pause, etc.

-On pulse 1/3 second; off pulse 1/3 second

CAUTION!

CAUTION! Do not restart units without inspection and

remedy of faulting condition. Equipment damage may occur.

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Safety Features

Safety Features – CXM Control

The safety features below are provided to protect the compressor, heat exchangers, wiring and other components from damage caused by operation outside of design conditions.

Anti-short cycle protection: The control features a 5 minute anti-short cycle protection for the compressor. Note: The 5 minute anti-short cycle also occurs at power up. Random start: The control features a random start upon power up of 5-80 seconds. Fault Retry: In Fault Retry mode, the Status LED begins

slowly ashing to signal that the control is trying to

recover from a fault input. The control will stage off the outputs and then “try again” to satisfy the thermostat

input call. Once the thermostat input call is satised,

the control will continue on as if no fault occurred. If 3 consecutive faults occur without satisfying the thermostat input call, the control will go into “lockout” mode. The last fault causing the lockout will be stored in memory and can be viewed by going into test mode (CXM board). Note: FP1/FP2 faults are factory set at only one try. Lockout: In lockout mode, the status LED will begin fast

ashing. The compressor relay is turned off immediately.

Lockout mode can be “soft” reset by turning off the thermostat (or satisfying the call). A “soft” reset keeps the fault in memory but resets the control. A “hard” reset (disconnecting power to the control) resets the control and erases fault memory. Lockout with emergency heat: While in lockout mode, if W becomes active (CXM), emergency heat mode will occur. High pressure switch: When the high pressure switch opens due to high refrigerant pressures, the compressor relay is de-energized immediately since the high pressure switch is in series with the compressor contactor coil. The high pressure fault recognition is immediate (does not delay for 30 continuous seconds before de-energizing the compressor).

High pressure lockout code = 2

Example: 2 quick ashes, 10 sec pause, 2 quick ashes,

10 sec. pause, etc. Low pressure switch: The low pressure switch must be open and remain open for 30 continuous seconds during “on” cycle to be recognized as a low pressure fault. If the low pressure switch is open for 30 seconds prior to compressor power up it will be considered a low pressure (loss of charge) fault. The low pressure switch input is bypassed for the initial 60 seconds of a compressor run cycle.

Low pressure lockout code = 3

Water coil low temperature (FP1): The FP1 thermistor temperature must be below the selected low temperature limit setting for 30 continuous seconds during a

compressor run cycle to be recognized as a FP1 fault. The FP1 input is bypassed for the initial 60 seconds of a compressor run cycle. FP1 is set at the factory for one try. Therefore, the control will go into lockout mode once the FP1 fault has occurred.

FP1 lockout code = 4

Air coil low temperature (FP2): The FP2 thermistor temperature must be below the selected low temperature limit setting for 30 continuous seconds during a compressor run cycle to be recognized as a FP2 fault. The FP2 input is bypassed for the initial 60 seconds of a compressor run cycle. FP2 is set at the factory for one try. Therefore, the control will go into lockout mode once the FP2 fault has occurred.

FP2 lockout code = 5

Condensate overow: The condensate overow sensor must sense overow level for 30 continuous seconds to be recognized as a CO fault. Condensate overow will be

monitored at all times.

CO lockout code = 6

Over/under voltage shutdown: An over/under voltage condition exists when the control voltage is outside the range of 19VAC to 30VAC. Over/under voltage shut down is a self-resetting safety. If the voltage comes back within range for at least 0.5 seconds, normal operation is restored. This is not considered a fault or lockout. If the CXM is in over/under voltage shutdown for 15 minutes, the alarm relay will close.

Over/under voltage shut down code = 7

Unit Performance Sentinel-UPS (patent pending): The UPS feature indicates when the heat pump is operating

inefciently. A UPS condition exists when:

a) In heating mode with compressor energized, FP2 is

greater than 125°F [52°C] for 30 continuous seconds, or:

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

CXM Controls

b) In cooling mode with compressor energized, FP1 is

greater than 125°F [52°C] for 30 continuous seconds, or:

c) In cooling mode with compressor energized, FP2 is

less than 40°F [4.5°C] for 30 continuous seconds.

If a UPS condition occurs, the control will immediately go to UPS warning. The status LED will remain on as if the control is in normal mode. Outputs of the control, excluding LED and alarm relay, will NOT be affected by UPS. The UPS condition cannot occur during a compressor off cycle. During UPS warning, the alarm relay will cycle on and off. The cycle rate will be “on” for 5 seconds, “off” for 25 seconds, “on” for 5 seconds, “off” for 25 seconds, etc.

UPS warning code = 8

Swapped FP1/FP2 thermistors: During test mode, the control monitors to see if the FP1 and FP2 thermistors are in the appropriate places. If the control is in test mode, the control will lockout with code 9 after 30 seconds if: a) The compressor is on in the cooling mode and the

FP1 sensor is colder than the FP2 sensor, or:

b) The compressor is on in the heating mode and the

FP2 sensor is colder than the FP1 sensor.

CXM Control Start-up Operation

The control will not operate until all inputs and safety controls are checked for normal conditions. The compressor will have a 5 minute anti-short cycle delay

at power-up. The rst time after power-up that there is a

call for compressor, the compressor will follow a 5 to 80 second random start delay. After the random start delay and anti-short cycle delay, the compressor relay will be energized. On all subsequent compressor calls, the random start delay is omitted.

Diagnostic Features

The LED on the CXM board advises the technician of the current status of the CXM control. The LED can display either the current CXM mode or the last fault in memory if in test mode. If there is no fault in memory, the LED will

ash Code 1 (when in test mode).

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Cooling Heating Cooling Heating Cooling Heating

45ºF [7ºC] 39ºF [4ºC] 45ºF [7ºC] 39ºF [4ºC] 45ºF [7ºC] 39ºF [4ºC]

0.6ºF [27ºC] 68ºF [20ºC] 80.6ºF [27ºC] 68ºF [20ºC] 80.6ºF [27ºC] 68ºF [20ºC] 10ºF [43ºC] 85ºF [29ºC] 110ºF [43ºC] 85ºF [29ºC] 110ºF [43ºC] 85ºF [29ºC]

60/45ºF [16/7ºC] 40ºF [4.4ºC]

60/50ºF [16/10ºC]

45ºF [7ºC] 65/50ºF [18/10ºC] 45ºF [7.2ºC]

80.6/66.2ºF [27/19ºC] 68ºF [20ºC] 80.6/66.2ºF [27/19ºC] 68ºF [20ºC] 80.6/66.2ºF [27/19ºC] 68ºF [20ºC] 100/75ºF [38/24ºC] 80ºF [27ºC] 95/75ºF [35/24ºC] 80ºF [27ºC]

95/75ºF [35/24ºC]

80ºF [27ºC]

30ºF [-1ºC] 20ºF [-6.7ºC] 30ºF [-1ºC] 20ºF [-6.7ºC] 30ºF [-1ºC]

20ºF [-6.7ºC]

50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC] 50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC] 50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]

120ºF [49ºC] 90ºF [32ºC] 120ºF [49ºC] 90ºF [32ºC]

120ºF [49ºC]

90ºF [32ºC]

TCTSTT

[1.6 to 3.2 l/m per kW]

1.5 to 3.0 gpm / ton

[1.6 to 3.2 l/m per kW]

1.5 to 3.0 gpm / ton

[1.6 to 3.2 l/m per kW]

1.5 to 3.0 gpm / ton

UNIT STARTING AND OPERATING CONDITIONS

Operating Limits

Environment – Units are designed for indoor installation only. Never install units in areas subject to freezing or where humidity levels could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air). Power Supply – A voltage variation of +/– 10% of nameplate utilization voltage is acceptable.

Determination of operating limits is dependent primarily upon three factors: 1) return air temperature. 2) water temperature, and 3) ambient temperature. When any one of these factors is at minimum or maximum levels, the other two factors should be at normal levels to insure proper unit operation. Extreme variations in temperature and humidity and/or corrosive water or air will adversely affect unit performance, reliability, and service life. Consult Table 6a for operating limits.

Table 6a: Operating Limits

Operating

Starting Limits

Air Limits

Min. ambient air, DB Rated ambient air, DB 8 Max. ambient air, DB 1 Min. entering air, DB/WB Rated entering air, DB/WB Max. entering air, DB/WB

Water Limits

Min. entering water Normal entering water Max. entering water

Normal Water Flow

65/50ºF [18/10ºC] 45ºF [7.2ºC]

0.6/66.2ºF [27/19ºC] 68ºF [20ºC] 95/75ºF [35/24ºC]

50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]

Cooling Heating

5ºF [7ºC] 39ºF [4ºC]

0.6ºF [27ºC] 68ºF [20ºC]

110ºF [43ºC] 85ºF [29ºC]

30ºF [-1ºC]

120ºF [49ºC]

80ºF [27ºC] 20ºF [-6.7ºC]

90ºF [32ºC]

1.5 to 3.0 gpm / ton

[1.6 to 3.2 l/m per kW]

Starting Conditions

Starting conditions are based upon the following notes: Notes:

1. Conditions in Table 6b are not normal or continuous operating conditions. Minimum/maximum limits are start-up conditions to bring the building space up to occupancy temperatures. Units are not designed to operate under these conditions on a regular basis.

2. Voltage utilization range complies with AHRI Standard 110

Table 6b: Starting Limits

Commissioning Limits

Air Limits

Min. ambient air , DB 45ºF [7ºC] 39ºF [4ºC] Rated ambient air , DB 80.6ºF [27ºC] 68ºF [20ºC] Max. ambient air , DB 110ºF [43ºC] 85ºF [29ºC] Min. entering air , DB/WB *50/45ºF [10/7ºC] 40ºF [4.5ºC] Rated entering air , DB/WB 80.6/66.2ºF [27/19ºC] 68ºF [20ºC ] Max. entering air , DB/WB 110/83ºF [43/28ºC] 80ºF [27ºC]

Water Limits

Min. entering water 30ºF [-1ºC ] 20ºF [-6.7ºC] Normal entering water 50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC] Max. entering water 120ºF [49ºC] 90ºF [32ºC]

Normal Water Flow

Normal W ater Flo w

TT/TS/TR/TC

Cooling Heating

1.5 to 3.0 gpm / to n

[1.6 to 3.2 l/m per kW ]

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Piping System Cleaning and Flushing

Cleaning and ushing the WLHP piping system is the

single most important step to insure proper start-up and

continued efcient operation of the system. Follow the instructions below to properly clean and ush

the system:

Insure that electrical power to the unit is disconnected.

2. Install the system with the supply hose connected directly to the return riser valve. Use a single length of

exible hose.

3. Open all air vents. Fill the system with water. DO

NOT allow system to overow. Bleed all air from the

system. Pressurize and check the system for leaks and repair as appropriate.

Verify that all strainers are in place (Heat Controller recommends a strainer with a #20 stainless steel wire mesh). Start the pumps, and systematically check each vent to ensure that all air is bled from the system.

5. Verify that make-up water is available. Adjust makeup water as required to replace the air which was bled from the system. Check and adjust the water/air level in the expansion tank.

6. Set the boiler to raise the loop temperature to approximately 86°F [30°C]. Open a drain at the lowest point in the system. Adjust the make-up water replacement rate to equal the rate of bleed.

7. Rell the system and add trisodium phosphate in

a proportion of approximately one pound per 150 gallons [1/2 kg per 750 l] of water (or other equivalent approved cleaning agent). Reset the boiler to raise

the loop temperature to 100°F [38°C]. Circulate the solution for a minimum of 8 to 24 hours. At the end of this period, shut off the circulating pump and drain the solution. Repeat system cleaning if desired.

8. When the cleaning process is complete, remove the short-circuited hoses. Reconnect the hoses to the proper supply, and return the connections to each of

the units. Rell the system and bleed off all air.

9. Test the system pH with litmus paper. The system water should be in the range of pH 6.0 - 8.5 (see table

3). Add chemicals, as appropriate to maintain neutral pH levels.

10. When the system is successfully cleaned, ushed, relled and bled, check the main system panels,

safety cutouts and alarms. Set the controls to properly maintain loop temperatures.

DO NOT use “Stop Leak” or similar chemical agent in this system. Addition of chemicals of this type to the loop water will foul the heat exchanger and inhibit unit operation.

NOTE: Heat Controller strongly recommends all piping connections, both internal and external to the unit, be pressure tested by an appropriate method prior to any

nishing of the interior space or before access to all

connections is limited. Test pressure may not exceed the maximum allowable pressure for the unit and all components within the water system. Heat Controller will not be responsible or liable for damages from water leaks due to inadequate or lack of a pressurized leak test, or damages caused by exceeding the maximum pressure rating during installation.

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

CAUTION!

CAUTION! To avoid possible damage to a plastic (PVC)

piping system, do not allow temperatures to exceed 113°F [45°C].

UNIT AND SySTEM CHECKOUT

Unit and System Checkout BEFORE POWERING SYSTEM, please check the following:

UNIT CHECKOUT

8 Balancing/shutoff valves: Insure that all isolation

valves are open and water control valves are wired.

8 Line voltage and wiring: Verify that voltage is within

an acceptable range for the unit and wiring and fuses/ breakers are properly sized. Verify that low voltage wiring is complete.

8 Unit control transformer: Insure that transformer

has the properly selected voltage tap. Commercial 208-230V units are factory wired for 208V operation

unless specied otherwise.

8 Entering water and air: Insure that entering water and

air temperatures are within operating limits of Table 7.

8 Low water temperature cutout: Verify that low water

temperature cut-out on the CXM control is properly set.

8 Unit fan: Manually rotate fan to verify free rotation

and insure that blower wheel is secured to the motor shaft. Be sure to remove any shipping supports if needed. DO NOT oil motors upon start-up. Fan motors are pre-oiled at the factory. Check unit fan speed selection and compare to design requirements.

8 Condensate line: Verify that condensate line is open

and properly pitched toward drain.

8 Water ow balancing: Record inlet and outlet water

temperatures for each heat pump upon startup. This check can eliminate nuisance trip outs and high

velocity water ow that could erode heat exchangers.

8 Unit air coil and lters: Insure that lter is clean and

accessible. Clean air coil of all manufacturing oils.

8 Unit controls: Verify that CXM eld selection options

are properly set.

8 System ushing: Verify that all hoses are connected

end to end when ushing to insure that debris

bypasses the unit heat exchanger, water valves and other components. Water used in the system must be potable quality initially and clean of dirt, piping slag, and strong chemical cleaning agents. Verify that all air is purged from the system. Air in the system can cause poor operation or system corrosion.

8 Cooling tower/boiler: Check equipment for proper set

points and operation.

8 Standby pumps: Verify that the standby pump is

properly installed and in operating condition.

8 System controls: Verify that system controls function

and operate in the proper sequence.

8 Low water temperature cutout: Verify that low water

temperature cut-out controls are provided for the outdoor portion of the loop. Otherwise, operating problems may occur.

8 System control center: Verify that the control center

and alarm panel have appropriate set points and are operating as designed.

8 Miscellaneous: Note any questionable aspects of

the installation.

CAUTION!

CAUTION! Verify that ALL water control valves are open

and allow water ow prior to engaging the compressor.

Freezing of the coax or water lines can permanently damage the heat pump.

CAUTION!

CAUTION! To avoid equipment damage, DO NOT

leave system lled in a building without heat during the

winter unless antifreeze is added to the water loop. Heat exchangers never fully drain by themselves and will freeze unless winterized with antifreeze.

NOTICE! Failure to remove shipping brackets from springmounted compressors will cause excessive noise, and could cause component failure due to added vibration.

SySTEM CHECKOUT

8 System water temperature: Check water temperature

for proper range and also verify heating and cooling set points for proper operation.

8 System pH: Check and adjust water pH if necessary

to maintain a level between 6 and 8.5. Proper pH

promotes longevity of hoses and ttings (see table 3).

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Unit Start-Up Procedure

Unit Start-up Procedure

1. Turn the thermostat fan position to “ON”. Blower should start.

2. Balance air ow at registers.

3. Adjust all valves to their full open positions. Turn on the line power to all heat pumps.

4. Room temperature should be within the minimummaximum ranges of table 6. During start-up checks, loop water temperature entering the heat pump should be between 60°F [16°C] and 95°F [35°C].

5. Two factors determine the operating limits of Heat Controller heat pumps, (a) return air temperature, and (b) water temperature. When any one of these factors is at a minimum or maximum level, the other factor must be at normal level to insure proper unit operation.

a. Adjust the unit thermostat to the warmest setting.

Place the thermostat mode switch in the “COOL” position. Slowly reduce thermostat setting until the compressor activates.

b. Check for cool air delivery at the unit grille within a

few minutes after the unit has begun to operate.

Note: Units have a ve minute time delay in the

control circuit that can be eliminated on the CXM control board as shown below in Figure 23. See controls description for details.

c. Verify that the compressor is on and that the water

ow rate is correct by measuring pressure drop

through the heat exchanger using the P/T plugs and comparing to tables 10.

d. Check the elevation and cleanliness of the

condensate lines. Dripping may be a sign of a blocked line. Check that the condensate trap is

lled to provide a water seal.

e. Refer to table 9. Check the temperature of both

entering and leaving water. If temperature is within range, proceed with the test. If temperature is outside of the operating range, check refrigerant pressures and compare to tables 8a through

8d. Verify correct water ow by comparing unit

pressure drop across the heat exchanger versus the data in tables 7. Heat of rejection (HR) can be calculated and compared to submittal data capacity pages. The formula for HR for systems with water is as follows: HR (Btuh) = TD x GPM x 500, where TD is the temperature difference between the entering and

leaving water, and GPM is the ow rate in U.S.

GPM, determined by comparing the pressure drop across the heat exchanger to table 7. In S.I. units, the formula is as follows: HR (kW) = TD x l/s x

4.18.

Check air temperature drop across the air coil when compressor is operating. Air temperature drop should be between 15°F and 25°F [8°C and 14°C].

g. Turn thermostat to “OFF” position. A hissing noise

indicates proper functioning of the reversing valve.

6. Allow ve (5) minutes between tests for pressure to

equalize before beginning heating test.

a. Adjust the thermostat to the lowest setting. Place

the thermostat mode switch in the “HEAT” position.

b. Slowly raise the thermostat to a higher

temperature until the compressor activates.

c. Check for warm air delivery within a few minutes

after the unit has begun to operate.

Refer to table 9. Check the temperature of both entering and leaving water. If temperature is within range, proceed with the test. If temperature is outside of the operating range, check refrigerant pressures and compare to tables 8a through 8d. Verify correct

water ow by comparing unit pressure drop across the

heat exchanger versus the data in tables 8a through 8d. Heat of extraction (HE) can be calculated and compared to submittal data capacity pages. The formula for HE for systems with water is as follows:

HE (Btuh) = TD x GPM x 500, where TD is the

temperature difference between the entering and

leaving water, and GPM is the ow rate in U.S.

GPM, determined by comparing the pressure drop across the heat exchanger to tables 10a through 10e. In S.I. units, the formula is as follows: HE (kW) = TD x l/s x 4.18.

Check air temperature rise across the air coil when

compressor is operating. Air temperature rise should be between 20°F and 30°F [11°C and 17°C].

f. Check for vibration, noise, and water leaks.

If unit fails to operate, perform troubleshooting analysis (see troubleshooting section). If the check described fails to reveal the problem and the unit still does not operate, contact a trained service technician to insure proper diagnosis and repair of the equipment.

8. When testing is complete, set system to maintain desired comfort level.

BE CERTAIN TO FILL OUT AND FORWARD ALL WARRANTY REGISTRATION PAPERS TO HEAT CONTROLLER.

Note: If performance during any mode appears abnormal, refer to the CXM section or troubleshooting section of this manual. To obtain maximum performance, the air coil should be cleaned before start-up. A 10% solution of dishwasher detergent and water is recommended.

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Unit Start-Up Procedure

Figure 23: Test Mode Pins

Short test pins together to enter Test Mode and speedup timing and delays for 20 minutes.

UNIT OPERATING CONDITIONS

Table 7: HB Coax Water Pressure Drop

Model

006

009

012

015

018

024

030

036

042

048

060

U.S.

GPM

0.75 0.05 0.5 (3.7) 0.3 (2.3) 0.2 (1.6) 0.2 (1.6)

1.1 0.07 0.8 (5.3) 0.5 (3.5) 0.4 (2.7) 0.3 (2.2)

1.5 0.09 1.3 (8.8) 0.9 (6.1) 0.7 (4.8) 0.6 (4.0)

1.1 0.07 1.3 (9.0) 0.6 (4.4) 0.4 (2.8) 0.3 (1.9)

1.8 0.11 2.1 (14.1) 1.4 (9.4) 1.1 (7.4) 0.9 (6.2)

2.3 0.14 3.5 (24.3) 2.6 (17.9) 2.1 (14.7) 1.8 (12.7)

1.5 0.09 1.9 (12.8) 1.1 (7.6) 0.8 (5.3) 0.6 (4.1)

2.3 0.15 3.6 (25.0) 2.6 (17.8) 2.1 (14.3) 1.8 (12.1)

3.0 0.19 6.7 (46.1) 5.0 (34.3) 4.1 (28.3) 3.6 (24.5)

1.9 0.12 1.0 (6.9) 0.6 (4.4) 0.5 (3.4) 0.4 (2.8)

2.8 0.18 1.8 (12.4) 1.4 (9.3) 1.1 (7.6) 1.0 (6.9)

3.8 0.24 3.3 (22.7) 2.5 (17.5) 2.1 (14.7) 1.9 (13.1)

2.3 0.14 2.1 (14.5) 1.4 (9.9) 1.1 (7.6) 0.9 (6.2)

3.4 0.21 3.4 (23.4) 2.6 (17.6) 2.1 (14.7) 1.8 (12.4)

4.5 0.28 5.9 (40.6) 4.6 (31.5) 3.9 (26.9) 3.4 (23.4)

3.0 0.19 2.2 (15.2) 1.7 (11.6) 1.4 (9.6) 1.2 (8.3)

4.5 0.28 4.0 (27.6) 3.2 (22.2) 2.8 (19.3) 2.5 (17.2)

6.0 0.38 7.2 (49.6) 5.9 (40.6) 5.2 (35.8) 4.7 (32.4)

3.8 0.24 1.3 (9.0) 0.9 (6.1) 0.7 (4.8) 0.6 (4.1)

5.6 0.35 2.3 (15.8) 1.8 (12.5) 1.5 (10.3) 1.4 (9.6)

7.5 0.47 4.2 (28.9) 3.4 (23.2) 2.9 (20) 2.6 (17.9)

4.5 0.28 1.8 (12.4) 1.4 (9.6) 1.2 (8.3) 1.0 (6.9)

6.8 0.43 3.1 (21.4) 2.4 (16.8) 2.1 (14.7) 1.9 (13.1)

9.0 0.57 5.4 (37.2) 4.4 (30.0) 3.8 (26.2) 3.4 (23.4)

5.3 0.33 2.3 (15.8) 1.8 (12.1) 1.5 (10.3) 1.3 (9.0)

7.9 0.50 4.3 (29.6) 3.5 (24.2) 3.1 (26.4) 2.8 (19.3)

10.5 0.66 7.9 (54.4) 6.5 (44.8) 5.7 (39.3) 5.2 (35.8)

6.0 .038 1.8 (12.4) 1.5 (10.1) 1.3 (9.0) 1.2 (8.3)

9.0 0.57 3.4 (23.4) 3.0 (20.4) 2.7 (18.6) 2.6 (17.9)

12.0 0.76 6.2 (42.7) 5.5 (37.9) 5.1 (35.1) 4.8 (35.1)

7.5 0.47 3.4 (23.4) 2.8 (19.2) 2.4 (16.5) 2.2 (15.2)

11.3 0.71 6.8 (46.9) 5.9 (40.8) 5.4 (37.2) 5.0 (34.5)

15.0 0.95 12.6 (86.8) 11.1 (76.8) 10.3 (71.0) 9.6 (66.1)

l/s

30°F [-1°C] 50°F [10°C] 70°F [21°C] 90°F [32°C]

WARNING! When the disconnect switch is closed, high voltage is present in some areas of the electrical panel. Exercise caution when working with energized equipment.

CAUTION! Verify that ALL water control valves are open and

allow water ow prior to engaging the compressor. Freezing

of the coax or water lines can permanently damage the heat pump.

Pressure Drop, psi [kPa]*

WARNING!

CAUTION!

*Note: To convert kPa to millibars, multiply by 10.

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Unit Operating Pressures and Temperatures

Operating Pressure/Temperature tables include the

following notes:

• Airow is at nominal (rated) conditions;

• Entering air is based upon 70°F [21°C] DB in heating

and 80/67°F [27/19°C] in cooling;

• Subcooling is based upon head pressure at compressor

service port;

• Cooling air and water values can vary greatly with

changes in humidity level.

Table 8a: HB Series Typical Unit Operating Pressures and Temperatures (60 Hz-I.P. Units)

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Unit Operating Pressures and Temperatures

Table 8b: HB Series Typical Unit Operating Pressures and Temperatures (60 Hz-I.P. Units)

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Unit Operating Pressures and Temperatures

Table 8c: HB Series Typical Unit Operating Pressures and Temperatures (60 Hz-I.P. Units)

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Unit Operating Pressures and Temperatures

Table 8d: HB Series Typical Unit Operating Pressures and Temperatures (60 Hz-I.P. Units)

Table 9: Water Temperature Change Through Heat Exchanger

Water Flow, gpm [l/m]

For Closed Loop: Ground Source or

Closed Loop Systems at 3 gpm per

ton [3.2 l/m per kW]

For Open Loop: Ground Water

Systems at 1.5 gpm per ton

[1.6 l/m per kW]

Rise, Cooling

°F, [°C]

9 - 12

[5 - 6.7]

20 - 26

[11.1 - 14.4]

Drop, Heating

°F, [°C]

4 - 8

[2.2 - 4.4]

10 - 17

[5.6 - 9.4]

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Preventive Maintenance

Water Coil Maintenance

(Direct ground water applications only) If the system is installed in an area with a known high mineral content (125 P.P.M. or greater) in the water, it is best to establish a periodic maintenance schedule with the owner so the coil can be checked regularly. Consult the well water applications section of this manual for a more detailed water coil material selection. Should periodic coil cleaning be necessary, use standard coil cleaning procedures, which are compatible with the heat exchanger material and copper water lines. Generally,

the more water owing through the unit, the less chance

for scaling. Therefore, 1.5 gpm per ton [1.6 l/m per kW]

is recommended as a minimum ow. Minimum ow rate

for entering water temperatures below 50°F [10°C] is 2.0 gpm per ton [2.2 l/m per kW].

Water Coil Maintenance

(All other water loop applications) Generally water coil maintenance is not needed for closed loop systems. However, if the piping is known to have high dirt or debris content, it is best to establish a periodic maintenance schedule with the owner so the water coil can be checked regularly. Dirty installations are typically the result of deterioration of iron or galvanized piping or components in the system. Open cooling towers requiring heavy chemical treatment and mineral buildup through water use can also contribute to higher maintenance. Should periodic coil cleaning be necessary, use standard coil cleaning procedures, which are compatible with both the heat exchanger material and

copper water lines. Generally, the more water owing

through the unit, the less chance for scaling. However,

ow rates over 3 gpm per ton (3.9 l/m per kW) can

produce water (or debris) velocities that can erode the heat exchanger wall and ultimately produce leaks.

Filters

Filters must be clean to obtain maximum performance. Filters should be inspected every month under normal operating conditions and be replaced when necessary.

Units should never be operated without a lter.

Washable, high efciency, electrostatic lters, when dirty,

can exhibit a very high pressure drop for the fan motor

and reduce air ow, resulting in poor performance. It is

especially important to provide consistent washing of

these lters (in the opposite direction of the normal air ow) once per month using a high pressure wash similar

to those found at self-serve car washes.

Condensate Drain

In areas where airborne bacteria may produce a “slimy” substance in the drain pan, it may be necessary to treat the drain pan chemically with an algaecide approximately every three months to minimize the problem. The condensate pan may also need to be cleaned periodically to insure indoor air quality. The condensate drain can

pick up lint and dirt, especially with dirty lters. Inspect

the drain twice a year to avoid the possibility of plugging

and eventual overow.

Compressor

Conduct annual amperage checks to insure that amp draw is no more than 10% greater than indicated on the serial plate data.

Fan Motors

All units have lubricated fan motors. Fan motors should never be lubricated unless obvious, dry operation is suspected. Periodic maintenance oiling is not recommended, as it will result in dirt accumulating in the excess oil and cause eventual motor failure. Conduct annual dry operation check and amperage check to insure amp draw is no more than 10% greater than indicated on serial plate data.

Air Coil

The air coil must be cleaned to obtain maximum performance. Check once a year under normal operating conditions and, if dirty, brush or vacuum clean. Care must

be taken not to damage the aluminum ns while cleaning.

CAUTION: Fin edges are sharp.

Cabinet

Do not allow water to stay in contact with the cabinet for long periods of time to prevent corrosion of the cabinet sheet metal. Generally, vertical cabinets are set up from

the oor a few inches [7 - 8 cm] to prevent water from

entering the cabinet. The cabinet can be cleaned using a mild detergent.

Refrigerant System

To maintain sealed circuit integrity, do not install service gauges unless unit operation appears abnormal. Reference the operating charts for pressures and

temperatures. Verify that air and water ow rates are at

proper levels before servicing the refrigerant circuit.

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Fault Htg Clg Possible Cause Solution Main power Problems X X Green Status LED Off Check Line Voltage circuit breaker and disconnect

Check for line voltage between L1 and L2 on the contactor Check for 24VAC between R and C on CXM/DXM

Check primary/secondary voltage on transformer HP Fault-Code 2 X Reduced or no water flow Check pump operation or valve operation/setting High pressure in cooling

Check water flow adjust to proper flow rate

Water Temperature out of range in cooling

Bring water temp within design parameters

X Reduced or no Air flow Check for dirty air filter and clean or replace

in heating Check fan motor operation and airflow restrictions

Dirty Air Coil- construction dust etc.

Too high of external static. Check static vs blower table

Air Temperature out of range in heating

Bring return air temp within design parameters

X X

Overcharged with refrigerant

Check superheat/subcooling vs typical operating condition

table

X X

Bad HP Switch Check switch continuity and operation. Replace

LP/LOC Fault-Code 3 X X Insufficient charge Check for refrigerant leaks Low Pressure/Loss of Charge X

Compressor pump down at startup

Check charge and start-up water flow

FP1 Fault - Code 4 X Reduced or no water flow Check pump operation or water valve operation/setting Water Coil low

temperature limit

in heating Plugged strainer or filter. Clean or replace.

Check water flow adjust to proper flow rate

X Inadequate anti-freeze level Check antifreeze density with hydrometer X

Improper temperature limit setting (30°F vs 10°F [-1°C vs -12°C])

Clip JW3 jumper for antifreeze (10°F [-12°C]) use

X Water Temperature out of range Bring water temp within design parameters X X Bad thermistor Check temp and impedance correlation per chart

FP2 fault - Code 5 X Reduced or no Air flow Check for dirty air filter and clean or replace Air Coil low

temperature limit

in cooling Check fan motor operation and airflow restrictions

Too high of external static. Check static vs blower table

X Air Temperature out of range

Too much cold vent air? Bring entering air temp within

design parameters

Improper temperature limit setting (30°F vs 10°F [-1°C vs -12°C])

Normal airside applications will require 30°F [-1°C] only

X X Bad thermistor Check temp and impedance correlation per chart

Condensate Fault-Code

X X Blocked Drain Check for blockage and clean drain X X Improper trap Check trap dimensions and location ahead of vent

X Poor Drainage Check for piping slope away from unit

Check slope of unit toward outlet

Poor venting. Check vent location

X Moisture on sensor Check for moisture shorting to air coil

Over/Under VoltageCode 7

X X Under Voltage

Check power supply and 24VAC voltage before and during

operation. (Auto resetting) Check power supply wire size

Check compressor starting. Need hard start kit?

Check 24VAC and unit transformer tap for correct power

supply voltage

X X

Over Voltage

Check power supply voltage and 24VAC before and during

operation.

Check 24VAC and unit transformer tap for correct power

supply voltage

Unit Performance Sentinel-Code 8

X Heating mode FP2>125°F [52°C] Check for poor air flow or overcharged unit.

Cooling Mode FP1>125°F [52°C]

OR FP2< 40ϒF [4ϒC]

Check for poor water flow, or air flow No Fault Code Shown X X No compressor operation See "Only fan operates"

X X Compressor Overload Check and Replace if necessary X X Control board Reset power and check operation

Unit Short Cycles X X Dirty Air Filter Check and Clean air filter

X X Unit in "Test Mode" Reset power or wait 20 minutes for auto exit. X X Unit selection

Unit may be oversized for space. Check sizing for actual

load of space.

X X Compressor Overload Check and Replace if necessary

Only Fan Runs X X Thermostat position Insure thermostat set for heating or cooling operation

X X Unit locked out Check for lockout codes. Reset power. X X Compressor Overload Check compressor overload. Replace if necessary.

X X Thermostat wiring

Check thermostat wiring at heat pump. Jumper Y and R

for compressor operation in test mode.

Functional Troubleshooting

Heat Controller, Inc. HBH/V CompaCt IOM Instructions

Functional Troubleshooting

Only Compressor Runs X X Thermostat wiring

X X Fan motor relay

X X Fan motor Check for line voltage at motor. Check capacitor X X Thermostat wiring

Unit Doesn't Operate in Cooling

X Reversing Valve

X Thermostat setup Check for 'O' RV setup not 'B' X Thermostat wiring

Thermostat wiring

Check G wiring at heat pump. Jumper G and R for fan operation.

Jumper G and R for fan operation. Check for Line voltage across BR contacts.

Check fan power enable relay operation (if present)

Check thermostat wiring at heat pump. Jumper Y and R for compressor operation in test mode.

Set for cooling demand and check 24VAC on RV coil and at CXM/DXM board.

If RV is stuck, run high pressure up by reducing water flow and while operating engage and disengage RV coil voltage to push valve.

Check O wiring at heat pump. Jumper O and R for RV coil 'Click'. Put thermostat in cooling mode. Check for 24VAC on O

(check between C and O); check for 24VAC on W (check between W and C). There should be voltage on O, but not on W. If voltage is present on W, thermostat may be bad or wired incorrectly.

Performance Troubleshooting

Insufficient capacity/ X X Dirty Filter Replace or clean Not cooling or heating X Reduced or no Air flow Check for dirty air filter and clean or replace properly in heating Check fan motor operation and airflow restrictions

Htg Clg Possible Cause Solution

X Reduced or no Air flow Check for dirty air filter and clean or replace

in cooling Check fan motor operation and airflow restrictions

X X Leaky duct work X X Low refrigerant charge Check superheat and subcooling per chart

X X Restricted metering device Check superheat and subcooling per chart. Replace.

X Defective Reversing Valve Perform RV touch test

X X Thermostat improperly located Check location and for air drafts behind stat X X Unit undersized

X X Scaling in water heat exchanger Perform Scaling check and clean if necessary

Too high of external static. Check static vs blower table

Too high of external static. Check static vs blower table Check supply and return air temperatures at the unit and at distant duct registers if significantly different, duct leaks are present

Recheck loads & sizing check sensible clg load and heat pump capacity

X X Inlet Water too Hot or Cold Check load, loop sizing, loop backfill, ground moisture.

High Head Pressure X Reduced or no Air flow Check for dirty air filter and clean or replace

Low Suction Pressure X Reduced water flow Check pump operation or water valve operation/setting

Low discharge air temperature in heating

High humidity X Too high of air flow Check fan motor speed selection and airflow chart

in heating Check fan motor operation and airflow restrictions

Too high of external static. Check static vs blower table

X Reduced or no water flow Check pump operation or valve operation/setting

in cooling Check water flow adjust to proper flow rate

X Inlet Water too Hot Check load, loop sizing, loop backfill, ground moisture.

Air Temperature out of range in heating

X Scaling in water heat exchanger Perform Scaling check and clean if necessary X X Unit Overcharged Check superheat and subcooling. Reweigh in charge X X Non-condensables insystem Vacuum system and reweigh in charge X X Restricted metering device Check superheat and subcooling per chart. Replace.

in heating Plugged strainer or filter. Clean or replace.

X Water Temperature out of range Bring water temp within design parameters

X Reduced Air flow Check for dirty air filter and clean or replace

in cooling Check fan motor operation and airflow restrictions

X Air Temperature out of range X X Insufficient charge Check for refrigerant leaks

X Too high of air flow Check fan motor speed selection and airflow chart X Poor Performance See 'Insufficient Capacity'

X Unit oversized

Bring return air temp within design parameters

Check water flow adjust to proper flow rate

Too high of external static. Check static vs blower table Too much cold vent air? Bring entering air temp within design parameters

Recheck loads & sizing check sensible clg load and heat pump capacity

IOM Instructions HBH/V CompaCt Heat Controller, Inc.

Packaged Unit Refrigeration Schematic

Customer: _____________________________________

Antifreeze: ________________________

Model#: ________________________ Serial#: ________________ Loop type: _______________ Complaint: ________________________________________________________________________

Date: ________________________

Location: ________________________

Model Number: ________________________

Serial Number: ________________________

Refrigerant Circuit Diagrams

Functional Troubleshooting - I.P. Units

HEATING CYCLE ANALYSIS -

Refrigerant Type: R410A

AIR

COIL

°F °F

EXPANSION

VALVE

Voltage: ________

FILTER DRIER*

COAX

HWG

Comp Amps: _______ Total Amps: ________

°F

FP2: HEATING LIQUID LINE

FLASH

GAS LINE

°F

FP1

SENSOR

°F

°F °F

PSI PSI

WATER IN WATER OUT

Look up pressure drop in I.O.M. or spec. catalog to

PSI

°F

SUCTION

COMPRESSOR

DISCHARGE

°F

PSI

determine flow rate.

COOLING CYCLE ANALYSIS -

AIR

COIL

°F °F

PSI

°F

SUCTION

COMPRESSOR

SAT

°F

FILTER DRIER*

FP1: CLG

LIQ LINE

COAX

°F

°F °F

PSI PSI

WATER IN WATER OUT

DISCHARGE

HWG

°F

PSI

Look up pressure drop in

SAT

FP2: FLASH GAS LINE

EXPANSION

VALVE

°F

OTHER SIDE

OF FILTR DR

I.O.M. or spec. catalog to

determine flow rate.

Heat of Extraction (Absorption) or Heat of Rejection = ________ flow rate ( diff. ( factor = _____________

Superheat Subcooling

†

Use 500 for water, 485 for antifreeze.

= =

gpm) x ________ temp. deg. F) x ________ fluid

Suction temperature - suction saturation temp. Discharge saturation temp. - liquid line temp.

= =

†

(Btu/hr)

(deg F) (deg F)

Rev. 12/08

Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis

using P/T ports to determine water ow and temperature difference. If water-side analysis shows

poor performance, refrigerant troubleshooting may be required. Connect refrigerant gauges as a last resort.

01/2010

Heat Controller HBH015, HBH018, HBH024, HBH030, HBH036 Installation, Operation & Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual