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ES025

Bosch ES025, ES049, ES035, ES061, ES071 Installation And Maintenance Manual

ES Series Heat Pump
ES025 | ES035 | ES049 | ESO61 | ES071
Installation and Maintenance Manual
T111970-291 (01/2015)
2 | ES Series
CONTENTS
MOUNTING VERTICALLY...............................................5
MOUNTING HORIZONTALY............................................ 5
HANGING BRACKET KIT.................................................6
ECM INTERFACE BOARD............................................... 9
UPM Sequence of Operation.........................................14
Operating temperatures and Pressures..............................30
Water Tank Preparation: .............................................16
HR Water Piping ........................................................ 16
Initial Start-Up........................................................... 17
Hot Gas Reheat (HGRH)..............................................17
Cooling Mode ............................................................18
Heating Mode............................................................18
Application considerations............................................... 18
Well Water Systems ................................................... 18
Geothermal (Earth-Coupled) Systems ..........................21
System Checkout.............................................................22
Customer Data ..........................................................24
Unit Nameplate Data .................................................. 24
Operating Conditions ................................................. 24
Auxiliary Heat............................................................24
ES SeriesT111970291 (2015/01) Subject to change without prior notice
MODEL NOMENCLATURE
y
Model Nomenclature | 3ES Series
1XX XXSBA
X
1 - 100 VA
Economizer
P - DDC - Multi-Protocol (BacNET, Modbus, N2) w/ Expander
O - Carrier Open
C - Hot Gas Bypass with Hot Gas Reheat
C - Compressor Monitor Rel ay
G - Boilerless control
N - Comfort Alert
Z - EMS relay + Pump/Valve Relay
ES 25- 1VTC -F L T T U A - XXSAMXXXX 5A X X
049 S - Standard
061 A - Special #1
025
ES Code String Rev Level
Size B - Bosch
071 B - Special #2
035 Standard/Special
Voltage AIR FILTRATION
2 277/60/1 4 - MERV8 - 2" w/ 2" 4-SIDED FILTER RACK
3 208-230/60/3 5 - MERV13 - 2" w/ 2" 4-SIDED FILTER RACK
4 460/60/3
1 208-230/60/1 3 - STANDARD THROWAWAY FILTER w/ 2" 4-SIDED FILTER RACK
Cabinet Conguration X - None
Fiberglass Application
F - G90 Steel / 1/2" Cl osed Cell Foam, Extra Quiet
D - G90 Steel / 1/2" Standard 1.5LB Dual Density Fiberglass, Extra Quiet
D - 15 kW
A - 5 kW K - Fire Alarm Relay/Dual Power
E - 20 kW X - As default for non used electrical codes
C - 10 kW M - Wire to 208 V
L - Left Transformer
HZ - Horizontal E - Economizer With 3 Way Valve and Controls
VT - Vertical
CF - Downow (Count erow) X - None
C - Copper X - Standard
N - Cupro-Nickel M - DDC - Multi-Protocol (BacNET, Modbus, N2)
Coax Options Controls
F - Front G - DDC - LonWorks w/ Expander
Water Connections L - DDC - LonWorks
R - Right 7 - 75 VA
T - Top Refrigeration Circu it Options
S - Straight X - None
E - End H - Hot Gas Reheat - On/O
Return Air Conguration
Discharge Air Conguration
B - Bottom B - Hot Gas Bypass
Air Coil General Electrical Options (up to 5 available per unit)
A - Constant Airow ECM S - Straight Cool
Fan/Motor Options D - Heat Recovery Package
ion Level D - Phase Monitor
U - Uncoated A - EMS relay
T - Tin Plated B - Blower Monitor Relay
Revis
X - None J - Disconnect Switch
A - Current E - Pump/val ve relay
Electric Heat (Du al Power Connection) H - Flow proving switch
C - G90 Steel / 1/2" Cl osed Cell Foam G - EXTENDED RANGE W/ SCHRADER VALVE (Geothermal)
A - G90 Steel / 1/2" S tandard 1.5LB Dual Densi t
Cabinet Construction
Figure # 1
T111970291 (2015/01)ES Series
4 | Initial Inspection ES Series
WARNING: Installation and servicing of this
equipment can be hazardous due to system pressure and electrical components. Only trained and qualified personnel should install, repair, or service the equipment.
WARNING: Before performing service or maintenance operations on the system, turn off main power to the unit. Electrical shock could cause personal injury or death.
CAUTION: When working on equipment, always observe precautions described in the literature, tags, and labels attached to the unit. Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing, and place a fire extinguisher close to the work area.
NOTE: 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.
NOTE: To avoid equipment damage, DO NOT use these units as a source of heating or cooling during the construction process. Doing so may affect the unit’s warranty. The mechanical components and filters will quickly become clogged with construction dirt and debris, which may cause system damage.
INITIAL INSPECTION
1
2
3
Figure # 2
[1] ES Series Water-to-Air Heat Pump [2] Installation and Operation Manual [3] Hanging Bracket kit (HZ unit only)
Be certain to inspect all cartons or crates on each unit as received at the job site before signing the freight bill. Verify that all items have been received and that there are no visible damages; note any shortages or damages on all copies of the freight bill. In the event of damage or shortage, remember that the purchaser is responsible for filing the necessary claims with the carrier. Concealed damages not discovered until after removing the units from the packaging must be reported to the carrier within 24 hours of receipt.
GENERAL DESCRIPTION
ES Series Water-to-Air Heat Pumps provide the best combination of performance and efficiency
available. Safety devices are built into each unit to provide the maximum system protection possible
when properly installed and maintained.
NOTE: 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 proficiency requirements.
All ES water to Air Heat Pumps conform to UL1995 standard and are certified to CAN/CSA C22.2 No 236 by Intertek-ETL.The Water-to-Air Heat Pumps are designed to operate with entering fluid temperature between 20°F to 90°F in the heating mode and between 30°F to 120°F in the cooling mode.
ES SeriesT111970291 (2015/01) Subject to change without prior notice
NOTE: 50° Minimum Entering Water Temperature (EWT) for well water applications with sufficient water flow to prevent freezing. Antifreeze solution is required for all closed loop applications. Cooling Tower/Boiler and Geothermal applications should have sufficient antifreeze solution to protect against extreme conditions and equipment failure. Frozen water coils are not covered under warranty.
NOTE: This product should not be used for temporarily
heating/cooling during construction. Doing
so may affect the units warranty.
MOVING AND STORAGE
If the equipment is not needed for immediate installation upon its arrival at the job site, it should be left in its shipping carton and stored in a clean, dry area. Units must only be stored or moved in the normal upright position as indicated by the “UP” arrows on each carton at all times.
For storage If unit stacking is required, stack units as follows:
Do not stack units larger than 6 tons.
Vertical units less than 6 tons, no more than two high.
Horizontals units less than 6 tons, no more than three high.
LOCATION
Locate the unit in an indoor area that allows easy removal of the filter and access panels, and has enough room for service personnel to perform maintenance or repair. Provide sufficient room to make fluid, electrical, and duct connection(s). If the unit is located in a confined space such as a closet, provisions must be made for return air to freely enter the face of unit’s air coil. On horizontal units, allow adequate room below the unit for a condensate drain trap and do not locate the unit above supply piping.
NOTE: These units are not approved for outdoor installation; therefore, they must be installed inside the structure being conditioned. Do not locate in areas that are subject to freezing.
Moving and Storage | 5ES Series
INSTALLATION
MOUNTING VERTICALLY
Vertical units up to six tons are available in left or right air return configurations. Vertical units
should be mounted level on a vibration absorbing pad slightly larger than the base to minimize vibration transmission to the building structure. It is not necessary to anchor the unit to the floor. (See Figure #3).
Figure # 3
MOUNTING HORIZONTALY
While horizontal units may be installed on any level surface strong enough to hold their weight, they are typically suspended above a ceiling by threaded rods. The rods are usually attached to the unit corners by hanger bracket kits
The rods must be securely anchored to the ceiling. Refer to the hanging bracket assembly and installation instructions for details. Horizontal units installed above the ceiling must conform to all local codes. An auxiliary drain pan if required by code, should be at least four inches larger than the bottom of the heat pump.
Some applications require an attic floor installation of the horizontal unit. In this case the unit should be set in a full size secondary drain pan on top of a vibration absorbing mesh. The secondary drain pan prevents possible condensate overflow or water leakage damage to the ceiling. The secondary drain pan is usually placed on a plywood base isolated from the ceiling joists by additional layers of vibration absorbing mesh. In both cases, a 3/4” drain connected to this secondary pan should be run to an eave at a location that will be noticeable.
T111970291 (2015/01)ES Series
6 | Hanging Bracket Kit ES Series
2. Mount 4 Brackets to unit corner post using the
NOTE: IF unit is located in a crawl space, the bottom of the unit MUST be at least 4” above grade to prevent flooding of the electrical parts due to heavy rains.
bolts provided in the kit as shown on Figure#6.
WARNING: Do not re-use screws removed from the unit on step 1 to mount the Hanging brackets to the unit.
HANGING BRACKET KIT
Installation instructions
All horizontal units come with Hanging Bracket Kit facilitate suspended unit mounting using threaded rod. Hanging brackets are to be installed as shown in Figure#4.
Figure # 6
Figure # 4
This Kit includes the following: (5) Brackets (5) Rubber Vibration isolators (8) Screws #10x1/2 (10) Bolts 1/4-28x12” Hex Bolt (not used for these
models) The following are needed and are to be field
provided: Threaded rod (3/8” max dia) Hex Nuts Washers (1-3/4” min O.D.)
1. Remove and discard factory provided screws from locations where hanging brackets will be installed shown in Figure# 5.
WARNING: Follow all applicable codes and requirements when hanging this unit, selecting threaded rod material, etc.
3. Install rubber grommet onto the Brackets as shown in Figure#7.
4. Hang the unit and assemble the field provided threaded rod, nuts and washers on to the brackets as shown in Figure#7
WARNING: Rods must be securely anchored to the ceiling.
Figure # 5
Figure # 7
NOTE: Plumbing connected to the heat
pump must not come in direct contact with joists, trusses, walls, etc.
ES SeriesT111970291 (2015/01) Subject to change without prior notice
CONDENSATE DRAIN | 7ES Series
CONDENSATE DRAIN
If equipped with float style condensate
overflow switch, final adjustment must be
made in the field.
A drain line must be connected to the heat pump and pitched away from the unit a minimum of 1/8” per foot to allow the condensate to flow away from the unit. This connection must be in conformance with local plumbing codes. A trap must be installed in the condensate line to insure free condensate flow. (Heat Pumps are not internally trapped). A vertical air vent is sometimes required to avoid
air pockets.(See Figure #5). The length of the trap depends on the amount of
positive or negative pressure on the drain pan. A second trap must not be included.
DUCT SYSTEM
Supply air duct and return air duct flanges are shipped unfolded with unit.
A supply air outlet collar and return air duct flange are provided on all units to facilitate duct connections. Fold the duct flange outwards along
the perforated line. Refer to unit Dimensional Drawings for physical dimensions of the collar and flange. (Pg#17 through Pg#20)
A flexible connector is recommended for supply and return air duct connections on metal duct systems. All metal ducting should be insulated with a minimum of one inch duct insulation to avoid heat loss or gain and prevent condensate forming during the cooling operation.
NOTE: Application of the unit to no insulated duct work is not recommended as the unit’s performance will be adversely affected.
Figure # 8
The horizontal unit should be pitched approximately 1/4” towards the drain in both directions, to facilitate condensate removal. (See Figure #6)
Figure # 9
NOTE: The factory provided air filter must be removed when using a filter back return air grill. The factory filter should be left in place on a free return system
NOTE: Do not connect discharge ducts directly to the blower outlet.
If the unit will be installed in a new installation which includes new duct work, the installation should be designed using current ASHRAE procedures for duct sizing.
If the unit is to be connected to existing duct work, a check should be made to assure that the duct system has the capacity to handle the air required for the unit application. If the duct system is too small, larger duct work should be installed. Check for existing leaks and repair.
The duct system and all diffusers should be sized to handle the designed air flow quietly. To maximize sound attenuation of the unit blower, the supply and return air plenums should be insulated. There should be no direct straight air path thru the return air grille into the heat pump.
T111970291 (2015/01)ES Series
8 | Piping ES Series
The return air inlet to the heat pump must have at least one 90 degree turn away from the space return air grille.
If air noise or excessive air flow are a problem, the blower speed can be changed to a lower speed to reduce air flow.
(Refer to ECM motor interface board section in this manual and Table#1)
PIPING
Supply and return piping must be as large as the unit connections on the heat pump (larger on long runs).
NOTE: Never use flexible hoses of a smaller inside diameter than that of the fluid connections on the unit.
ES units are supplied with either a copper or optional cupro-nickel condenser. Copper is adequate for ground water that is not high in mineral content.
NOTE: Proper testing is recommended to assure the well water quality is suitable for use with water source equipment.
In conditions anticipating moderate scale formation or in brackish water a cupro-nickel heat exchanger is recommended.
NOTE: Do not overtighten the connections.
Flexible hoses should be used between the unit and the rigid system to avoid possible vibration. Ball valves should be installed in the supply and return lines for unit isolation and unit water flow balancing.
ELECTRICAL
Refer to electrical component box layout. (Figure#7)
WARNING: Field wiring must comply with local and national electric codes.
WARNING: Power to the unit must be within the operating voltage range indicated on the unit nameplate or on the performance data sheet.
WARNING: Operation of unit on improper line voltage or with excessive phase imbalance will be hazardous to the unit, constitutes abuse and may void the warranty.
NOTE: Both the supply and discharge water lines will sweat if subjected to low water temperature. These lines should be insulated to prevent damage from condensation.
All manual flow valves used in the system must be ball valves. Globe and gate valves must not be used due to high pressure drop and poor throttling characteristics.
NOTE: Never exceed the recommended water flow rates as serious damage or erosion of the water-to-refrigerant heat exchanger could occur.
Always check carefully for water leaks and repair appropriately. Units are equipped with female pipe thread fittings. Consult Unit Dimensional Drawings. (Pg#17 through Pg#20)
NOTE: Teflon tape sealer should be used when connecting water piping connections to the units to insure against leaks and possible heat exchanger fouling.
Properly sized fuses or HACR circuit breakers must be installed for branch circuit protection. See unit nameplate for maximum fuse or breaker size.
The unit is provided with a concentric knock-out for attaching common trade sizes of conduit, route power supply wiring through this opening. Always connect the ground lead to the grounding lug provided in the control box and power leads to the line side of compressor contactor as indicated on the wiring diagram and Figure #5.
NOTE: Units supplied with internal electric heat require two (2) separate power supplies:
1) Unit compressor
2) Electric Heat, blower motor and control circuit.
NOTE: Refer to the ELECTRIC HEATER PACKAGE OPTION section and Figure # 11 for wiring diagrams. See data plate for minimum circuit ampacities and maximum fuse/breaker sizing.
ES SeriesT111970291 (2015/01) Subject to change without prior notice
Thermostat Connections | 9ES Series
THERMOSTAT CONNECTIONS
Thermostat wiring is connected to the 10 pin screw type terminal block on the lower center portion of the ECM Interface Board. In addition to providing a connecting point for thermostat wiring, the interface board also translates thermostat inputs into control commands for the Electronic Commutated Motor (ECM) DC fan motor and displays an LED indication of operating status. The thermostat connections and their functions are as follows:
Y1 First Stage Compressor Operation
Y2 Second Stage Compressor Operation
G Fan
O Reversing Valve (energized in cooling)
W1 Auxiliary Electric Heat (runs in
conjunction with compressor)
EM/W2 Emergency Heat (electric heat only)
Figure # 10
ECM INTERFACE BOARD
Figure # 11
NC Transformer 24 VAC Common (extra
connection)
C1 Transformer 24 VAC Common
(primary connection)
R Transformer 24 VAC Hot
HUM Dehumidification Mode (not used in
ES Series)
If the unit is being connected to a thermostat with a malfunction light, this connection is made at the unit malfunction output or relay.
If the thermostat is provided with a malfunction light powered off of the common (C) side of the transformer, a jumper between “R” and “COM” terminal of the “ALR” contacts must be made.
If the thermostat is provided with a malfunction light powered off of the hot (R) side of the transformer, then the thermostat malfunction light should be connected directly to the (ALR) contact on the unit’s UPM board.
To the left of the thermostat connection block are a row of 2 red and 4 green LED’s. These LED’s indicate the operating status of the unit. They are labeled as follows:
T111970291 (2015/01)ES Series
10 | Thermostat Connections ES Series
The TEST position is used to verify proper motor
EM (Red) Emergency Heat On
operation. If a motor problem is suspected, move the ADJ jumper to the TEST position and energize
W1 (Red Auxiliary Heat On
G on the thermostat connection block. If the motor ramps up to 100% power, then the motor itself is
O (Green) Reversing Valve Energized, unit is
in Cooling Mode
Y2
Second Stage Compressor On
functioning normally. Always remember to replaES the jumper to NORM, (+) or (-) after testing and reset the unit thermostat to restore normal operation.
(Green)
Y1
First Stage Compressor On
(Green)
G (Green) Fan On
Just above the connector block is a single red LED labeled CFM that will blink intermittently when the unit is running and may flicker when the unit is off.
This LED indicates the air delivery of the blower at any given time. Each blink of the LED represent approximately 100 CFM of air delivery so if the LED blinks 12 times, pauses, blinks 12 times, etc. the blower is delivering approximately 1200 CFM. Refer to Figure #9 for factory programmed air delivery settings for the ES Series.
To the right of the thermostat connection block is a green LED labeled dehumidify.
Just above and to the right of the thermostat connection block are four sets of jumper pins labeled ADJ, DELAY, HEAT and COOL. The ADJ set of pins are labeled NORM, (+), (-) and TEST. ES units will all be set on the NORM position from the factory, however, airflow can be increased (+) or decreased (-) by 15% from the pre-programmed setting by relocating the jumper in this section.
Do not set the ADJ DIP switch to the (-) setting when electric heaters are installed. Doing so may cause the heaters to cycle on their thermal overload switches, potentially shortening the life of the switches.
The other DIP switch bank is used to select the proper program in the ECM motor for the unit. Refer to Figure #7 for the proper jumper placement.
WARNING: Always disconnect power before changing jumper positions on the interface board and reset the unit afterward.
WARNING: Remember to always turn off unit power at the circuit breaker before attaching or disconnecting any wiring from these connections to avoid accidental short circuits that can damage unit control components.
To the left of the red and green status LED’s is a row of 1/4” male quick connects. These are used to pass thermostat inputs on to the rest of the control circuit.
Heater
Model
ES025 450 500 800 800 800 900 700 A
ES035 700 800 1200 1200 1200 1400 1000 A
ES049 900 1000 1600 1600 1600 1800 1400 B
ES061 1200 1400 2000 2000 2000 2100 1900 A
ES071 1600 1600 2200 2200 2200 2300 1900 A
Fan
Only
Y1
Cool/
Heat
Figure # 12 Motor Profile Air Flow CFM Two Stage Units
Cool/
Y2
Heat
AUX
Heat
EMERG
Heat
PLUS
Adj
MINUS
Adj
TAP
COOL/
HEAT/
DELAY
ES SeriesT111970291 (2015/01) Subject to change without prior notice
Safety Devices and the UPM Controller | 11ES Series
SAFETY DEVICES AND THE UPM CONTROLLER
11
1213
1
2
3
4
5
6
[1] Board power indicator [2] UPM Board LED indicator [3] Water coil freeze protection temperature
selection [4] Air coil freeze protection temperature selection [5] UPM board settings [6] Water coil freeze connection [7] Air coil freeze connection [8] LCD connection [9] 24VAC power hot [10] To compressor contactor [11] High pressure switch connection [12] Call for compressor [13] Low pressure switch connection [14] 24VAC power common
NOTE: If the unit is being connected to a thermostat with a malfunction light, this connection is made at the unit malfunction output or relay.
78
Figure # 13
10
9
• High pressure switch located in the refrigerant discharge line and wired across the HPC terminals on the UPM
• Low pressure switch located in the unit refrigerant suction line and wired across terminals LPC1 and LPC2 on the UPM.
UPM Board Dry Contacts are Normally Open (NO)
• Water side freeze protection sensor, mounted close to condensing water coil, monitors refrigerant temperature between condensing water coil and thermal expansion valve. If temperature drops below or remains at freeze limit trip for 30 seconds, the controller will shut down the compressor and enter into a soft lockout condition. The default freeze limit trip is 26°F, however this can be changed to 15°F by cutting the R42 resistor located on top of DIP switch SW1. (Figure #11)
•
Figure # 14
• The optional condensate overflow protection sensor (standard on horizontal units) is located in the drain pan of the unit and connected to the ‘COND’ terminal on the UPM board. (Figure #10)
UPM Board Factory Default Settings
TEMP
LOCKOUT
26°F
2
Each unit is factory provided with a Unit Protection Module (UPM) that controls the compressor
operation and monitors the safety controls that protect the unit.
Safety controls include the following:
RESET
ALARM
TEST
HOT/DRY ALARM
Y
PULSE
NO
NO
T111970291 (2015/01)ES Series
12 | Safety Devices and the UPM Controller ES Series
UPM DIP SWITCH DEFAULT POSITION
lockout 42
reset
alarm
test yes no
The UPM Board includes the following features:
• ANTI-SHORT CYCLE TIMER: 5 minute delay on
break timer to prevent compressor short cycling.
• RANDOM START: Each controller has an unique
random start delay ranging from 270 to 300 seconds on initial power up to reduce the chance of multiple unit simultaneously starting at the same time after power up or after a power interruption, thus avoiding creating large electrical spike.
• LOW PRESSURE BYPASS TIMER: If the
compressor is running and the low pressure switch opens, the controller will keep the compressor ON for 120 seconds. After 2 minutes if the low pressure switch remains open, the controllers will shut down the compressor and enter a soft lockout. The compressor will not be energized until the low pressure switch closes and the anti-short cycle time delay expires. If the low pressure switch opens 2-4 times in 1 hour, the unit will enter a hard lockout. In order to exit hard lockout, power to the unit would need to be reset.
• BROWNOUT/SURGE/POWER INTERRUPTION PROTECTION: The brownout
protection in the UPM board will shut down the compressor if the incoming power falls below 18 VAC. The compressor will remain OFF until the voltage is above 18 VAC and ANTI-SHORT CYCLE TIMER (300 seconds) times out. The unit will not go into a hard lockout and does not need to be reset.
• MALFUNCTION OUTPUT: Alarm output is
Normally Open (NO) dry contact.
selected the alarm output will be pulsed. The fault output will depend on the dip switch setting for “ALARM”. If it is set to “CONST”, a constant signal will be produced to indicate a fault has occurred and the unit requires inspection to determine the type of fault. If it is set to “PULSE”, a pulse signal is produced and a fault code is detected by a remote device indicating the fault. See L.E.D Fault Indication below for blink code explanation. The remote device must have a malfunction detection capability when the UPM board is set to “PULSE”.
RY
Cont pulse
If pulse is
If 24 VAC output is needed R must be wired to ALR-COM terminal; 24 VAC will be available o the ALR-OUT terminal when the unit is in the alarm condition.
• DISPLAY OUTPUT: The Display output is a pulse
output connected to the Unit Diagnostic Display (UDD) and it pulses 24VAC when the unit is in an lockout alarm condition.
• TEST DIP SWITCH: A test dip switch is provided
to reduce all time delays settings to 10 seconds during troubleshooting or verification of unit operation.
NOTE: Operation of unit in test mode can lead to accelerated wear and premature failure of components. The "TEST" switch must be set back to "NO" after troubleshooting/servicing.
• FREEZE SENSOR: The freeze sensor input is active all the time, if a freeze option it not selected the freeze terminals will need a jumper. There are two (2) configurable freeze points, 26°F & 15°F. The unit will enter a soft lock out until the temperature climbs above the set point and the anti-short cycle time delay has expired. The freeze sensor will shut the compressor output down after 90 seconds of water flow loss and report a freeze condition.
It is recommended to have a flow switch to prevent the unit from running if water fl ow is lost.
NOTE: If unit is employing a fresh water system (no anti-freeze protection), it is extremely important to have the Freeze1 R42 resistor set to 26°F in order to shut down the unit at the appropriate leaving water temperature and protect your heat pump from freezing if a freeze sensor is included.
ES SeriesT111970291 (2015/01) Subject to change without prior notice
• L.E.D. FAULT INDICATION: Two L.E.D. indicators are provided: Green: Power L.E.D. indicates 18-30 VAC present on board. Red: Fault indicator with the following blink codes; 1 - High Pressure Lockout 2 - Low Pressure Lockout 3 - Freeze Sensor Lockout 4 - Condensate Overflow 5 - Brownout
• INTELLIGENT RESET: If a fault condition is initiated, the 5 minute delay on break time period is initiated and the unit will restart after these delays expire. During this period the fault LED will indicate the cause of the fault. If the fault condition still exists or occurs 2 or 4 times (depending on 2 or 4 setting for Lockout dip switch) before 60 minutes, the unit will go into a hard lockout and requires a manual lockout reset. A single condensate overflow fault will cause the unit to go into a hard lockout immediately, and will require a manual lockout reset.
• LOCKOUT RESET: A hard lockout can be reset by turning the unit thermostat off and then back on when the “RESET” dip switch is set to “Y” or by shutting off unit power at the circuit breaker when the “RESET” dip switch is set to “R”.
Safety Devices and the UPM Controller | 13ES Series
The blower motor will remain active during a lockout condition.
NOTE: Always check incoming line voltage power supply and secondary control voltage for adequacy
T111970291 (2015/01)ES Series
14 | UPM Sequence of Operation ES Series
UPM SEQUENCE OF OPERATION
START
YES
Y1 = ON
NO
RESET ON
Y
NO
RESET ON R
R = 24VAC
YES
POWER/ SWITCHES/SENSOR
STATUS CHECK
V > 18VAC
NO
YES
HPC =
CLOSED
NO
YES
LPC
=CLOSED
NO
YES
FRZ >TEMP
LIMIT
NO
START TIMER
START TIMER
YES
CLEAR FAULTS
TIME > 120
NO
TIME > 30
BLINK CODE ON STATUS LED
SOFT LOCKOUT
RECORD ALARM
START COUNTER (IF APPLICABLE)
LOCKOUT CAN BE SET
TO 4 VIA DIP SWITCH
BLINK CODE
SEC
SEC
ON STATUS LED
YES
YES
NO
COUNTER NEEDED?
YES
COUNT = 2
OR
COUNT = 4
NO
YES
NO
HARD
LOCKOUT?
YES
BLINK CODE ON STATUS LED
DISPLAY OUTPUT = PULSE
ALR OUTPUT = ON/PULSE
NO
YES
CON > 0
YES
INITIAL
POWER UP
YES
NO
NO
NO
START
ANTI SHORT CYCLE
START
RANDOM START UP
NO
T > ASC OR
RS SEC
CC
LEGEND: HPC - HIGH PRESSURE CUTOUT LPC - LOW PRESSURE CUTOUT FRZ - FREEZE PROTECTION CONDITION CON - CONDENSATE OVERFLOW CONDITION CC - COMPRESSOR COIL
Figure # 15 UPM Sequence of Operation
CC OUTPUT = OFF
YES
CC OUTPUT = ON
ES SeriesT111970291 (2015/01) Subject to change without prior notice
Electric Heater Package Option | 15ES Series
ELECTRIC HEATER PACKAGE OPTION
WARNING: The HP series heater
package requires its own electrical service separate from the heat pump’s power supply. DO NOT attempt to wire the package into the same circuit as the heat pump.
Factory installed internal electric heater packages are available for ES Series units. Two power supplies are required when heater packages are utilized. The power supply for the heater package (located in the electric heater package control box) provides power for the heater elements, the blower motor and the control circuit for the unit. The power supply for the unit provides power for the compressor. This allows the electric heaters to continue to operate along with the blower motor in the case of unit compressor and/or compressor power supply failure.
Model
Heater
Model
KW Heater AMPS Circuit MCA Max. Fuse
Each ES Series model has a number of heater sizes available. Refer to Figure #13 for heater package compatibility with specific ES series units, model nomenclatures and electrical data.
NOTE: If heat recovery unit is installed in an area where freezing may occur, the unit must be drained during winter months to prevent heat exchanger damage. Heat exchanger ruptures that occur due to freezing will void the heat recovery package warranty along with the heat pump warranty.
AWG
Min.
208V 240V 208V 240V 208V 240V
ES025 thru 035 HP050-1XS 4.8 17.3 20.0 L1/L2 27.1 30.4 30 30 8
ES049 thru 071 HP050-1XM 4.8 17.3 20.0 L1/L2 27.1 30.4 30 30 8
ES049 thru 071 HP100-1XM 9.6 34.7 40.0 L1/L2 49.5 56.3 50 60 6
ES049 thru 071 HP150-1XM
HP150-1XM
ES049 thru 071 HP200-1XM
HP200-1XM
All heaters rated single phase 60Hz, and include unit fan load. All fuses type “D” time delay, HACR type breaker or
HRC FORM 1. Wire size based on 60 deg. C copper conductors.
14.4
14.4
19.2
19.2
Figure # 16 Heater Package Compatibility
52.0
34.7
17.3
69.3
34.7
34.7
60.0
40.0
20.0
80.0
40.0
40.0
SINGLE
L1/L2 L3/L4
SINGLE
L1/L2 L3/L4
71.2
49.5
21.7
92.9
49.5
43.4
81.3
56.3
25.0
106.3
56.3
50.0
80 60 25
100
50 45
90 60 25
110
60 50
4 6
10
2 6 6
T111970291 (2015/01)ES Series
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