Geyser C- SeriesAir Source Water Heaters

The Geyser C-Series Air Source product line is a High Efficiency Air-to-Water Heat Pump Water Heating System that efficiently heats water by drawing energy from the ambient air. This method saves up to 75% in costs when compared to electric water heaters.

While these units are heating water up to 160°F, they also provide cool air that can be used to offset air conditioning costs. This cooler/dehumidified air can be recirculated back into the immediate area or directed to a desired location.

The C-Series are designed and manufactured in our state of the art facility located in Brewer, Maine. These units use various options to meet your application needs. They are suitable for drinking water applications with the standard NSF 61 approved double wall heat exchanger.

Stainless SteelC250A

(Air Source)

How Our Units WorkOur Air Source Heat Pump Water Heaters capture heat and humidity from the surrounding air and transfers that heat energy into a storage tank. In basic terms, Heat Pump Water Heaters move heat from where it is not needed, to where it is desired. The Geyser C-Series provides low cost water heating and supplemental cooling that can be directed to where needed.

Suitable ApplicationOur Air Source Units range in capacity from 27,000 BTUH to 275,000 BTUH, generating from 50 to 500 gallons of hot water per hour. These units can heat water efficiently up to 160° F and are ideally suited for;

• Hotels / Apartment Buildings

• Restaurants• Laundry Facilities• Hospitals

• Schools/Dormitories

• Arenas/Gyms• Military Barracks• Office Buildings

The Geyser C-Series has a range of base model Heat Pump Water Heaters that can be customized to meet your application needs. Available options include, centrifugal blowers, programmable logic controllers, Building management systems integration hardware, 304 or 316 stainless steel cabinets, and multiple voltages available.

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Geyser C- SeriesAir Source Water Heaters

Key Features and Benefits

» Leaving water temperatures over 160° F allows for consistent tank temperatures.

» Typically operating at COP’s from 3.0 to 5.0, meaning it is expected to save 60% - 75% versus the costs of running an electric water heater.

» Can be connected to most storage tanks and water heaters, including: Electric, Oil, Natural Gas, Propane and Solar tanks.

» Single and Multi pass options are available for different system configurations.

» Low ambient air kits available for colder climates.

» Uses environmentally friendly R-134a refrigerant.

» Integrated NSF 61 approved Stainless Steel circulator pump included.

Air Source Product Comparison

ModelNumber

Water Flow Rate

(GPM)

PerformanceDimensions(L x W x H)Water Heating Cooling Combined

C.O.PBtu/hr C.O.P Btu/hr C.O.P

C25A 5.4 27,450 5.18 21,200 4.20 9.38 45” x 34” x 24 7/8”

C60A 13 63,225 5.05 48,425 4.13 9.18 64” x 30 3/4” x 34 5/8”

C90A 20 110,725 5.25 83,625 4.15 9.40 70” x 30 3/4” x 40 1/4”

C125A 28 144,275 4.93 108,500 3.98 8.90 93 1/8” x 32” x 36 1/8”

C185A 40 224,675 5.33 172,375 4.33 9.65 96 1/8” x 33 3/4” x 45 1/8”

C250A 50 272,450 4.58 218,000 3.88 8.45 84 1/2” x 55 3/8” x 67 3/4”

Performance rating based on* 75° F entering air temperature at 60% relative humidity * Water heated from 50°F to 150°F. Standard voltage on C25A &C60A models - 208/230 V, 1-phase, 60Hz.Standard voltage on C125A & C250A models - 208/230 V, 3-phase. 60Hz.Other power options are available upon request

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» Can be used as preheat system when higher temperatures are desired.

» Optional Programmable Logic Control (PLC) with BMS hardware allowing integration into your existing mechanical system.

» The air surrounding the unit is being cooled and dehumidified, reducing the load on air conditioning systems, further increasing the savings.

» The cooler, dehumidified air can be ducted to an alternate location by selecting the blower option.

» Painted aluminum as well as optional stainless steel cabinet provides superior protection against corrosion. Coated coils for further protection come standard.

Note: In view of ongoing product improvements, design and specification are subject to change without notice. Nyle can accept no responsibility for possible errors in catalogs, brochures or any other printed material.

* GPM reflects multi pass - single pass is lower

C250ASpecifications

Ope

rati

ng C

ondi

tion

s

Model Number C250A

Recovery Rate † 340 Gal/hr

Compressor Type Scroll

Refrigerant R134a

Max Water Temperature 160° F

Ambient Operating Range 40° F - 120° F

Max Working Water Pressure 100 psig

Mul

ti-P

ass

Uni

t Siz

ing Water Connections 2” FPT Copper

Water Flow Rate 50 GPM

Condenser Pressure Drop 18.48 ft Head

External Head Pressure Allowed by Unit 3.08 ft Head / 50 ft run of 2” pipe

Sin

gle-

Pas

sU

nit

Siz

ing Water Connections 1 1/2” FPT Copper

Average Water Flow Rate 25 GPM

Condenser Pressure Drop 4.93 ft Head

External Head Pressure Allowed by Unit 3.46 ft Head / 50 ft run of 1 1/2” pipe

Uni

t S

peci

fica

tion

s

Air Flow Rate 8,000 CFM

Dry Weight 2,100 lbs

Operating Weight 2,175 lbs

Model Dimensions(L x W x H)

Ext. Static Pressure ( in H2O) Standard Sound Rating

Axial 84 1/2" x 55 3/8" x 70 " N/A 64 dB

Blower 84 1/2" x 55 3/8" x 67 3/4" 1.52 65 dB

Pow

er R

equi

rem

ents

Voltage CompressorLRA

Total RLA † †

(Compressor + Fans)Wire and Disconnect Sizing † † †

MCA MCOP / MFS

Axial Blower Axial Blower Axial Blower

208-230/3/60 446 95.4 106.2 119 129 125 150

440-480/3/60 223 49.1 52.8 60 65 70 70

575/3/60 164 40.9 44.2 50 54 60 60

† Water heated from 50° F to 150° F with 75° F entering air temperature and 60 % relative humidity†† Axial fan is standard, high-static blower is optional.††† Single point electric service

LegendLRA: Locked Rotor AmpsRLA: Rated Load AmpsMCA: Maximum Current Ampacity (used for wire sizing)MOCP: Minimum Overcurrent Protection (minimum disconnect size to be used)

70 "

ELECTRICALPANEL

REFRIGERATIONACCESS PANEL

COMPRESSORACCESS PANEL

36"

36"

24"

36"

144 12 "

127 38 "

NOTE: FAN BLADE SHOWNFOR CLARITY

36 78 "

84 12 "

4 18 "

55 38 "

1 14 "

Dimensions

C250A - Axial Model

ELECTRICALPANEL

REFRIGERATIONACCESS PANEL

COMPRESSORACCESS PANEL

36"

36"

24"

36"

144 12 "

127 38 "

36 78 "

84 12 "

1 58 "

55 38 "

1 14 "

67 34 "

C250A - Blower Model

100000

150000

200000

250000

300000

350000

400000

30 40 50 60 70 80 90 100 110

Hea

ting

Capa

city

(Btu

/hr)

Air Temperature(°F)

Heating Capacity vs Air Temperature

60°F EWT

120°F EWT

90°F EWT

50000

100000

150000

200000

250000

300000

350000

30 40 50 60 70 80 90 100 110

Cool

ing

Capa

city

( Bt

u/hr

)

Air Temperature(°F)

Cooling Capacity vs Air Temperature

60°F EWT

120°F EWT

90°F EWT

C250APerformance Graph

PROGRAMMABLE LOGIC CONTROLS

PLC CONTROLLERYour Geyser C-Series may be equipped with a Programmable Logic Controller (PLC) and Human-Machine Interface (HMI) forcontrolling the water heating process. Sensors within the system provide operating information to the PLC which uses this information to safely control the heating process. The control comes with a pre-set.water high temperature setpoint of 120°F. The control is limited to a maximum water high temperature setpoint of 160°F. Operating at higher temperatures could void the warranty.

TEMPERATURE & SETPOINTSTo view and adjust the temperature setpoint, follow these steps.

-

-

-

-

Note: Until the Return key is pressed, the unit will run based upon the previous setpoint temperature.

View the HMI mounted on the electrical panel door. Locate the “High Temp” value on the setup screen.

Touch the box representing the current value. A keypad and cursor will appear.

Enter the desired temperature setpoint (maximum 160°F)

Touch the return, or enter key on the keypad. The display will return to the info screen, and your entered value should be displayed in the “high Temp” value box. The unit is now set to heat up to the new setpoint temperature.

38

PROGRAMMABLE LOGIC CONTROLS

PLC CONTROLLERYour Geyser C-Series may be equipped with a Programmable Logic Controller (PLC) and Human-Machine Interface (HMI) for controlling the water heating process. Sensors within the system provide operating information to the PLC which uses this information to safely control the heating process. The control comes with a pre-set.water high temperature setpoint of 120°F. The control is limited to a maximum water high temperature setpoint of 150°F. Operating at higher temperatures could void the warranty.

TEMPERATURE & SETPOINTS

To view and adjust the temperature setpoint, follow these steps.

View the HMI mounted on the electrical panel door. Locate the “High Temp” value on the setup screen.

Touch the box representing the current value. A keypad and cursor will appear.

Enter the desired temperature setpoint (maximum 150°F)

Touch the return, or enter key on the keypad. The display will return to the info screen, and your en-tered value should be displayed in the “high Temp” value box. The unit is now set to heat up to the new setpoint temperature.

Note: Until the Return key is pressed, the unit will run based upon the previous setpoint temperature.

SETPOINT RANGES & SAFETIES

SAFETY FACTORY SETTING ACTION

Low Flow (heating or cooling side) < 4.4 Gal/Min Shutoff

Low water temperature Safety (leaving evaporator) 36°F Shutoff

Low Water Temperature Alarm (leaving evaporator) 38°F Alarm

High Water Temperature Safety (leaving condenser) 155°F Shutoff

Temperature Setpoint Range 100°F - 160°F -

High Refrigerant Pressure Cut-out 380 psi Shutoff/Alarm

High Refrigerant Pressure Cut-in 340 psi -

Low Refrigerant Pressure Cut-out 15 psi Shutoff/Alarm

Low Refrigerant Pressure Cut-in 35 psi -

Low Refrigerant Pressure Bypass Time Delay 30 sec -

Low Oil Pressure Differential Cut-out 9 psi Shutoff/Alarm

Low Oil Pressure Differential Cut-in 13 psi -

Low Oil Pressure Differential Time Delay 120 sec -

Compressor Anti-Short Cycle Delay 180 sec -

Evaporator temperature defrost cut-in

Evaporator temperature defrost cut-out

34°F

410 PSI300 PSI

12 PSI

15 PSI

Compressor Anti-Short Cycle DelayCompressor Anti-Short Cycle Delay 500 sec

SETPOINTS RANGES & SAFETIES

PROGRAMMABLE LOGIC CONTROLS

SINGLE UNIT HOME SCREEN OPERATING AS A SINGLE UNIT ( IN DEFROST)

SINGLE UNIT HOME SCREENDISPLAYING ALARM STATUS

SINGLE UNIT ALARM SCREEN

SINGLE UNIT PIPE CONFIGURATION SCREEN

SINGLE UNIT TANK CONFIGURATION SCREEN

SINGLE UNIT IP ADDRESS CONFIGURATION SCREEN (FOR USE CONTACT NYLE)

HOME SCREEN

TERMINOLOGY

“LP” – Low Pressure: indicates the suction line pressure on the low side of the system

“HP” – High Pressure: indicates the discharge line pressure on the high side of the system

“LLSV” – Liquid Line Solenoid Valve: indicates the position of the LLSV (open or closed)

“Comp” – Compressor: indicates the status of the compressor (on or off ) “Blower” – Blower Overload Status: indicates if the blower motor starter is tripped on an Air to Water HPWH

“TempSet” – Tank Temperature Setpoint: indicates the desired tank temperature to be maintained

“CondFlow” – Condenser Flow: indicates if there is water flowing through the condenser

“Cond” – Condenser Temperature: indicates the leaving water temperature from the condenser

“SLT” – Suction Line Temperature: indicates the suction line temperature of the unit right before the compressor

“Evap1” – Evaporator 1: indicates the evaporator temperature of the first evaporator

“Evap2” – Evaporator 2: indicates the evaporator temperature of the second evaporator (only the C250A Air to Water HPWH has two evaporators)

“CTD”– Compressor Time Delay: indicates remaining time in compressor delay countdown“PTD” – Pump Time Delay: indicates remaining time in pump countdown, when the count down starts the pump turns on

Remote Mode Indicator – indicates if this unit is connected to a master panel via ethernet, if it isn’t then it will display a start button

Alarm Indicator – indicates if there is a system alarm, click on the button to see which alarm is currently triggered

Defrost Indicator – indicates if the unit is in a defrost cycle (in a defrost cycle the compressor shuts off and lets the fans run to warm up the evaporator)

“TempDiff” – Temperature Difference: sets the temperature difference below setpoint where the unit will turn on (only available if the unit isn’t in remote mode)

“Capacity” - Setable value (gallons) of tanks storage capacity.

“CondFlow” – Condenser Flow: indicates the flowrate through the condenser (based on frequency read by PLC through integrated paddle wheel flow sensor)

CONFIGURATION SCREEN

“Low Limit” – Sets the lowest flow rate limit that the unit will shut off at (enabled for Single-Pass applications only), press the save button to save the lower limit in a Single-Pass configuration

“Comp HRS” – Compressor Hours: indicates the run hours of the compressor

“Purge” button – this button will run the pump relay for 2 minutes to allow you to purge the system without turning on the units

“Tank/Pipe” - Unit call probe location, probe is reccomended inside of tank whenever possible.

“HIGH PRESSURE” – indicates if the unit has alarmed out on high pressure

“LOW PRESSURE” – indicates if the unit has alarmed out on low pressure “SHORT CYCLE” – indicates if the unit has been short cycling

“OUTLET FLOW” – indicates if the unit has alarmed out on condenser water flow

“BLOWER” – indicates if the blower motor starter as tripped

“M PROTECTION” – indicates if the unit has alarmed out on motor protection

“ESTOP” – indicates if the unit has alarmed out because an Estop has been pressed

“FAILOVER 1” – indicates if the unit’s temperature probe has failed

“OIL PRESSURE” – indicates if the unit has alarmed out on oil pressure

The stop screen will pop up as a confirmation whenever the “STOP” button on any screen is pressed.

ALARM SCREEN

STOP SCREEN