Lochinvar R513A Evaporator Fan Heat Pump Water Heater Instruction Manual
- September 7, 2024
- Lochinvar
Table of Contents
R513A Evaporator Fan Heat Pump Water Heater
Product Information
Specifications
-
Evaporator Fan: Variable speed fan controlled by ambient
temperature. -
Refrigerant: Uses R513A.
-
Minimum Ambient Temperature: Refer to I&O manual for
details. -
Glycol Compatibility: Suitable for use with polypropylene
glycol up to 50% concentration. -
Heating Capability: Can enable gas fired or electric heat pump
system containing backup units. -
Bacnet/Modbus Gateway: Refer to manual for the required number
per system. -
Certifications: Compliant with industry standards, refer to
manual for details.
Product Usage Instructions
Evaporator Fan
The variable speed evaporator fan is controlled by ambient
temperature. Ensure proper installation and refer to the I&O
manual for specific details on fan speed adjustments.
Refrigerant
Veritus uses R513A refrigerant. Follow manufacturer guidelines
for handling and maintenance of the refrigerant system.
Start Up & Operation
Refer to the manual for the minimum ambient temperature required
for Veritus operation. Glycol can be used for freeze protection;
follow guidelines for glycol concentration and use a secondary heat
exchanger when in contact with potable water.
Electrical
Consult the manual for the number of Bacnet/Modbus gateways
needed per system for proper integration and communication.
Miscellaneous
Veritus has specific certifications and listings; refer to the
manual for detailed information. The condenser is built to ASME
standards to accommodate system pressures.
Frequently Asked Questions (FAQ)
Evaporator Fan
-
What is the advantage of a variable speed evaporator
fan?
The variable speed fan allows for precise control based on ambient
temperature variations. -
What changes the speed on the evaporator
fan?
The fan speed is determined by ambient temperature; refer to the
I&O manual for specific details on adjustments. -
Can the evaporator fan overcome additional static
pressure?
No, Veritus requires a neutral pressure differential when installed
indoors and ducted. Contact the factory for design considerations
if ducting is needed.
Refrigerant
- Why does Veritus use R513A?
R513A is used as the refrigerant in Veritus systems due to its
specific properties and performance characteristics.
Start Up & Operation
-
What is the minimum ambient temperature for
Veritus?
Refer to the manual for the specific minimum ambient temperature
required for proper Veritus operation. -
Can glycol be used with Veritus for freeze protection
and power outages?
Yes, Veritus is compatible with polypropylene glycol up to 50%
concentration. Follow guidelines for glycol use and isolation from
potable water. -
Does Veritus have the capability to enable gas fired or
electric heat pump systems with backup units?
Yes, Veritus can enable such systems for peak loading or hybrid
configurations.
Electrical
- How many Bacnet/Modbus gateways are needed per
system?
Refer to the manual for the specific number of gateways required
per system for proper integration.
Miscellaneous
-
What certifications and listings does Veritus
have?
Veritus has certifications and listings compliant with industry
standards; refer to the manual for detailed information. -
Is the condenser ASME Rated?
No, the condenser is built to ASME standards to accommodate
designed system pressures. Refer to the latest revision for updated
information.
FREQUENTLY ASKED QUESTIONS
Evaporator Fan: 1. What is the advantage of a variable speed evaporator fan?
– As the ambient temperature drops, more air is needed to move across the
evaporators to extract energy to transfer. The Veritus® variable speed fan
allows it to increase the fan speed at lower ambient temperatures to reduce
overall capacity loss. – Minimizes ambient noise by lowering fan speed to
provide only the required air flow – Maximizes efficiency of the system by
reducing power consumption
2. What changes the speed on the evaporator fan? – Fan speed is determined by
ambient temperature; reference I&O manual for details
3. Can the evaporator fan overcome additional static pressure? – No; Veritus
requires a neutral pressure differential when installed indoors and ducted. –
If ducting is required please contact the factory for design considerations.
Refrigerant: 1. Why does Veritus use R513A?
– R513A was chosen for Veritus due to its advantages. · It has a low Global
Warming Potential (GWP) of 575. · Non-toxic · Non-flammable · Low pressure ·
Readily available across the US · Properties are very similar to R134a (a
commonly used refrigerant in HVAC equipment that the industry is familiar
with). · Capable of Multi-pass and Single pass · Can handle recirculation loop
temperature maintenance without an extra tank · Water outlet temperatures
~160°F
Start up & Operation: 1. What is the minimum ambient temperature for Veritus?
– Veritus operates below freezing to 23°F 2. What is the maximum outlet
temperature?
– Veritus can provide 160°F outlet temperatures from an ambient temperature of
45°F & above. – Veritus can provide maximum set point of 140°F outlet
temperatures at minimum operating temperature of 23°F. – Veritus maximum
setpoint at 40° F is 150° F 3. Does Veritus continue to operate below the
minimum ambient temperature? – No, to protect the compressor, Veritus will
shut down heat pump operation. In these conditions Veritus can control
optional back up heat alternatives. 4. Is there factory installed heat tracing
for cold weather? – Yes, Veritus comes standard with heat trace added to the
condensate pan, condenser and inlet piping between the condenser and jacket.
Additionally, there are auxiliary connections on the terminal strip closest to
the pump that allows for additional control of job installed heat trace.
· Axillary Terminal output voltage is 120v · Axillary Current limitation is 3
amps
5. Can glycol be used with Veritus for freeze protection and power outages? –
Yes, Veritus is suitable for use with polypropylene glycol up to 50%
concentration. The de-rate associated with the glycol will vary per glycol
manufacturer. – If glycol is used, potable water must be isolated from the
glycol with a secondary heat exchanger.
6. Does Veritus have the capability to enable gas fired or electric heat pump
system containing backup units for peak loading or hybrid systems?
– Yes; Veritus has the capability to enable gas fired or electric backup units
for peak loading. – Reference Service Manual and I&O for details. 7. Is the
defrost cycle time based like other heat pumps in the market? – No; the
Veritus patent-pending defrost logic is not based solely on time. Defrost will
trigger based on a combination of evaporator and ambient temperatures. The
duration and interval will also be dependent on these factors. 8. What is the
typical defrost cycle for Veritus? – During defrost conditions, a typical
cycle has a duration of 3 minutes with every 90 minutes of run time. 9. Will
cold water be delivered to the storage tank during a defrost cycle? – Yes;
Approximately 1-2 GPM of 50F water will enter the storage tank during a
defrost cycle. 10. Do the published COP values account for defrost cycles? –
No; it is not required by DOE test standard 11. Can the units be stacked? –
No, installed units cannot be stacked. It is acceptable to stack 3 high, when
warehousing. 12. Is a vacuum break required on the condensate drain line? –
Yes. A P-Trap with vacuum break is required to be
installed in the condensate drain line. Detailed information can be found in
section 3 of the I&O manual. 13. Can Veritus be ordered without the pump? –
No, the provided pump is required for proper operation. 14. Can a different or
upsized pump be used with Veritus? – No. Heat pump operation is specifically
designed and tuned for the pump provided with the product. 15. Can Veritus
units be installed indoors without ducting? – Yes, if adequate make-up air can
be provided. 16. Is there corrosion protection for Veritus when installed in
coastal regions? – Yes, we offer an optional field applied coating for the
evaporator recommended to be reapplied annually or whenever coils are cleaned,
whichever comes first. – Additionally, the standard cabinet for Veritus has
undergone a 9000-hour salt spray test. 17. What are the water quality
requirements for Veritus? – See table 9-1 in chapter 9 of I&O manual
Electrical: 1. How many Bacnet/Modbus gateways are needed per system?
– Only 1 gateway is needed per control panel. If multiple modules are cascaded
together with one control, only one gateway is needed. 2. How many heaters,
pumps and panels can be wired to the optional single point electrical
connection? – There are two sizes available that only apply to models
AHP200-350. These options are sized according to the power needs of 2 or 3
modules and are identified as such in the price book. – For systems larger the
AHP350, the single point electrical panel does not apply. 3. Can one control
panel control multiple and various units of different sizes? – Yes. A single
control panel can communicate with up to 64 heat pump modules. 4. What is the
outdoor rating for the control panel? – The control panel is rated for outdoor
installations by UL per standard 60335-2-40. The rating is closely equivalent
to IPX4. 5. Is the single-point electrical outdoor rated? – Yes. The single-
point electrical is equivalent to NEMA 3R Rating intended for indoor/outdoor
installation. 6. Is the step-up transformer outdoor rated? – Yes. The
transformer is constructed with NEMA 3R Enclosures for outdoor installation.
7. How many electrical supply connections does Veritus require? – Each module
requires a single 480v/3ph power supply. Each control panel (1 per system)
requires a single 120v power supply.
Miscellaneous: 1. What certifications and listings does Veritus have?
– UL 60335-2-40 · Product Sourcing and Certifications Database | UL Solutions
– CSA Low Lead · CSA Group Product Listing – CSA Group
– MA Accepted Plumbing Products · ma-dpl.my.salesforce-
sites.com/MAPlumbingProducts/ppPlumbProdFinal
– CEC, JA-14 · MAEDBS Login (ca.gov)
– NEEA, QPL · Northwest Energy Efficiency Alliance (NEEA) | View NEEA’s
Advanced…
*2. Is the condensor ASME Rated? – No. The condenser is built to ASME standards to accommodate designed system pressures.
- updated or added with latest revision
Rev B. 7/29/2024
References
- www.ca.gov | California State Portal
- ma-dpl.my.salesforce-sites.com/MAPlumbingProducts/ppPlumbProdFinal