TRANE SVU001C High-Efficiency Gas-Fired Propeller Unit Heaters User Manual
- June 5, 2024
- Trane
Table of Contents
TRANE SVU001C High-Efficiency Gas-Fired Propeller Unit Heaters
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air- conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
Important Environmental Concerns
Scientific research has shown that certain man-made chemicals can affect the
earth’s naturally occurring stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified chemicals that may affect
the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon
(CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs).
Not all refrigerants containing these compounds have the same potential impact
to the environment. Trane advocates the responsible handling of all
refrigerants-including industry replacements for CFCs and HCFCs such as
saturated or unsaturated HFCs and HCFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are important to the
environment, our customers, and the air conditioning industry. All technicians
who handle refrigerants must be certified according to local rules. For the
USA, the Federal Clean Air Act (Section 608) sets forth the requirements for
handling, reclaiming, recovering and recycling of certain refrigerants and the
equipment that is used in these service procedures. In addition, some states
or municipalities may have additional requirements that must also be adhered
to for responsible management of refrigerants. Know the applicable laws and
follow them.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious injury. All field
wiring MUST be performed by qualified personnel. Improperly installed and
grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these
hazards, you MUST follow requirements for field wiring installation and
grounding as described in NEC and your local/state/national electrical codes.
WARNING
Personal Protective Equipment (PPE)
Required!
Failure to wear proper PPE for the job being undertaken could result in death
or serious injury. Technicians, in order to protect themselves from potential
electrical, mechanical, and chemical hazards, MUST follow precautions in this
manual and on the tags, stickers, and labels, as well as the instructions
below:
- Before installing/servicing this unit, technicians MUST put on all PPE required for the work being undertaken (Examples; cut resistant gloves/sleeves, butyl gloves, safety glasses, hard hat/bump cap, fall protection, electrical PPE and arc flash clothing). ALWAYS refer to appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.
- When working with or around hazardous chemicals, ALWAYS refer to the appropriate SDS and OSHA/GHS (Global Harmonized System of Classification and Labeling of Chemicals) guidelines for information on allowable personal exposure levels, proper respiratory protection and handling instructions.
- If there is a risk of energized electrical contact, arc, or flash, technicians MUST put on all PPE in accordance with OSHA, NFPA 70E, or other country-specific requirements for arc flash protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED FOR THE INTENDED VOLTAGE.
Follow EHS Policies!
Failure to follow the instructions below could result in death or serious injury.
- All Trane personnel must follow the company’s Environmental, Health and Safety (EHS) policies when performing work such as hot work, electrical, fall protection, lockout/tagout, refrigerant handling, etc. Where local regulations are more stringent than these policies, those regulations supersede these policies.
- Non-Trane personnel should always follow local regulations.
Installation
WARNING
Live Electrical Components!
Failure to follow all electrical safety precautions when exposed to live
electrical components could result in death or serious injury.
When it is necessary to work with live electrical components, have a qualified
licensed electrician or another individual who has been properly trained in
handling live electrical components perform these tasks.
Tools Required
- Combustion Analyzer
- Size 50-200: 2.5mm Allen Wrench
- Size 300-400: Flat Head Screw Driver
- Phillips Screw Driver
- Wire Jumper
-
Remove control box cover and power venter access panel.
-
Turn on power and gas.
Note: Remember to turn gas valve ON/OFF switch to the “ON” position. -
Set gas control mode dip switches 1-5 to zero. Note: Dip switches 6-8 should not be changed since they are set by the factory for the unit size. See “Dip switch 6-8” table in the OPERATION section of the unit installation manual for additional information. If applicable remove the 2-10 Vdc wires from control board.
Table 1.Table 1. Dip switch 6-8, unit size
Unit Size (MBh)
| CO 2 Meter Reading| O 2 Meter Reading| Action
Required
---|---|---|---
Natural Gas
| ****
Propane Gas
| ****
Natural Gas
| Propane Gas| Gas Valve Adjustment
50 and 150| <7.4%| <8.7%| >7.9%| >7.6%| Counter
Clockwise
50 and 150| >7.9%| >9.3%| <7.0%| <6.7%| Clockwise
100 and 200| <7.5%| <8.9%| >7.7%| >7.6%| Counter
Clockwise
100 and 200
| ****
8.0%
| ****
9.3%
| ****
<6.9%
| ****
<6.5%
| Clockwise
300| <7.5%| <8.6%| >7.7%| >7.3%| Counter
Clockwise
300| >8.0%| >9.0%| <6.9%| <6.5%| Clockwise
400| <7.5%| <8.6%| >7.7%| >7.6%| Counter
Clockwise
400
| ****
8.0%
| ****
9.3%
| ****
<6.9%
| ****
<6.5%
| Clockwise
4. Jumper R to W1 to call for heat.
5. Set Run % Potentiometer to 100%.
Note: Allow the unit to run for 2 minutes to ensure the unit reaches 100%
fire.
- Place combustion analyzer in flue pipe.
- Adjust high fire on gas valve or trim valve based on Table 2.
Table 2. High fire gas valve adjustment ****
Unit Size (MBh)
| CO 2 Meter Reading| O 2 Meter Reading| Action
Required
---|---|---|---
Natural Gas
| ****
Propane Gas
| ****
Natural Gas
| Propane Gas| Gas Valve Adjustment
50 and 150| <7.4%| <8.7%| >7.9%| >7.6%| Counter
Clockwise
50 and 150| >7.9%| >9.3%| <7.0%| <6.7%| Clockwise
100 and 200| <7.5%| <8.9%| >7.7%| >7.6%| Counter
Clockwise
100 and 200
| ****
8.0%
| ****
9.3%
| ****
<6.9%
| ****
<6.5%
| Clockwise
300| <7.5%| <8.6%| >7.7%| >7.3%| Counter
Clockwise
300| >8.0%| >9.0%| <6.9%| <6.5%| Clockwise
400| <7.5%| <8.6%| >7.7%| >7.6%| Counter
Clockwise
400
| ****
8.0%
| ****
9.3%
| ****
<6.9%
| ****
<6.5%
| Clockwise
8. Set Run % Potentiometer to 33%.
Note: Allow the unit to run for 2 minutes to ensure the unit to reaches
33% fire.
- Adjust low fire on gas valve based on Table 3.
- Remove R to W1 jumper. Turn the thermostat to lowest setting and confirm unit turns off. Table 3. Low fire gas valve adjustment
Unit Size (MBh)
| CO 2 Meter Reading| O 2 Meter Reading| Action
Required
---|---|---|---
Natural Gas
| Propane Gas|
Natural Gas
| Propane Gas| Gas Valve Adjustment
50-200
|
<4.2%
|
<5.3%
|
13.3%
|
12.7%
| Clockwise
50-200| >5.0%| >5.8%| <12.0%| <12.0%| Counter Clockwise
300| <4.0%| <5.0%| >13.6%| >13.1%| Counter Clockwise
300| >4.5%| >5.4%| <12.3%| <12.5%| Clockwise
400| <4.2%| <5.3%| >13.3%| >12.7%| Counter Clockwise
400| >5.0%| >5.8%| <12.0%| <12.0%| Clockwise
11. Select desired gas control and set the thermostat to desired temperature.
Modulating with Outdoor Air Reset (MAS)
Dip Switch Settings: 1 and 3 to ON; 2, 4 and 5 to OFF.
This gas control should be used in regions with large temperature swings.
The unit will automatically vary the discharge air temperature based on the
outside air temperature. Set the “Design T/ Space SP” potentiometer to outdoor
air temperature where the unit should be at 100% fire (usually design outdoor
air temperature used in sizing the unit).
Note: If ordered with Outdoor Air Reset, unit will come with an Outdoor
Air Sensor for field installation. The unit can be field converted to Outdoor
Air Reset by ordering the Outdoor Air Sensor.
Modulating with Outdoor Air Reset (Network)
Dip Switch Settings:1 and 4 to ON; 2, 3 and 5 to OFF.
This gas control modulates the unit the same as Outdoor Air Reset (MAS).
However, it does not require a separate outdoor air sensor. It allows the
management unit to share the outdoor air temperature with all networked units.
Set the “Design T/Space SP” potentiometer to outdoor air temperature where the
unit should be at 100% fire (usually design outdoor air temperature used in
sizing the unit).
Note: One manager unit is required per networked group; when networked
together, the Manager and Member units need to be set to the same Modbus
address.
Indoor Air Reset
Dip Switch Settings: 2 to ON; 1, 3-5 to OFF.
This gas control attempts to learn your building’s heating needs and run at
the bare minimum to keep the space temperature within the allowed range. The
unit will vary the discharge air temperature so the unit is running at lowest
output possible without short cycling.
Note: A W2 call will act as a room override and force the unit to high
fire.
Room Sensing
Dip Switch Settings:1 and 2 to ON; 3, 4 and 5 to OFF.
This gas control allows the unit to vary the discharge air temperature to more
closely match the needs of the space for precise temperature control. Set
“Design T/Space SP” potentiometer to desired room temperature.
Note: If ordered with room sensing, unit will come with a Room Sensor for
field installation. The unit can be field converted to room sensing by
ordering the Room Sensor.
Two Stage
Dip Switch Settings: 1-5 to OFF.
While designed for modulating gas control, the unit can be used with two stage
gas control. A W1 signal will cause the unit to run at the firing rate set by
the Run percentage potentiometer. A W2 signal will cause the unit to run at
100% fire.
Single Stage
Dip Switch Settings:1-5 to OFF.
While designed for modulating gas control, the unit can be used with single-
stage gas control. By connecting the single stage thermostat to the W1
terminal, the unit will run at the firing rate set by the Run percentage
potentiometer. If the single-stage thermostat is connected to the W2 terminal
the unit will run at 100% fire.
Trane – by Trane Technologies (NYSE: TT), a global climate innovator – creates
comfortable, energy-efficient indoor environments for commercial and
residential applications. For more information,
please visit trane.com or
tranetechnologies.com.
Trane has a policy of continuous product and product data improvement and
reserves the right to change design and specifications without notice. We are
committed to using environmentally conscious print practices.
References
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