Read Microsoft Word - QXM8 IOM Supplement.doc text version

8750 Pioneer Blvd Santa Fe Springs CA 90670 Tel : 562-699-6066 x 3 Tel : 888-463-0880 x 3 Fax : 562-699-4351 www.quietside.com

6 Pine Hill Drive Carlisle PA 17013 717-243-2535 866-243-6498 717-243-7917

Quietside QXM8 IOM Supplement

This is a supplement to the standard IOM to provide additional important information regarding applying and installing the QXM8 in North America Please read prior to installing the unit Any questions please call Technical Support at the numbers listed above Standard Hydronic Applications Quietside units are particularly suited to Radiant and Fan Coil applications Care should be taken prior to applying the unit in Baseboard or Cast Iron radiator applications as the unit will only provide 165-170 DegF to the heating loop. Therefore it may be necessary to add both lengths of radiation to provide additional heat output at the lower temperatures. Product Sizing How to size the unit - House Heating Load is the primary sizing tool Obviously the main purpose of the unit is to provide Heating for the home. Ensure that your unit is sized correctly to the heat load of the house. Perform a Manual J or other detailed heat loss calculation, to determine the unit size required. This unit contains approximately 5 gallons in the heat exchanger, so it is not as sensitive to small zone loads as the QVM9 unit. To maximize efficiency and unit longevity we recommend heating on cycles of no less than 10 minutes.

Cont Product Sizing, Stage II Then check the DHW production required The units are capable of producing a certain quantity of Domestic Hot Water, this quantity is dependant upon 3 factors : Unit size, incoming water temperature, the desired leaving water temperature. The unit switches into DHW mode via a temperature sensor attached to the DHW connection. If the sensor measures a water temperature below 91 DegF, it forces the unit into DHW mode, shutting down the 115V pump signal from the unit controller. If the Sensor measures a temperature of 104 DegF, it assumes that the DHW flow has stopped and the unit reverts back to the heating mode. Actual GPM production from the QXM8 Oil units is as follows : DHW Production : QXM8 120 Delivered DHW Temp (DegF) GPM 100 105 110 115 120 125 Cold 40 Water 45 Temp 50 3.6 4.0 4.4 3.4 3.6 4.0 3.1 3.4 3.6 2.9 3.1 3.4 2.8 2.9 3.1 2.6 2.8 2.9

130 2.4 2.6 2.8

135 2.2 2.4 2.6

DHW Production : QXM8 150 Delivered DHW Temp (DegF) GPM 100 105 110 115 120 125 Cold 40 Water 45 Temp 50 4.7 5.2 5.7 4.4 4.7 5.2 4.0 4.4 4.7 3.8 4.0 4.4 3.6 3.8 4.0 3.3 3.6 3.8

130 3.1 3.3 3.6

135 2.9 3.1 3.3

Do you need more DHW performance from the QXM8's? This method of making DHW makes the use of a storage tank with recirculation pump with the QXM8 difficult as during operation to maintain the tank temperature, as the water temp from the recirculation pump does not start DHW mode operation unless the incoming water temperature is below 91 DegF. Therefore if you require more DHW production from an QXM8 Oil Quietside recommends the use of an indirect water heater operating as a zone from the heating side of the unit. The DHW connections can then be left unconnected as required.

2

Venting Requirements Vent Diameter Maximum Vent Length Maximum Number of 90 Deg Elbows Each elbow is the equivalent length of 5 ft Material : Intake Flue Gas 3" (NO DEVIATIONS) 31 Feet Equivalent Three 3" Flexible Hose or 3" PVC/ABS 3" Vent provided with SCF-8 OR Z Flex 4QVK015 Kit

Vertical Venting The problem is the efficiency of the units dictates that the units will condense water from the exhaust gases. WE CURRENTLY DO NOT ALLOW VERTICAL VENTING OF QXM8 UNITS Oil Fuel Tank Positioning Tank ABOVE the Unit MAXIMUM Oil line length 25 Feet INCLUDING MAXIMUM Drop between Oil Pump and Tank Outlet 8 Feet Oil Fuel Line Size 3/8" OD Fuel Tank BELOW the Unit MAXIMUM Oil line length MAXIMUM Lift between Oil Pump and Tank Outlet Oil Fuel Line Size General Oil Piping Information Flare fittings are on all Oil lines are required. Compression fittings can often allow air to be drawn into the fuel pump, decreasing the delivered oil pump pressure at the nozzle, and possibly causing the unit to starve of fuel, which will result in the unit shutting down and displaying a fault code. Tech Tip ­ If the level of fuel in the unit oil filter is below ½ full, the unit is starving for oil, either relocate the oil tank within the parameters above, or ensure that no air is introduced into the oil line 25 Feet INCLUDING 10 Feet 3/8" OD

3

General Oil Piping Information (Cont) Ensure that oil pipe lines are protected from any possible damage, and are installed at floor level wherever possible. Install a Shut Off Valve at the tank and an Oil Filter in the line. Due to the low vacuum developed by the Oil Pumps in the QXM8, the use of an auxiliary OSV is not recommended Anti Freeze & Freeze Protection For Anti Freeze protection in the Quietside units the following products are recommended "No Burst" "Fernox Alphii" The maximum concentration allowed is 30% by volume which will protect the unit down to approximately 5 DegF or -11 DegC Hydronic Piping System In built Low Water cut off, use a sensor in the heat exchanger to measure the water level inside the unit heat exchanger. Due to this they can be piped in a much more conventional method we recommend the following Radiant Air Handling Unit Baseboard Cast Iron Radiators Primary ­ Secondary Mandatory Primary ­ Secondary Mandatory Primary ­ Secondary recommended, however Split Loop is acceptable Primary ­ Secondary recommended, however Split Loop is acceptable

Pressure drop through the QXM8 Heating heat exchanger is very similar to that of a cast iron boiler Connections to the Hydronic piping are NOT a tapered thread, therefore it is mandated that a joint compound or tape is used on the threaded connections to prevent any slight leaks from occurring. Quietside recommends the use of Loctite 55 Pipe Dope as a joint compound

4

Controls ­ Zoning QXM8 Oil 4 Methods of Oil unit zoning exist 1. Factory option ­ MFS-001 zone control 2. No DHW 3. Independent from the unit 4. Taco or similar panel, retaining DHW priority The control voltage for the QXM8 is 20V DC. The unit is supplied with a Room Con7 thermostat which communicates with the controls on the unit panel. The 115V unit Pump output is also controlled using this controller This is NOT COMPATIBLE WITH ANY 24V AC "STANDARD" CONTROL. 1. Quietside MFS-001 Control REMEMBER USE ONE MFS-001 PER ZONE This control is supplied with a Room Con7 thermostat. Each MFS-001 is connected per the wiring diagram provided on the controller, the QXM8 control wire connections from every MFS controller used should be wired back to the orange control wires at the unit. Using the MFS controller ensures that DHW priority is maintained in the system. The 24VAC output can be used to drive zone valves or zone pump relays. 2. No DHW Priority If the QXM8 Domestic Hot Water coil is not required, either due to an existing DHW system being installed or the use of an indirect hot water, the unit can be zoned very simply. Connect the 2 Orange control wires from the unit to an X-X or dry contact to start and stop the unit. This will fire the unit provided that the water temperature inside the heat exchanger is below the heating water temperature set-point selected on the unit control panel. The 115V pump output from the unit can be used to control the circulator(s) or not used if the existing zoning controls are used to control the circulator(s)

5

Controls ­ Zoning (Cont) 3. Independent from the QXM8 Oil Unit To use this method of zoning the Room Con7 is connected to the unit control wires. The temperature set-point is turned up to the maximum on the Room Con, ensuring that the unit is always calling for heating. The desired water temperature is set on the unit control panel. The zone controls are independent, when they call for heating, they start the pumps in the system, this pumps water through the QXM8 unit, dropping the water temperature, which will start the operation of the QXM8 4. Taco or similar zone controller retaining DHW operation The Room Con7 supplied with the unit must be connected to the 2 orange unit control wires. The Winter button must be pressed on the Room Con7, and the desired air temperature set to the maximum, ensuring that the unit is always calling for heating. The target system water temperature is then set on the unit control panel, Rad = 104 DegF up to Cast = 176 DegF in the heat exchanger. The 115V pump output from the unit is used to power the Taco or similar zone controller. The Taco zone controller then controls all of the system components. As the individual zones call for heating the zone controller energizes the system circulator pump(s), providing flow through the unit heat exchanger. When the water temp inside the heat exchanger falls below the water temp set-point the unit will fire. Should the DHW system be used, the DHW sensor in the QXM8 will sense the flow of cold DHW and then shut off the 115V power supply to the Zone Controller. This causes the zone controller to stop, closing the zone valves and stopping the system circulator. After the DHW call has been completed the unit reverts back the heating mode and the 115V supply to the Zone Controller is restored.

6

ROOMCON7

Winter Air Temp

NOTES QXM8 OIL FIRED DPWH BLACK ORG WHITE ORG

SET REQUIRED WATER TEMP ON QXM8 CONTROL PANEL

TO SET ROOMCON7 PRESS WINTER BUTTON THEN SET AIR TEMP SLIDER TO MAXIMUM TEMPERATURE

WIRE BLACK AND WHITE PUMP OUTPUT WIRES TO 120V AC INPUT FOR TACO PANEL

WHEN UNIT PRIORITIZES DHW THE 115V OUTPUT FROM THE QXM8 IS SHUT DOWN, SHUTTING DOWN THE SYSTEM PUMPS AND VALVES

AFTER THE DHW CALL HAS FINISHED THE 115V OUTPUT IS RESTORED AND THE TACO PANEL IS POWERED

X-X CONTACT IS NOT CONNECTED

DIAGRAM SHOWS AN SR504, HOWEVER DIAGRAM CAN BE USED WITH ALL SR OR ZVC ZONE CONTROL PANELS

QXM8 & TACO PANEL WIRING DIA JLM 10/27/2004

Combustion Set Up The standard combustion analysis for these units is : CO2 Oxygen Stack Temp (Gross) Smoke Test Procedure Drill an access hole in the flue pipe for the combustion analyzer probe. The hole should be approximately 12" above the unit vent connection. Use a stainless steel screw to seal the hole after testing is complete. Start the unit and establish combustion. If required bleed the oil line using the bleed screw on the Oil Pump, and the bleed screw on the filter bowl to remove air from the oil line. Once combustion has been established start checking the flue gas condition, depending on the results the following may be required. If less air is required to reduce the Oxygen level etc then undo the screw holding the combustion air slider and move to left (lower # on the scale, std setting is 2.5) If more air is required to reduce the smoke reading etc then undo the screw holding the combustion air slider and move to right (higher # on the scale) 10-12% 6-8% 300-350 DegF Optimum ­ Zero

Maximum - Trace

Slider screw

QUI-QXMIOMA-001 7

Information

Microsoft Word - QXM8 IOM Supplement.doc

8 pages

Report File (DMCA)

Our content is added by our users. We aim to remove reported files within 1 working day. Please use this link to notify us:

Report this file as copyright or inappropriate

453953


Notice: fwrite(): send of 205 bytes failed with errno=104 Connection reset by peer in /home/readbag.com/web/sphinxapi.php on line 531