nrgMax 9103i
Advanced Universal Oil
Furnace Control
User's Guide
9103i Advanced
Universal
Oil Furnace Control
OVERVIEW
The nrgMAX 9103i is the only oil-furnace control you will ever need. It is a feature-rich control designed to meet the needs of modern energy-efficient oil furnaces while still offering backwards compatibility with legacy products.
Mounting in the industry-standard footprint with familiar layout and connections this high quality design meets the needs of an entire industry sector. It eliminates the need for additional controls to accommodate Euro-style burners, and offers and array of variable speed options to suit any requirement.
The control is suitable for use with PSC motors and ECM motors. ECM motors can be controlled in the common “thermostat-mode”. PSC motors are controlled with traditional heavy-duty relay outputs.
OPTIONAL ADVANCED FEATURES
•Enhanced operation of Standard PSC Blowers
•Alternate Burner Connection (for burners with postpurge capability)
•Automatic dehumidification
US and Canadian Patents Pending
FEATURES
•Industry-standard footprint, mounting and connections
•compatible with American burners (Beckett, Carlin etc) as well as Riello Burners with no additional relays required
•Industry-standard 9-pin burner connection
•120VAC Connections for:
◦Heat speed motor winding
◦Cool speed Motor winding
◦EAC
◦Humidifier
◦Continuous Fan
•24VAC Thermostat Connections for:
◦5-wire (R,C,W,Y,G), plus
◦W2 (Stage 2 Heating)
◦Y2 (Stage 2 cooling)
◦Yx (dummy connection)
◦O/B (Heat Pump reversing valve)
◦DH (Dehumidification)
•16-pin connection to GE/Beloit-style ECM Motors
•LED Status indicator
•Solid-State resettable fuse for 50VA Transformer protection
•Double-sided Copper-clad PC board, soldered top and bottom for optimum strength and durability
•Multipurpose DIP-switch for field settings
nrgMAX (division of Bob Tonner Applied Research Inc) Pickering, ON, 289-800-7131 www.nrgmax.ca
Terminals for unused blower wires
120VAC outputs to loads and accessories
Heavy duty relays power blowers up to 15Amps
Field-selectable
option jumpers:
Extended Blower-
On Delay and/or
Enhanced Mode
Enhanced Low
Voltage Surge
Protection
Features and Highlights
120VAC Mains |
120VAC |
Burner 9-pin |
|
|
Supply |
Neutral |
|
||
connector |
Humidifier |
|||
connections |
Connections |
|||
|
||||
|
|
|
Connection |
|
|
|
|
(120VAC) |
Alternate Burner connection with 
continuous 120VAC
Built-in burner supply relay 
(powers limit string and burner)
24VAC Transformer input connection. Protected by Solidstate resettable fuse
16-pin connector for ECM Motors
Multipurpose Dip-switch for user settings
Industry-Standard mounting holes and footprint
Standard 5-wire |
Extended |
Bright LED for |
|
status indication |
|||
thermostat |
|||
thermostat |
|||
|
|||
connections |
|
||
connections |
|
||
|
|
SPECIFICATIONS
•Electrical Ratings:
◦Power Requirements:
▪Voltage: 24Vac, 50/60 Hz.
▪Current: 4 VA at 24 Vac.
▪PTC Fuse (resettable) trips at 4.5A
◦Contact Ratings:
▪Circulating Fan: 15A Full Load, 30A Locked Rotor at 115 Vac (includes optional EAC load).
▪Burner: 5.8 A Continuous Load (7.4A with interrupted ignition)
•Settings: Standard Configuration
◦Heating:
▪Blower On Delay: 30 or 75 seconds, fieldadjustable
▪Blower Off Delay (BOD): 90, 120, 150, 180 seconds, field-adjustable.
◦Timing Tolerance: less than 1 second
•Environmental Ratings:
◦Temperature: -40 to +150° F [-40° to +66° C].
◦Humidity: 95% maximum, non-condensing.
Terminals and Connections:
Low Voltage:
•Thermostat:
◦G: Blower On
◦W: Call for heat (0.08A load)
◦R: 24VAC out to thermostat
◦ Y1: |
Cooling, Stage 1 |
◦C: 24Vac common
◦ |
W2: |
Heating, Stage1 |
◦ |
Y2: |
Cooling, Stage2 |
◦ |
Yx: |
Dummy terminal, no connection |
◦O: Heat pump reversing valve
◦ DH: Dehumidification
•CLASS 2 TRANSFORMER 50VA Max (overload protected)
◦ X: 24VAC
◦ C 24VAC Common
•16-PIN ECM Connector: Convenient interface between 10-position thermostat, DIP-switches and ECM motors.
•
•Option Jumpers: Selectable Options:
◦ F1 Reserved
◦F2 Enhanced PSC Mode
◦F3 Extended Blower On Delay (75 Sec)
Line Voltage:
•Unused: No connection (2 terminals)
• L1: |
120VAC 60Hz, 1ph, 15 A mp (Max) supply |
•N: 120VAC Neutral supply
•Neutrals: Connection points for loads, tied internally to N (6 terminals)
•120VAC : L1 supply to accessories, continuously powered (3 terminals)
•Cont. 120VAC to Continuous speed of blower. Normally energized, it is de-energized whenever Cool or Heat terminals are energized
• |
EAC: |
120VAC to Electronic Air Cleaner. |
|
Energized along with Cool or Heat terminals |
|
• |
Heat: |
120VAC 15A, 1HP blower speed. |
• |
Cool: |
120VAC 15A, 1HP blower speed |
•H: 120VAC 1A to Humidifier. Powered by burner motor feedback (Pins 7-8 on 9-pin burner connector).
Burner Connections:
•9-PIN AMP Connector:
(MATES WITH TYCO PART #350720)
1)Safety Limit string (return)
2)120VAC to Oil Burner (high-limit protected)
3)Burner T-T (internally connected to Pin 6)
4)Neutral (internally connected to Pin5 and N)
5)Neutral (internally connected to Pin 4 and N)
6)Burner T-T (internally connected to Pin 3)
7)Burner Motor (internally connected to Pin 8)
8)Burner Motor (internally connected to Pin 7)
9)120VAC to Safety Limit string. Normally off, energized on call for heat by Relay K1
•Edge Connector (Alternate, 6 conductor) mates with Molex 09-01-6061.
◦ Motor: Burner Motor
◦Limit: 120VAC to Safety Limit string. Normally off, energized on call for heat by Relay K1
◦Limit: Safety Limit string (return)
◦ L1: 120VAC to Oil Burner (high-limit protected)
◦120V: 120VAC Continuous (not limit protected)
Status LED Flashing Patterns
|
|
|
|
1 |
|
1 |
|
1 |
|
|
|||
sec |
sec |
|
|
||||||||||
|
|
|
|
|
sec |
|
|
|
|||||
Standby |
|
|
|
|
|
|
|
|
|||||
Heating |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|||
Cooling |
|
|
|
|
|
|
|
|
|
|
|
|
|
Limit |
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|||
Limit reset |
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|||||
|
|
|
|
|
|
|
|
|
|
||||
No Burner |
|
|
|
|
|
|
|
|
|||||
nrgMAX (division of Bob Tonner Applied Research Inc) Pickering, ON, 289-800-7131 www.nrgmax.ca
OPERATIONAL MODES: |
|
speed |
||||
|
◦ DH (NO 24V signal): immediately |
|||||
All operational modes are simultaneously active on |
|
|||||
|
drops from Cool speed to Heat speed |
|||||
the 9103i, and the user needs only to make the |
|
|||||
|
to dehumidify. |
|||||
appropriate connections to make use of them. The |
|
◦ DH (24V signal returns): Blower |
||||
DIP-Switch is interpreted by the on-board software |
|
stepped up to Cool speed |
||||
differently for each mode of operation. |
|
◦ Y2 (24V signal) overrides DH and Y1 |
||||
|
|
|
|
|
|
keeping Cool terminal on as long as |
|
|
|
|
|
|
signal on Y2 is present |
|
• Standard PSC: Blower motor is driven by on-board |
|||||
|
|
◦ G (24V signal alone without Y1, Y2, or |
||||
|
heavy duty relays. Heat, Cool and Continuous |
|
||||
|
|
W): energizes Heat terminal |
||||
|
speeds are available from 0.250” male spade |
|
||||
|
|
|
||||
|
terminals clearly marked on board. Compatible with |
|
Note: for 2-stage cooling in Enhanced mode use Yx |
|||
|
all 5+ wire thermostats and responds to: |
|
||||
|
|
and Y2. Yx is a dummy terminal and is ignored by |
||||
|
◦ |
W: heating |
|
|||
|
|
the control logic but provides a convenient |
||||
|
◦ |
Y1: cooling |
|
|||
|
|
connection point for the AC compressor. When the |
||||
|
|
Y2: cooling |
|
|||
|
◦ |
|
thermostat calls for stage 1 cooling (a Y1 signal from |
|||
|
|
G: Blower On |
|
|||
|
◦ |
|
the thermostat) it is terminated at Yx, but the |
|||
|
|
DIP-Switch: |
|
|||
|
◦ |
|
thermostat also activates G simultaneously. The |
|||
|
|
▪ Blower Off Delay (BOD): |
|
9103i then energizes the lower speed Heat terminal |
||
|
|
|
• |
A: 90 Seconds |
|
as long as the condition exists. If Y2 is energized |
|
|
|
• |
B: 120 Seconds |
|
(together with Y1/G, or separately) the control will |
|
|
|
• |
C: 150 Seconds |
|
switch to Cool speed. This allows for 2 different |
|
|
|
• |
D: 180 Seconds |
|
blower speeds for 2-stage cooling |
|
|
|
|
|
||
|
|
▪ |
Heat: no function |
|
|
|
|
|
▪ |
Cool: no function |
|
|
|
|
|
|
|
|||
|
|
▪ |
Adj: |
no function |
|
• ECM Mode: ECM Motor handles all blower speed |
|
|
|
|
|
|
logic in factory-set “thermostat mode” and it monitors |
|
OPTION: |
|
|
all ten thermostat inputs. The 9103i control |
||
|
Enhanced PSC Mode is selected by placing the |
|
energizes the EAC and H terminals normally. While |
|||
|
option jumper across position #3 and #4 on the |
|
the DIP-Switch settings are now directed to the ECM |
|||
|
Option Select pins (See “Setting Options”). All wiring |
|
motor through the 16-pin connector the 9103i will |
|||
|
and connections remain the same as the Standard |
|
continue to interpret the BOD settings to establish |
|||
|
PSC mode, however the operation is enhanced. |
|
the delay period before de-energizing EAC terminal. |
|||
|
|
|
|
|
|
Please note that the OEM factory -settings for the |
|
ENABLE THIS OPTION ONLY WHEN THE COOL |
|
ECM blower-off delay may not co-ordinate with the |
|||
|
TERMINAL IS CONNECTED TO A HIGHER |
|
EAC delay. The 9103i Controller has no influence |
|||
|
BLOWER SPEED THAN HEAT OUTPUT. |
|
over the ECM motor as all signals are “pass- |
|||
|
|
|
|
|
|
through” only. |
|
EXAMPLE: |
|
|
|
||
|
|
|
“HEAT” CONNECTED TO MED-HIGH |
|
|
|
|
|
|
“COOL” CONNECTED TO HIGH |
|
|
|
|
|
• |
Heating: |
|
|
|
|
|
|
◦ W (24V signal) activates Heat Speed |
|
|
|
|
|
|
|
output |
|
|
|
|
|
◦ W+W2 (24V signals) activate Cool |
|
|
|
|
|
|
|
Speed. |
|
|
• Cooling: Blower is initially started on Heat Speed for 4 minutes to allow for dehumidification, after which the blower switches to Cool Speed. If the the 24VAC signal to the DH terminal opens this signals a call to dehumidify and the blower drops down to heat speed to encourage greater condensation across the cooling coil. When the 24VAC signal reappears on DH the blower is switched back up to Cool speed. ◦ Y1 (24V signal): 4 minutes at Heat
speed to dehumidify, then to Cool
Loading...