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356485-UIM-G-1211

Johnson Controls Unitary Products

19

Multi-story or common venting systems are permitted and must be
installed in accordance with the National Fuel Gas Code, ANSI Z223.1/
NFPA 54 and / or the CSA B149.1, Natural Gas and Propane Installa-
tion Codes, local codes, and the manufacture's instructions.

Vent connectors serving Category I furnaces shall not be connected
into any portion of mechanical draft systems operating under positive
pressure.

Horizontal portions of the venting system shall be supported to prevent
sagging using hangers or perforated straps and must slope upwards
not less than 1/4" per foot (0.635 cm/m) from the furnace to the vent ter-
minal.

It is recommended that you follow the venting safety procedure below.
This procedure is designed to detect an inadequate ventilation system
that can cause the appliances in the area to operate improperly causing
unsafe levels of Carbon Monoxide or an unsafe condition to occur.

SECTION VIII: START-UP AND 

ADJUSTMENTS

The initial start-up of the furnace requires the following additional
procedures:

When the gas supply is initially connected to the furnace, the gas piping
may be full of air. In order to purge this air, it is recommended that the
ground union be loosened until the odor of gas is detected. When gas is
detected, immediately retighten the union and check for leaks. Allow
five minutes for any gas to dissipate before continuing with the start-up
procedure. Be sure proper ventilation is available to dilute and carry
away any vented gas.

NOx SCREEN REMOVAL (Lo-NOx Models Only)

If the furnace is equipped with NOx screens and is to be used with LP
(propane) gas, the screens must be removed prior to start-up.

1.

Make sure that the electrical power to the unit is turned off and that
the gas supply is turned off at the shut-off valve.

2.

Remove the blower compartment and burner compartment access
doors.

3.

Disconnect the gas supply piping at the union to permit removal of
the entire burner and gas control assembly from the vestibule
panel. Use the wrench boss on the gas valve when removing or
installing the piping.

4.

Unplug the igniter from the wire harness. Disconnect the flame
sensor wires located on top of the air shield. Unplug the gas valve
from the wiring harness.

5.

Remove the screws holding the burner assembly to the vestibule
panel.

6.

Remove the burner assembly. It should be possible to swing the
burner assembly out of the way without disconnecting the remain-
ing wires.

7.

With the burner assembly out of the way, simply slide the NOx
screens out of the heat exchanger tubes and discard the screens.

8.

Replace all components in reverse order. Reconnect all wiring.

CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon-
monxide poisoning or death.
The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances
connected to the venting system are not in operation:

1. Inspect the venting system for proper size and horizontal pitch. Determine that there is no blockage, restriction, leakage, corrosion or other

deficiencies, which could cause an unsafe condition

2. Close all building doors and windows.

3. Turn on clothes dryers and TURN ON any exhaust fans, such as range hoods and bathroom exhausts, so they shall operate at maximum

speed. Open the fireplace dampers. Do not operate a summer exhaust fan.

4. Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so the appliance shall operate contin-

uously.

5. Test each appliance (such as a water heater) equipped with a draft hood for spillage (down-draft or no draft) at the draft hood relief opening

after 5 minutes of main burner operation. Appliances that do not have draft hoods need to be checked at the vent pipe as close to the
appliance as possible. Use a combustion analyzer to check the CO2 and CO levels of each appliance. Use a draft gauge to check for a
downdraft or inadequate draft condition.

6. After it has been determined that each appliance properly vents when tested as outlined above, return doors, windows, exhaust fans, fire-

place dampers and any other gas burning appliance to their normal condition.

7. If improper venting is observed during any of the above tests, a problem exists with either the venting system or the appliance does not

have enough combustion air (Supply Air from outside) to complete combustion. This condition must be corrected before the appliance can
function safely.

NOTE: 

An unsafe condition exists when the CO reading exceeds 40 ppm and the draft reading is not in excess of - 0.1 in. W.C. (-25 kPa) with

all of the appliance(s) operating at the same time.

8. Any corrections to the venting system and / or to the supply (outside) air system must be in accordance with the National Fuel Gas Code

Z223.1 or CAN/CGA B149.1 Natural Gas and Propane Installation Code (latest editions). If the vent system must be resized, follow the
appropriate tables in Appendix G of the above codes or for this appliance.

All electrical connections made in the field and in the factory should
be checked for proper tightness.

Содержание GG8S*MP

Страница 1: ...Position without filter Bottom Return 24 Blower Performance CFM Any Position without filter Left Side Return 25 These high efficiency compact units employ induced combustion reli able hot surface ign...

Страница 2: ...binet support the ends of the furnace rather than lifting by the cabinet flanges at the return air openings bottom or sides or supply air opening 13 When lifting the furnace it is acceptable to use th...

Страница 3: ...the National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 or for only the NFGC contact the American Gas Association 400 N Capital N W Washington DC 20001 or www NFPA org CANADA NS...

Страница 4: ...noxide detector with an alarm and battery back up is installed on the floor level where the gas equipment is to be installed In addition the installing plumber or gasfitter shall observe that a batter...

Страница 5: ...otated down for shipment In order to use the flanges remove the screw holding an individual flange rotate the flange so it is in the upward position and reinstall the screw then repeat this for all 4...

Страница 6: ...CE ASSEMBLY PC SERIES COILS These upflow coils are designed for installation on top of upflow fur naces only If the coil is used with a furnace of a different size use a 45 transition to allow proper...

Страница 7: ...will be necessary to seal the edges of the bottom panel to the casing using tape or other appropriate gasket material to prevent air leakage BOTTOM RETURN AND ATTIC INSTALLATIONS Bottom return applica...

Страница 8: ...one support at the supply end of the furnace one support located approximately in the center of the furnace near the blower shelf and the third support should be at the return end of the fur nace Mai...

Страница 9: ...M m3 min Cabinet Size Cabinet Dimensions Inches Approximate Operating Weights A A cm B B cm C C cm Lbs 40 11 7 800 22 7 A 14 1 2 36 8 13 3 8 34 0 10 3 26 2 89 60 17 6 1000 28 3 A 14 1 2 36 8 13 3 8 34...

Страница 10: ...this section specify the type of gas approved for this furnace only use those approved gases The instal lation of a drip leg and ground union is required Refer to Figure 15 FIGURE 13 Side Return Cuto...

Страница 11: ...ne LP gas must have the LoNOx screens removed prior to installation and operation See propane instructions Table 5 Nominal Manifold Pressure Manifold Pressures in wc Manifold Pressures kpa Altitude fe...

Страница 12: ...ct the thermostat wiring from the wiring connections on the thermostat to the terminal board on the ignition module as shown in Figures 17 or 18 Electronic thermostats may require the common wire to b...

Страница 13: ...ressor G Fan PP11C70224 THERMOSTAT RH 24 Volt Hot Heat XFMR RC 24 Volt Hot Cool XFMR W Full Stage Heat Clipping Jumper W914 for electric heat on thermostat is not necessary 24VAC Humidifier Optional C...

Страница 14: ...S HGD HP RHS O Reversing Valve Energized in Cool C 24 Volt Common R 24 Volt Hot W1 66 out Heat Y Compressor DEMAND DEFROST CONTROL X L Malfunction Light W Auxiliary Heat SINGLE STAGE HEAT PUMP 1 1 Par...

Страница 15: ...he furnace that operates on W2 will be supplying cold air in the Heating mode to the occupied spaces unless W2 is energized GAS PIPING Furnace gas supplies must be provided as specified with these ins...

Страница 16: ...scribed below 2 Connect a wire from the TWIN terminal of Furnace 1 to the TWIN terminal of Furnace 2 3 Install a separate 24V relay as shown in the diagram below Use of this relay is required as it en...

Страница 17: ...ney must extend at least 5 ft 1 5 m above the highest equipment draft hood or flue collar FAN ASSISTED COMBUSTION SYSTEM This appliance is equipped with an integral mechanical means to either draw pro...

Страница 18: ...must be given consideration in calculating free area If the free area of a specific louver or grille is not known Refer to Table 7 to estimate free area Ventilated Combustion Air The ventilated attic...

Страница 19: ...simply slide the NOx screens out of the heat exchanger tubes and discard the screens 8 Replace all components in reverse order Reconnect all wiring CARBON MONOXIDE POISONING HAZARD Failure to follow t...

Страница 20: ...ilots 2 Run furnace for a minimum of 3 minutes in heating operation 3 Measure time in sec for gas meter to complete 1 revolution and note reading The 2 cubic feet dial provides a more accurate mea sur...

Страница 21: ...22 164 327 818 64 56 112 281 23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48 97 243 28 129 257 643 76 47 95 23...

Страница 22: ...n and follow the operating instructions to place the unit back in operation 3 Adjust manifold pressure by adjusting gas valve regulator screw for the appropriate gas per the following 4 After the mani...

Страница 23: ...must be long enough to adequately cool the furnace but not so long that cold air is blown into the heated space The fan off timing may be adjusted by positioning the jumper on two of the four pins as...

Страница 24: ...638 2540 2448 2339 2224 2111 1974 1831 Medium High 2234 2233 2147 2092 2042 1974 1907 1820 1705 1575 Medium Low 1722 1716 1690 1681 1603 1553 1489 1426 1335 1241 Low 1396 1375 1348 1325 1263 1200 1150...

Страница 25: ...ow 1126 1115 1095 1049 1027 996 957 929 840 742 080C22 High 2972 2863 2769 2671 2571 2465 2352 2227 2095 1950 Medium High 2173 2146 2103 2082 2036 1966 1904 1827 1738 1621 Medium Low 1670 1667 1647 16...

Страница 26: ...ion occurs and the flame sensor begins its sensing function The blower motor will energize 30 seconds after the gas valve opens if a flame is detected Normal furnace operation will continue until the...

Страница 27: ...ed Flashes description below If the main limit switch opens five times within a single call for heat the control will also indicate 4 Red Flashes and will enter a one hour soft lockout 5 RED FLASHES T...

Страница 28: ...ill flash three green flashes when the memory has been cleared then will resume the normal slow green flash after a five second pause SECTION X REPLACEMENT PARTS LIST DESCRIPTION MOTOR MOTOR DIRECT DR...

Страница 29: ...lower motor speed connections shown are typical but may vary by model and application LEGENDE DS Commutateur de porte MOT Moteur soufflerie TST Thermostat ROS Commutateur de roulement IDM D induct mot...

Страница 30: ...ge without notice Published in U S A 356485 UIM G 1211 Copyright 2011 by Johnson Controls Inc All rights reserved Supersedes 356485 UIM F 0910 Johnson Controls Unitary Products 5005 York Drive Norman...

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