Io-123090-gfw-020113 ©2013 airmark gfw series installation & operating instructions high efficiency x13 vertical wall mount air handler (hydronic) model (including heater model #) ________________________________ serial #____________________________________________________ installer ________________...
Io-123090-gfw-020113 - 2 - ©2013 airmark safety instruction potential safety hazards are alerted using symbol. The symbol is used in conjunction with terms that indicate the intensity of the hazard. Warning this symbol indicates a potentially hazardous situation which if not avoided, could result in...
Io-123090-gfw-020113 - 3 - ©2013 airmark secondary to keep droplets out but allow trapped condensate into secondary fittings. Caution since coil is upstream of the blower; all drains must be trapped or sealed. Failure to do so will result in condensate overflow from the drain pan. Airmark will not b...
Io-123090-gfw-020113 - 4 - ©2013 airmark to avoid damage to grommets (where present), remove these prior to brazing by sliding over the lines. Use a quenching cloth or allow the lines to cool before reinstalling the grommets. Caution some airmark coils may include a schrader valve on the suction man...
Io-123090-gfw-020113 - 5 - ©2013 airmark 7) slide the 13/16 nut onto the distributor body. 8) tighten the nut to a torque of approximately 10-30 ft-lbs. Do not over tighten the nut. This will hamper the piston movement during operation. 9) slide the grommet back to position to prevent air leakage. T...
Io-123090-gfw-020113 - 6 - ©2013 airmark fig.5. Figure showing the sensing bulb mounted in a vertical orientation caution if the txv sensing bulb is mounted vertically; the capillary must be directed upwards. The bulb must be mounted on the wall opposite to that being directly hit by the refrigerant...
Io-123090-gfw-020113 - 7 - ©2013 airmark fig. 6. Shows the components of a typical txv assembly txv bulb tail piece distributor teflon o-rings fig.6. Components of a typical txv assembly caution using a non-bleed expansion valve may require the use of a hard-start kit. Follow the outdoor unit manufa...
Io-123090-gfw-020113 - 8 - ©2013 airmark the freeze protection sensor is connected to the fp and r terminals. These are normally open and will close when the sensor sees 40ºf. The pump stays on for a minimum of 30 secs. The board has a built-in timer which circulates hot water 6 times a day for 60 s...
Io-123090-gfw-020113 - 9 - ©2013 airmark 7) check the pump to ensure proper operation. The water inlet of the unit should be hot if the water temperature in the water heater has reached the set point. If water is not being circulated through the coil but the pump is running, then open the air bleed ...
Io-123090-gfw-020113 - 10 - ©2013 airmark electric heat controls turn on power supply. Set thermostat fan switch to on. Set the cooling indicator to maximum, heating to minimum. System switch may be on heat or cool. Check slope gauge measurement against appropriate air flow chart. Make damper, reg...
Io-123090-gfw-020113 - 11 - ©2013 airmark 7) air filter replacement: an air filter can restrict the airflow of air to the fan coil if it is not cleaned or replaced periodically. When replacing the air filter, always replace with the same type and size as originally furnished with the unit. Gfw hydro...
Io-123090-gfw-020113 - 12 - ©2013 airmark with check valves, remove any extra check valves except for the one supplied with the fan coil g. The air handler is undersized for space being heated h. Water heater is undersized note: all units installed in massachusetts are required to be in compliance w...
Io-123090-gfw-020113 ©2013 airmark hig h volt age di sco nn ect all po wer sou rces p rio r to servi cing. Failure might lea d to s afet y haz ard wiring diagram for gfw models.
